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The AD7612BSTZ is a 16-bit charge redistribution successive approximation register (SAR) architecture analogue-to-digital converter (ADC) manufactured on ADI's iCMOS high-voltage process. The device's input ranges and operating modes can be configured in hardware or through a dedicated write-only serial configuration port.The AD7612 has a built-in 16-bit high-speed sampling ADC, an internal conversion clock, an internal reference voltage source (and buffer), error-correcting circuits, and serial and parallel system interface ports. On the falling edge of CNVST, it samples the voltage difference between IN+ and IN-. The AD7612 features four different analogue input ranges and three different sampling modes: Warp mode for highest throughput, Normal mode for highest asynchronous throughput, and in Pulse mode, power consumption is linearly proportional to throughput. The operating temperature range is from -40°C to +85°C.

Product Features

Multi-pin/software programmable input range: 5 V, 10 V, ±5 V, ±10 V

Input range/mode selection: pin or serial SPI®-compatible

Throughput

750 kSPS (Warp mode)

600 kSPS (Normal Mode)

500 kSPS (Pulse Mode)

Integral Non-Linearity (INL): ±0.75 LSB typical, ±1.5 LSB maximum (FSR of ±23 ppm)

16-bit resolution, no missing codes

Signal-to-noise ratio: 92 dB (5 V) minimum @ 2 kHz, 94 dB (±10 V) typical @ 2 kHz

Total harmonic distortion: -107 dB typical

iCMOS™ process technology

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

No pipeline delay (SAR architecture)

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

SPI-/QSPI™-/MICROWIRE™-/DSP compatible

Applications

Process control

Medical instrumentation

High-speed data acquisition

Digital Signal Processing

Instrumentation

Spectrum Analysis

Automatic Test Equipment

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