GENERAL DESCRIPTION

The AD7660 is a 16-bit, 100 kSPS, charge redistribution SAR, analog-to-digital converter that operates from a single 5 V power supply. The part contains an internal conversion clock, error correction circuits, and both serial and parallel system interface ports.
The AD7660 is hardware factory-calibrated and is comprehensively tested to ensure ac parameters such as signal-to-noise ratio (SNR) and total harmonic distortion (THD), in addition to the more traditional dc parameters of gain, offset, and linearity.
It is fabricated using Analog Devices’ high performance, 0.6 micron CMOS process with correspondingly low cost and is available in a 48-lead LQFP and a tiny 48-lead LFCSP with operation specified from –40∞C to +85∞C.

FEATURES

Throughput: 100 kSPS
INL: ±3 LSB Max (±0.0046% of Full-Scale)
16-Bit Resolution with No Missing Codes
S/(N+D): 87 dB Min @ 10 kHz, 90 dB Typ @ 45 kHz
THD: –96 dB Max @ 10 kHz
Analog Input Voltage Range: 0 V to 2.5 V
Both AC and DC Specifications
No Pipeline Delay
Parallel and Serial 5 V/3 V Interface
SPI®/QSPI™/MICROWIRE™/DSP Compatible
Single 5 V Supply Operation
21 mW Typical Power Dissipation, 21 μW @ 100 SPS
Power-Down Mode: 7 μW Max
Package: 48-Lead Quad Flatpack (LQFP)
48-Lead Chip Scale Package (LFCSP)
Pin-to-Pin Compatible with the AD7664

APPLICATIONS

Data Acquisition
Battery-Powered Systems
PCMCIA
Instrumentation
Automatic Test Equipment
Scanners
Medical Instruments
Process Control