AMC7812 Datasheet, PDF (1/92 Pages) Texas Instruments – 12-Bit ANALOG MONITORING AND CONTROL SOLUTION with Multichannel ADC, DACs, and Temperature Sensors

AMC7812
www.ti.com
SBAS513D – JANUARY 2011 – REVISED OCTOBER 2012
12-Bit ANALOG MONITORING AND CONTROL SOLUTION
with Multichannel ADC, DACs, and Temperature Sensors
Check for Samples: AMC7812
FEATURES
1
•2345 12, 12-Bit DACs with Programmable Outputs:
◇ 0V to 5V
◇ 0V to 12.5V
• DAC Shutdown to User-Defined Level
• 12-Bit, 500kSPS ADC with 16 Inputs:
◇ 16 Single-Ended or
◇ Two Differential + 12 Single-Ended
• Two Remote Temperature Sensors:
◇ –40°C to +150°C, ±2°C Accuracy
• One Internal Temperature Sensor:
◇ –40°C to +125°C, ±2.5°C Accuracy
• Input Out-of-Range Alarms
• 2.5V Internal Reference
• Eight General-Purpose Input/Outputs
• Configurable I²C™-Compatible/ SPI™ Interface
with 5V/3V Logic
• Power-Down Mode
• Wide Temperature Range:
◇ –40°C to +105°C
• Small Packages: 9mm x 9mm QFN-64, and
10mm x 10mm HTQFP-64
APPLICATIONS
• RF Power Amplifier Control in Base Stations
• Test and Measurement
• Industrial Control
• General Analog Monitoring and Control
DESCRIPTION
The AMC7812 is a complete analog monitoring and
control solution that includes a 16-channel, 12-bit
analog-to-digital converter (ADC), twelve 12-bit
digital-to-analog converters (DACs), eight GPIOs, and
two remote/one local temperature sensor channels.
The AMC7812 has an internal reference of +2.5V that
can configure the DAC output voltage to a range of
either 0V to +5V or 0V to +12.5V. An external
reference can be used as well. Typical power
dissipation is 95mW. The AMC7812 is ideal for
multichannel applications where board space, size,
and low power are critical.
The AMC7812 is available in either a 64-lead QFN or
HTQFP-64 PowerPAD™ package and is fully
specified over the –40°C to +105°C temperature
range.
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.
ADC-REF-IN/CMP
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH13
CH14
CH15
D1+ GPIO-5
D1- GPIO-4
D2+ GPIO-7
D2- GPIO-6
GPIO-3
GPIO-0
ALARM
AMC7812
Reference
(2.5V)
ADC
Trigger
Control/Limits/Status
Registers
Remote
Temperature
Sensor
Driver
Local
Temperature
Sensor
GPIO Controller
Out-of-Range
Alarms
DAC-0
DAC-11
LOAD-DAC
DACs Clear Logic
REF-OUT
REF-DAC
DAC0-OUT
DAC1-OUT
DAC2-OUT
DAC3-OUT
DAC4-OUT
DAC5-OUT
DAC6-OUT
DAC7-OUT
DAC8-OUT
DAC9-OUT
DAC10-OUT
DAC11-OUT
DAC-CLR-0
DAC-CLR-1
RESET
DAV
Control
Logic
Serial Interface Register and Control
(SPI/I²C)
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
SPI, QSPI are trademarks of Motorola, Inc.
2
I²C is a trademark of NXP Semiconductors.
3
MICROWIRE is a trademark of National Semiconductor.
4
All other trademarks are the property of their respective owners.
5
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011–2012, Texas Instruments Incorporated