GENERAL DESCRIPTION

The AD7610 is a 16-bit charge redistribution successive approximation register (SAR), architecture analog-to-digital converter (ADC) fabricated on Analog Devices, Inc.’s iCMOS high voltage process. The device is configured through hardware or via a dedicated write only serial configuration port for input range and operating mode. The AD7610 contains a high speed 16-bit sampling ADC, an internal conversion clock, an internal reference (and buffer), error correction circuits, and both serial and parallel system interface ports. FEATURES

Multiple pins/software programmable input ranges: 5 V, 10 V, ±5 V, ±10 V

Pins or serial SPI?-compatible input ranges/mode selection

Throughput: 250 kSPS

16-bit resolution with no missing codes

INL: ±0.75 LSB typ, ±1.5 LSB max (±23 ppm of FSR)

SNR: 94 dB @ 2 kHz

iCMOS? process technology

5 V internal reference: typical drift 3 ppm/°C;

On-chip temperature sensor

No pipeline delay (SAR architecture)

Parallel (16- or 8-bit bus) and serial 5 V/3.3 V interface

SPI-/QSPI?-/MICROWIRE?-/DSP-compatible

Power dissipation

90 mW @ 250 kSPS

10 mW @ 1 kSPS

48-lead LQFP and LFCSP (7 mm × 7 mm) packages

APPLICATIONS

Process control

Medical instruments

High speed data acquisition

Digital signal processing

Instrumentation

Spectrum analysis

ATE