Texas Instruments

THS4551 Fully Differential Amplifier

Texas Instruments offers its THS4551, low-noise, precision, 150 MHz, fully differential amplifier featuring a negative rail input (NRI)

Image of Texas Instruments' THS4551 Fully Differential AmplifierTexas Instruments' THS4551, fully differential amplifier offers an easy interface from single-ended sources to the differential output required by high-precision analog-to-digital converters (ADCs). Designed for exceptional DCaccuracy, low noise, and robust capacitive load driving, this device is well suited for data acquisition systems where high precision is required along with the best signal-to-noise ratio (SNR) and spurious-free dynamic range (SFDR) through the amplifier and ADC combination.

The THS4551 features the negative rail input required when interfacing a DC-coupled, ground-centered, source signal to a single-supply, differential input ADC. Very-low DC error and drift terms support the emerging 16- to 20-bit, successive-approximation register (SAR) input requirements. A wide-range output common-mode control supports the ADC running from 1.8 V to 5 V supplies with ADC common-mode input requirements from 0.7 V to greater than 3 V.

The THS4551 device is characterized for operation over the wide temperature range of -40°C to 125°C and is available in 8-pin VSSOP, 16-pin VQFN, and 10-pin WQFN packages.

Features
  • Bandwidth: 150 MHz (G = 1 V/V)
  • Differential output slew rate: 220 V/µs
  • Gain bandwidth product: 135 MHz
  • Negative rail input (NRI), rail-to-rail output (RRO)
  • Wide output common-mode control range
  • Single-supply operating range: 2.7 V to 5.4 V
  • Trimmed supply current: 1.35 mA (25°C)
  • 25°C input offset: ±175 µV (max.)
  • Input offset voltage drift: 2.0 µV/°C (max.)
  • Differential input voltage noise: 3.3 nV/√Hz
  • HD2: -128 dBc at 2 VPP, 100 kHz
  • HD3: -139 dBc at 2 VPP, 100 kHz
  • < 50 ns settling time: 4 V step to 0.01%
  • 18-bit settling time: 4 V step, < 500 ns

THS4551 Fully Differential Amplifier

ImageManufacturer Part NumberDescriptionOutput TypeSlew RateGain Bandwidth ProductAvailable QuantityPriceView Details
IC OPAMP DIFF 1 CIRCUIT 8VSSOPTHS4551IDGKTIC OPAMP DIFF 1 CIRCUIT 8VSSOPDifferential, Rail-to-Rail220V/µs135 MHz660 - Immediate$5.19View Details
IC OPAMP DIFF 1 CIRCUIT 10WQFNTHS4551IRUNTIC OPAMP DIFF 1 CIRCUIT 10WQFNDifferential, Rail-to-Rail220V/µs135 MHz373 - Immediate$5.19View Details
IC OPAMP DIFF 1 CIRCUIT 16VQFNTHS4551IRGTTIC OPAMP DIFF 1 CIRCUIT 16VQFNDifferential, Rail-to-Rail220V/µs135 MHz570 - Immediate$5.19View Details
IC OPAMP DIFF 1 CIRCUIT 16VQFNTHS4551IRGTRIC OPAMP DIFF 1 CIRCUIT 16VQFNDifferential, Rail-to-Rail220V/µs135 MHz3103 - Immediate$4.40View Details
IC OPAMP DIFF 1 CIRCUIT 10WQFNTHS4551IRUNRIC OPAMP DIFF 1 CIRCUIT 10WQFNDifferential, Rail-to-Rail220V/µs135 MHz3876 - Immediate$4.40View Details
IC OPAMP DIFF 1 CIRCUIT 8VSSOPTHS4551IDGKRIC OPAMP DIFF 1 CIRCUIT 8VSSOPDifferential, Rail-to-Rail220V/µs135 MHz0 - Immediate$4.40View Details

Evaluation Boards

ImageManufacturer Part NumberDescriptionAmplifier TypeOutput TypeSlew RateAvailable QuantityPriceView Details
EVAL BOARD FOR THS4551THS4551RUNEVMEVAL BOARD FOR THS4551DifferentialDifferential, Rail-to-Rail220V/µs0 - Immediate$102.61View Details
EVAL BOARD FOR THS4551THS4551RGTEVMEVAL BOARD FOR THS4551DifferentialDifferential, Rail-to-Rail220V/µs1 - Immediate$102.61View Details
EVAL BOARD FOR THS4551THS4551DGKEVMEVAL BOARD FOR THS4551DifferentialDifferential, Rail-to-Rail220V/µs8 - Immediate$102.61View Details
Published: 2016-11-09

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