GENERAL DESCRIPTION

The AD7676 is a 16-bit, 500 kSPS, charge redistribution SAR, fully differential analog-to-digital converter (ADC) that operates from a single 5 V power supply. The part contains a high speed 16-bit sampling ADC, an internal conversion clock, error correction circuits, and both serial and parallel system interface ports.

FEATURES

Throughput: 500 kSPS

INL: ±1 LSB Max (±0.0015 of Full Scale)

16-Bit Resolution with No Missing Codes

S/(N+D): 94 dB Typ @ 45 kHz

THD: –110 dB Typ @ 45 kHz

Differential Input Range: ±2.5 V

Both AC and DC Specifications

No Pipeline Delay

Parallel (8 Bits/16 Bits) and Serial 5 V/3 V Interface

SPI?/QSPI?/MICROWIRE?/DSP Compatible

Single 5 V Supply Operation

67 mW Typical Power Dissipation, 15 μW @ 100 SPS

Power-Down Mode: 7 μW Max

Packages: 48-Lead Quad Flatpack (LQFP)

48-Lead Frame Chip Scale (LFCSP)

Pin-to-Pin Compatible with the AD7675

APPLICATIONS

CT Scanners

Data Acquisition

Instrumentation

Spectrum Analysis

Medical Instruments

Battery-Powered Systems

Process Control