EVAL-AD7944EBZ开发板套件编程器的评估板-模数转换器（ADC）规格书PDF中文资料

EVAL-AD7944EBZ属于开发板套件编程器的评估板-模数转换器（ADC）。由亚德诺半导体技术有限公司制造生产的EVAL-AD7944EBZ评估板 - 模数转换器（ADC）模数转换器 (ADC) 评估板是预装有元器件的电路板，用于提供特定 ADC 或器件工作实例。特定板上的 A/D 转换器数量从 3 到 32 不等，每秒采样率从 2.5 kHz 到 26 GHz 不等，输入电压范围从 0 到 8 Vp-p。

GENERAL DESCRIPTION

The AD79441 is a 14-bit, 2.5 MSPS successive approximation analog-to-digital converter (SAR ADC). It contains a low power, high speed, 14-bit sampling ADC, an internal conversion clock, an internal reference (and buffer), error correction circuits, and a versatile serial interface port. On the rising edge of CNV, the AD7944 samples an analog input, IN+, between 0 V and VREF with respect to a ground sense, IN−. The AD7944 features a very high sampling rate turbo mode (TURBO high) and a reduced power normal mode (TURBO low) for low power applications where the power is scaled with the throughput.

FEATURES

14-bit resolution with no missing codes

Throughput: 2.5 MSPS (TURBO high), 2.0 MSPS (TURBO low)

Low power dissipation

15.5 mW at 2.5 MSPS, with external reference

28 mW at 2.5 MSPS, with internal reference

INL: ±0.25 LSB typical, ±1.0 LSB maximum

SNR

84 dB, with on-chip reference

84.5 dB, with external reference

4.096 V internal reference: typical drift of ±10 ppm/°C

Pseudo differential analog input voltage range

0 V to VREF with VREF up to 5.0 V

Allows use of any input range

No pipeline delay

Logic interface: 1.8 V/2.5 V/2.7 V

Proprietary serial interface

SPI/QSPI/MICROWIRE/DSP compatible

Ability to daisy-chain multiple ADCs with busy indicator

20-lead, 4 mm × 4 mm LFCSP (QFN)

APPLICATIONS

Battery-powered equipment

Communications

ATE

Data acquisition systems

Medical instruments