AMC7820Y集成电路（IC）的ADC/DAC-特殊用途规格书PDF中文资料

AMC7820Y属于集成电路（IC）的ADC/DAC-特殊用途。由德州仪器制造生产的AMC7820YADC/DAC - 特殊用途该产品族中的产品可用于模拟和数字表示的信息转换，适用于特定用例，或集成了通用数据转换器中不常见的其他功能。例如针对超声或汽车雷达应用集成了低噪声放大器和可变增益级的器件、注重音频和视频的产品、在段码式显示器上集成显示测量值功能的器件、集成输入输出电气隔离的器件等。

FEATURES

100kHz SAMPLING RATE 12-BIT ADC

8 ANALOG INPUT CHANNELS

THREE 12-BIT DACS

NINE OPERATIONAL AMPLIFIERS

THERMISTOR CURRENT SOURCE

INTERNAL 2.5V REFERENCE

SPI SERIAL INTERFACE

3V LOGIC COMPATIBLE

SINGLE +5V SUPPLY

LOW POWER: 40mW

TQFP-48 PACKAGE

APPLICATIONS

CW LASER AND PUMP LASER CURRENT

CONTROL IN DWDM

TEC COOLER CURRENT CONTROL IN DWDM

OPTICAL POWER MONITORING

TUNABLE LASER

DESCRIPTION

The AMC7820 is a complete analog monitoring and control

circuit that includes an 8-channel, 12-bit Analog-to-Digital

Converter (ADC), three 12-bit Digital-to-Analog Converters

(DACs), nine operational amplifiers, a thermistor current source,

an internal +2.5V reference, and an SPI™ serial interface.

External reference may be applied. Typical power dissipation

is 40mW. For the ADC, the unbuffered analog input range is

0V to +5.0V, and the buffered analog common-mode input

range is 0V to +3.8V. For the DACs, the analog output range

is 0V to +2.5V or 0V to +5.0V.

The AMC7820 is ideal for multichannel applications where

low power and small size are critical. The AMC7820 is

available in a TQFP-48 package and is fully specified and

tested over the –40°C to +85°C temperature range.

SPI is a trademark of Motorola.