GENERAL DESCRIPTION

The AD7663 is a 16-bit, 250 kSPS, charge redistribution SAR, analog-to-digital converter that operates from a single 5 V power supply. It contains a high speed 16-bit sampling ADC, a resistor input scaler that allows various input ranges, an internal conversion clock, error correction circuits, and both serial and parallel system interface ports.

The AD7663 is hardware factory-calibrated and is comprehensively tested to ensure such ac parameters 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 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: 250 kSPS

INL: ±3 LSB Max (±0.0046 of Full Scale)

16-Bit Resolution with No Missing Codes

S/(N+D): 90 dB Typ @ 100 kHz

THD: –100 dB Typ @ 100 kHz

Analog Input Voltage Ranges

Bipolar: ±10 V, ±5 V, ±2.5 V

Unipolar: 0 V to 10 V, 0 V to 5 V, 0 V to 2.5 V

Both AC and DC Specifications

No Pipeline Delay

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

SPI®/QSPI™/MICROWIRE™/DSP Compatible

Single 5 V Supply Operation

Power Dissipation

35 mW Typical

15 μW @ 100 SPS

Power-Down Mode: 7 μW Max

Package: 48-Lead Quad Flatpack (LQFP)

Package: 48-Lead Chip Scale (LFCSP)

Pin-to-Pin Compatible with the AD7660/AD7664/AD7665

APPLICATIONS

Data Acquisition

Motor Control

Communication

Instrumentation

Spectrum Analysis

Medical Instruments

Process Control

AD7677属于集成电路（IC） > 模数转换器（ADC）。亚德诺半导体技术有限公司制造生产的AD7677模数转换器（ADC）模数转换器（ADC、A/D 或 A 转 D）对模拟信号进行采样，例如由麦克风采集的声音或传感器的输出，然后将其转换为数字信号。一般来说，数字输出是二进制补码二进制数，与输入成比例。输入类型可能是差分、伪差分或单端输入。模数转换器可按照位数、采样率、输入数、接口、转换器数和架构（例如自适应增量、双斜率、折叠、流水线、SAR、三角积分、两步式）进行选择。