ADS8887 Analog-to-Digital Converter

Product Highlights > ADS8887 Analog-to-Digital Converter

            ADS8887 Analog-to-Digital Converter
                    Texas Instruments' 18-bit, 100 kSPS, serial interface, micro-power, miniature, truely-differential input, SAR ADC 
    

Image of Texas Instruments' ADS8887 Analog-to-Digital Converter Texas Instruments' ADS8887 is an 18-bit, 100 kSPS, true-differential input, analog-to-digital converter (ADC). The device operates with a 2.5 to 5 V external reference, offering a wide selection of signal ranges without additional input signal scaling. The reference voltage setting is independent of, and can exceed, the analog supply voltage (AV_DD).

The device offers an SPI-compatible serial interface that also supports daisy-chain operation for cascading multiple devices. The device supports unipolar, true-differential analog input signals with a differential input swing of –VREF to +VREF. This true-differential analog input structure allows for a common-mode voltage of any value in the range of 0 V to +V_REF (when both inputs are within the operating input range of –0.1 V to V_REF + 0.1 V).

Features	Applications
Sample rate: 100 kHz No latency output Unipolar, true-differential input range: –V_REF to +V_REF Wide common-mode voltage range: 0 V to V_REF with 90 dB CMRR (min)	SPI™-compatible serial interface with daisy-chain option Excellent AC and DC performance: SNR: 100 dB, THD: –115 dB INL: ±1.5 LSB (typ), ±3.0 LSB (max) DNL: +1.5 and –1 LSB (max), 18-bit NMC