AMC7832IPAPRG4.B中文资料德州仪器数据手册PDF规格书

1 Features

1• Twelve Monotonic 12-Bit DACs

– Selectable Ranges: 0 to +5-V, 0 to +10-V and

-10 to 0-V

– High Current Drive Capability: up to ±15-mA

– Selectable Clamp Voltage

• One 12-Bit SAR ADC

– 17 External Analog Inputs

– 12 Bipolar Inputs: -12.5-V to +12.5-V

Range

– 5 High Precision Inputs: 0 to +5-V Range

– Programmable Out-of-Range Alarms

• Internal +2.5-V Reference in•

Internal Temperature Sensor

– -40°C to +125°C Operation

– ±2.5°C Accuracy

• Eight General Purpose I/O Ports (GPIOs)

• Low Power SPI Compatible Serial Interface

– 4-Wire Mode, +1.8-V to +5.5-V Operation

• Operating Temperature Range: -40°C to +125°C

• Available in 64-Terminal HTQFP PowerPAD

Package

2 Applications

• Communications Infrastructure:

– Cellular Base Stations

– Microwave Backhaul

– Optical Networks

• General Purpose Monitor & Control

• Data Acquisition Systems

3 Description

The AMC7832 is a highly integrated, low-power,

analog monitoring and control solution that includes a 17-channel, 12-bit analog-to-digital converter (ADC)

with programmable alarms, twelve 12-bit digital-to-

analog converters (DACs) with output ranges of either

0 to +5-V, 0 to +10-V or -10 to 0-V, eight GPIOs,

internal reference and a local temperature sensor channel. The AMC7832 high level of integration

significantly reduces component count and simplifies

closed-loop system designs.

The AMC7832 is ideal for multichannel applications

where board space, size, and low power are critical.

The AMC7832’s low power, high-integration and wide

operating temperature range make it an ideal all-in•

one, low-cost, bias control circuit for the power amplifiers (PA) found in multi-channel RF

communication systems. The flexible DAC output

ranges allow the device to be used as a biasing

solution for a large variety of transistor technologies

such as LDMOS, GaAs and GaN. The AMC7832

feature set is similarly beneficial in general purpose

monitor and control systems.

For applications that require a different channel

count, additional features, or converter resolutions,

Texas Instruments offers a complete family of Analog

Monitor and Control (AMC) products. Visit

http://www.ti.com/amc for more information.