Datenblatt für LM2904AH von STMicroelectronics

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TSSOP8
Features
• Frequency compensation implemented internally
• Large DC voltage gain: 100 dB
• Wide bandwidth (unity gain): 1.1 MHz (temperature compensated)
• Very low supply current/amplifier, essentially independent of supply voltage
• Low input bias current: 20 nA (temperature compensated)
• Low input offset current: 2 nA
• Input common-mode voltage range includes negative rail
• Differential input voltage range equal to the power supply voltage
• Large output voltage swing 0 V to ((VCC +) -1.5 V)
Description
This circuit consists of two independent, high gain operational amplifiers (op amps)
that have frequency compensation implemented internally. They are designed
specifically for automotive and industrial control systems. The circuit operates from a
single power supply over a wide range of voltages. The low power supply drain is
independent of the magnitude of the power supply voltage.
Application areas include transducer amplifiers, DC gain blocks and all the
conventional op amp circuits which can now be more easily implemented in single
power supply systems. For example, these circuits can be directly supplied from the
standard 5 V which is used in logic systems and easily provides the required
interface electronics without requiring any additional power supply.
In the linear mode, the input common-mode voltage range includes ground and the
output voltage can also swing to ground, even though operated from a single power
supply.
Maturity status link
LM2904H
LM2904AH
Related products
LM2904WH For enhanced ESD
performances
Low-power, dual operational amplifier
LM2904H, LM2904AH
Datasheet
DS11290 - Rev 5 - October 2018
For further information contact your local STMicroelectronics sales office. www.st.com
Non-\nveninq
1Schematic diagram
Figure 1. Schematic diagram (1/2 LM2904AH)
6
µ
A4
µ
A100 µA
Q2 Q3
Q4Q1
Inverting
input
Non-inverting
input
Q8 Q9
Q10
Q11
Q12
50
µ
A
Q13
Output
Q7
Q6
Q5
RSC
VCC
CC
GND
LM2904H, LM2904AH
Schematic diagram
DS11290 - Rev 5 page 2/19
3 II 1 j 5%: E E E E
2Package pin connections
Figure 2. TSSOP8 package pin connections (top view)
VCC+
VCC-
OUT1
IN1-
IN1+
OUT2
IN2-
IN2+
LM2904H, LM2904AH
Package pin connections
DS11290 - Rev 5 page 3/19
3Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings
Symbol Parameter Value Unit
VCC Supply voltage (1) ±16 or 32
V
Vid Differential input voltage (2) ±32
Vin Input voltage -0.3 to 32
Output short-circuit duration (3) Infinite s
Iin
Input current: Vin driven negative (4) 5 mA in DC or 50 mA in AC
(duty cycle = 10 %, T = 1 s) mA
Input current: Vin driven positive above AMR value (5) 0.4
Tstg Storage temperature range -65 to 150 °C
TjMaximum junction temperature 160
Rthja Thermal resistance junction to ambient (6) 120 °C/W
Rthjc Thermal resistance junction to case (6) 37
ESD
HBM: human body model (7) 300 V
MM: machine model (8) 200
CDM: charged device model (9) 1.5 kV
1. All voltage values, except differential voltage are with respect to network ground terminal.
2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
3. Short-circuits from the output to VCC can cause excessive heating if (Vcc+) > 15 V. The maximum output current is
approximately 40 mA, independent of the magnitude of VCC. Destructive dissipation can result from simultaneous short-
circuits on all amplifiers.
4. This input current only exists when the voltage at any of the input leads is driven negative. It is due to the collector-base
junction of the input PNP transistor becoming forward-biased and thereby acting as input diode clamp. In addition to this
diode action, there is NPN parasitic action on the IC chip. This transistor action can cause the output voltages of the op
amps to go to the VCC voltage level (or to ground for a large overdrive) for the time during which an input is driven negative.
This is not destructive and normal output is restored for input voltages above -0.3 V.
5. The junction base/substrate of the input PNP transistor polarized in reverse must be protected by a resistor in series with
the inputs to limit the input current to 400 µA max (R = (Vin-32 V)/400 µA).
6. Short-circuits can cause excessive heating and destructive dissipation. Values are typical.
7. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 kΩ resistor
between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating.
8. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between two pins of the
device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of connected pin combinations
while the other pins are floating.
9. Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly
to the ground through only one pin. This is done for all pins.
Table 2. Operating conditions
Symbol Parameter Value Unit
VCC Supply voltage 3 to 30 V
Vicm Common-mode input voltage range 0 to (VCC +) - 1.5
Toper Operating free-air temperature range -40 to 150 °C
LM2904H, LM2904AH
Absolute maximum ratings and operating conditions
DS11290 - Rev 5 page 4/19
4Electrical characteristics
Table 3. VCC+ = 5 V, VCC- = ground, VO = 1.4 V, Tamb = 25 °C (unless otherwise specified), Tmin = -40 °C, and
Tmax = 150 °C
Symbol Parameter Min. Typ. Max. Unit
Vio
Input offset voltage, Tamb = 25 °C, LM2904AH (1) 1 2
mV
Input offset voltage, Tmin ≤ Tamb ≤ Tmax LM2904AH (1) 6
Input offset voltage, Tamb = 25 °C, LM2904H (1) 2 7
Input offset voltage, Tmin ≤ Tamb ≤ Tmax LM2904H (1) 9
ΔVio/ΔT Input offset voltage drift 7 40 µV/°C
Iio
Input offset current, Tamb = 25 °C 2 30 nA
Input offset current, Tmin ≤ Tamb ≤ Tmax 40
ΔIio/ΔT Input offset current drift 10 300 pA/°C
Iib
Input bias current, Tamb = 25 °C (2) 20 150 nA
Input bias current, Tmin ≤ Tamb ≤ Tmax (2) 200
Avd
Large signal voltage gain, VCC+ = 15 V, RL = 2 kΩ, Vο = 1.4 V to 11.4 V, Tamb = 25 °C 50 100 V/mV
Large signal voltage gain, VCC+ = 15 V, RL = 2 kΩ, Vο = 1.4 V to 11.4 V, Tmin ≤ Tamb ≤ Tmax 25
SVR
Supply voltage rejection ratio (RS ≤ 10 kΩ), Tamb = 25 °C 65 100 dB
Supply voltage rejection ratio (RS ≤ 10 kΩ),Tmin ≤ Tamb ≤ Tmax 65
ICC
Supply current, all amp, no load, Tamb = 25 °C, VCC+ = 5 V 0.7 1.2 mA
Supply current, all amp, no load, Tmin ≤ Tamb ≤ Tmax, VCC+ = 30 V 2
Vicm
Input common mode voltage range (VCC + = 30 V), Tamb = 25 °C (3) 0(VCC+) -
1.5 V
Input common mode voltage range (VCC + = 30 V), Tmin ≤ Tamb ≤ Tmax 0(VCC+) - 2
CMR
Common-mode rejection ratio (RS = 10 kΩ), Tamb = 25 °C 70 85 dB
Common-mode rejection ratio (RS = 10 kΩ), Tmin = Tamb = Tmax 60
Isource Output short-circuit current, VCC + = 15 V, V o = 2 V, Vid = 1 V 20 40 60 mA
Isink
Output sink current, VO = 2 V, VCC+ = 5 V 10 20
Output sink current, VO = 0.2 V, VCC+ = 15 V 12 50 µA
VOH
High level output voltage (VCC + = 30 V), Tamb = 25 °C, RL = 2 kΩ 26
V
High level output voltage (VCC + = 30 V), Tmin ≤ Tamb ≤ Tmax 26 27
High level output voltage (VCC + = 30 V), Tamb = 25 °C, RL = 10 kΩ 27
High level output voltage (VCC + = 30 V), Tmin ≤ Tamb ≤ Tmax 27 28
VOL
Low level output voltage (RL = 10 kΩ), Tamb = 25 °C 5 20 mV
Low level output voltage (RL = 10 kΩ), Tmin ≤ Tamb ≤ Tmax 20
SR
Slew rate, VCC + = 15 V, Vin = 0.5 to 3 V, RL = 2 kΩ, CL =100 pF, unity gain, Tamb = 25 °C 0.3 0.6 V/µs
Slew rate, VCC + = 15 V, Vin = 0.5 to 3 V, RL = 2 kΩ, CL =100 pF, unity gain, Tmin ≤ Tamb ≤ Tmax 0.2
GBP Gain bandwidth product, f = 100 kHz, VCC + = 30 V, Vin = 10 mV, RL = 2 kΩ, CL = 100 pF 0.7 1.1 MHz
THD Total harmonic distortion, f = 1 kHz, AV = 20 dB, RL = 2 kΩ, Vo = 2 Vpp, CL = 100 pF, VCC + = 30 V 0.02 %
LM2904H, LM2904AH
Electrical characteristics
DS11290 - Rev 5 page 5/19
Symbol Parameter Min. Typ. Max. Unit
enEquivalent input noise voltage, f = 1 kHz, RS = 100 Ω, VCC + = 30 V 55 nV/√ Hz
VO1/VO2 Channel separation, 1 kHz ≤ f ≤ 20 kHz (4) 120 dB
1. VO = 1.4 V, RS = 0 Ω, 5 V < VCC + < 30 V, 0 V < Vic < (VCC +) - 1.5 V.
2. The direction of the input current is out of the IC. This current is essentially constant, independent of the
state of the output, so there is no change in the loading charge on the input lines.
3. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more
than 0.3 V. The upper end of the common-mode voltage range is (VCC +) – 1.5 V, but either or both inputs
can go to 32 V without damage.
4. Due to the proximity of external components, ensure that the stray capacitance does not cause coupling
between these external parts. This can typically be detected at higher frequencies because this type of
capacitance increases.
LM2904H, LM2904AH
Electrical characteristics
DS11290 - Rev 5 page 6/19
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5Electrical characteristic curves
Figure 3. Open-loop frequency response
VOLTAGE GAIN (dB)
1.0 10 100 1k 10k 100k 1M 10M
VCC = +10 to + 15V &
FREQUENCY (Hz)
10 M Ω
VI
VCC/2
VCC = 30V &
0.1µF
VCC VO
-
+
-55°C Tamb +125°C
140
120
100
80
60
40
20
0
-55°C Tamb +125°C
Figure 4. Large signal frequency response
FREQUENCY (Hz)
1k 10k 100k 1M
OUTPUT SWING (Vpp)
+7V 2k Ω
1k Ω
100k Ω
+15V
VO
-
+
VI
20
15
10
5
0
Figure 5. Voltage follower large signal response
INPUT
VO LTAG E (V)
OUTPUT
VO LTAG E (V)
0 10 20 30 4 0
TIME (
µ
s)
R L 2 k Ω
VCC = +15V
4
3
2
1
0
3
2
1
Figure 6. Current sinking output characteristics
OUTPUT SINK CURRENT (mA)
0,001 0 ,01 0 ,1 1 1 0 1 00
OUTPUT VOLTAG E ( V)
VCC = +5V
VCC = + 15V
VCC = + 30V
-
IO
VO
Tamb = +25°C
vcc/2
vcc
+
10
1
0.1
0.01
LM2904H, LM2904AH
Electrical characteristic curves
DS11290 - Rev 5 page 7/19
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Figure 7. Voltage follower small signal response
TIME (µs)
Figure 8. Current sourcing output characteristics
Figure 9. Input current versus temperature Figure 10. Current limiting
Figure 11. Input voltage range Figure 12. Supply current
LM2904H, LM2904AH
Electrical characteristic curves
DS11290 - Rev 5 page 8/19
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Figure 13. Voltage gain
Figure 14. Input current versus supply voltage
Figure 15. Gain bandwidth product Figure 16. Power supply rejection ratio
Figure 17. Common-mode rejection ratio Figure 18. Phase margin vs. capacitive load
Iout (µA)
Phase margin at Vcc = 15 V and Vicm = 7.5 V
vs. Iout and capacitive load value
LM2904H, LM2904AH
Electrical characteristic curves
DS11290 - Rev 5 page 9/19
< f="">
6Typical single-supply applications
Figure 19. AC coupled inverting amplifier
1/2
LM2904
~
0
2V
PP
R
10 k
Ω
L
C
o
e
o
R
6.2 k
Ω
B
R
100 kΩ
f
R1
10 k
Ω
C
I
e
I
V
CC
R2
100 kΩ
C1
10
µF
R3
100 kΩ
A = - R
R1
V
f
(as shown A = -10)
V
Figure 20. AC coupled non-inverting amplifier
1/2
LM2904
~
0
2V
PP
R
10 k
Ω
L
C
o
e
o
R
6.2 k
Ω
B
C1
0.1 µF
e
I
V
CC
(as shown A = 11)
V
A = 1 +
R2
R1
V
R1
100 k
Ω
R2
1 M
Ω
C
I
R3
1 M
Ω
R4
100 k
Ω
R5
100 k
Ω
C2
10
µF
Figure 21. Non-inverting DC gain
R1
10 k
Ω
R2
1 M
Ω
1/2
LM2904
10 k
Ω
eI
eO+5V
eO(V)
(mV)
0
AV= 1 + R2
R1
(As shown = 101)
AV
Figure 22. DC summing amplifier
1/2
LM2904
eO
e4
e3
e2
e1100 k
Ω
100 k
Ω
100 k
Ω
100 k
Ω
100 k
Ω
100 k
Ω
eo = e1 + e2 - e3 - e4
where (e1 + e2) (e3 + e4)
to keep eo 0V
≥
≥
Figure 23. High input Z, DC differential amplifier
+
1/2
LM2904
R1
100 k
Ω
R2
100 k
Ω
R4
100 k
Ω
R3
100 k
Ω
+V2
V1
V
o
1/2
LM2904
If R1 = R5 and R3 = R4 = R6 = R7
eo = [ 1 + ] (e2 - e1)
As shown eo = 101 (e2 - e1)
2R1
R2
Figure 24. Using symmetrical amplifiers to reduce input
current
I
B
2N 929
0.001
µ
F
I
B
3 M
Ω
I
B
e
o
I
I
e
I
I
B
I
B
Input current compensation
1.5 M
Ω
1/2
LM2904
1/2
LM2904
LM2904H, LM2904AH
Typical single-supply applications
DS11290 - Rev 5 page 10/19
Figure 25. Low drift peak detector
1/2
LM2904
I
B
2N 929
0.001
µ
F
I
B
3R
3 M
Ω
I
B
Input current
compensation
e
o
I
B
e
I
Z
o
Z
I
C
1 µF
2I
B
R
1 M
Ω
2I
B
1/2
LM2904
1/2
LM2904
Figure 26. Active bandpass filter
1/2
LM2904
R8
100 k
Ω
C3
10
µF
R7
100 k
Ω
R5
470 k
Ω
C1
330 pF
V
o
V
CC
R6
470 k
Ω
C2
330 pF
R4
10 M
Ω
R1
100 k
Ω
R2
100 k
Ω
+V1
R3
100 k
Ω
1/2
LM2904
1/2
LM2904
Fo = 1 kHz
Q = 50
Av = 100 (40 dB)
LM2904H, LM2904AH
Typical single-supply applications
DS11290 - Rev 5 page 11/19
7Package information
In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK®
packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions
and product status are available at: www.st.com. ECOPACK® is an ST trademark.
LM2904H, LM2904AH
Package information
DS11290 - Rev 5 page 12/19
u u ‘H’W‘H’ M- % g 3mm 3313 w mm W m wmuwm 1 w
7.1 TSSOP8 package information
Figure 27. TSSOP8 package outline
a a a
Table 4. TSSOP8 mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A 1.2 0.047
A1 0.05 0.15 0.002 0.006
A2 0.80 1.00 1.05 0.031 0.039 0.041
b 0.19 0.30 0.007 0.012
c 0.09 0.20 0.004 0.008
D 2.90 3.00 3.10 0.114 0.118 0.122
E 6.20 6.40 6.60 0.244 0.252 0.260
E1 4.30 4.40 4.50 0.169 0.173 0.177
e 0.65 0.0256
k 0° 8° 0° 8°
L 0.45 0.60 0.75 0.018 0.024 0.030
L1 1 0.039
aaa 0.1 0.004
LM2904H, LM2904AH
TSSOP8 package information
DS11290 - Rev 5 page 13/19
8Ordering information
Table 5. Order codes
Order code Temperature range Package Packing Marking
LM2904AHYPT (1)
-40 °C to 150 °C TSSOP8 (automotive grade level) Tape and reel LM4AH
LM2904HYPT (1) 2904H
1. Qualified and characterized according to AEC Q100 and Q003 or equivalent, advanced screening according
to AEC Q001 and Q002 or equivalent.
LM2904H, LM2904AH
Ordering information
DS11290 - Rev 5 page 14/19
Revision history
Table 6. Document revision history
Date Revision Changes
19-Oct-2015 1 Initial release
05-Nov-2015 2
Updated datasheet layout
Table 1: removed Toper parameter
Table 3: updated table title
16-Feb-2016 3 Datasheet status changed to "production data"
Table 3: unit of VOL parameter changed from “V” to ‘mV”
29-Feb-2016 4 Updated product status footnote
Table 5: replaced footnote 1
15-Oct-2018 5 Added new order code LM2904H in Table 5. Order codes and VIO parameter in
Section 4 Electrical characteristics
LM2904H, LM2904AH
DS11290 - Rev 5 page 15/19
Contents
1Schematic diagram ................................................................2
2Package pin connections ..........................................................3
3Absolute maximum ratings and operating conditions ..............................4
4Electrical characteristics...........................................................5
5Electrical characteristic curves ....................................................7
6Typical single-supply applications ................................................10
7Package information..............................................................12
7.1 TSSOP8 package information ...................................................13
8Ordering information .............................................................14
Revision history .......................................................................15
Contents ..............................................................................16
List of tables ..........................................................................17
List of figures..........................................................................18
LM2904H, LM2904AH
Contents
DS11290 - Rev 5 page 16/19
List of tables
Table 1. Absolute maximum ratings .............................................................4
Table 2. Operating conditions .................................................................4
Table 3. VCC+ = 5 V, VCC- = ground, VO = 1.4 V, Tamb = 25 °C (unless otherwise specified), Tmin = -40 °C, and Tmax = 150 °C
................................................................................5
Table 4. TSSOP8 mechanical data ............................................................. 13
Table 5. Order codes ......................................................................14
Table 6. Document revision history ............................................................. 15
LM2904H, LM2904AH
List of tables
DS11290 - Rev 5 page 17/19
List of figures
Figure 1. Schematic diagram (1/2 LM2904AH) .....................................................2
Figure 2. TSSOP8 package pin connections (top view) ...............................................3
Figure 3. Open-loop frequency response.........................................................7
Figure 4. Large signal frequency response .......................................................7
Figure 5. Voltage follower large signal response ....................................................7
Figure 6. Current sinking output characteristics ....................................................7
Figure 7. Voltage follower small signal response....................................................8
Figure 8. Current sourcing output characteristics ...................................................8
Figure 9. Input current versus temperature .......................................................8
Figure 10. Current limiting ....................................................................8
Figure 11. Input voltage range .................................................................8
Figure 12. Supply current ....................................................................8
Figure 13. Voltage gain ......................................................................9
Figure 14. Input current versus supply voltage ......................................................9
Figure 15. Gain bandwidth product ..............................................................9
Figure 16. Power supply rejection ratio ...........................................................9
Figure 17. Common-mode rejection ratio..........................................................9
Figure 18. Phase margin vs. capacitive load .......................................................9
Figure 19. AC coupled inverting amplifier ........................................................10
Figure 20. AC coupled non-inverting amplifier .....................................................10
Figure 21. Non-inverting DC gain ..............................................................10
Figure 22. DC summing amplifier ..............................................................10
Figure 23. High input Z, DC differential amplifier.................................................... 10
Figure 24. Using symmetrical amplifiers to reduce input current ......................................... 10
Figure 25. Low drift peak detector ............................................................. 11
Figure 26. Active bandpass filter .............................................................. 11
Figure 27. TSSOP8 package outline............................................................13
LM2904H, LM2904AH
List of figures
DS11290 - Rev 5 page 18/19
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LM2904H, LM2904AH
DS11290 - Rev 5 page 19/19