Texas Instruments ADS8508IBDWR

Description
The ADS8508 is a 12-bit sampling analog-to-digital (A/D) converter utilizing CMOS structures. It comprises a 12-bit successive approximation register (SAR) A/D converter with sample-and-hold, reference, clock, and serial data interface. Data can be output using the internal clock or synchronized to an external data clock. The ADS8508 also provides an output synchronization pulse for ease of use with standard DSP processors.
Specified for a 250-kHz sampling rate over the full temperature range, the ADS8508 employs precision resistors for various input ranges, including ±10 V and 0 V to 5 V. Its innovative design allows operation from a single 5-V supply with power dissipation under 100 mW.

Features
250-kHz sampling rate
4-V, 5-V, 10-V, ±3.33-V, ±5-V, and ±10-V input ranges
73-dB SINAD with 45-kHz input
±0.45 LSB max INL
±0.45 LSB max DNL, 12-bits no missing codes
±1 LSB bipolar zero errors
±0.4 PPM/°C bipolar zero error drift
Six specified input ranges
SPI compatible serial output with daisy-chain (TAG) feature
5-V supply
Pin-compatible with ADS7808 (low speed) and 16-bit ADS8509/7809
Uses internal or external reference
70-mW typ power dissipation at 250 KSPS
20-pin SO package
Simple DSP interface

Applications
Industrial process control
Data acquisition systems
Digital signal processing
Medical equipment
Instrumentation