AMC7812B Integrated Multichannel ADC and DAC for Analog Monitoring and Control | TI.com

AMC7812B (ACTIVE)

Integrated Multichannel ADC and DAC for Analog Monitoring and Control

 

Description

The AMC7812B 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 general-purpose inputs and outputs (GPIOs), two remote temperature sensor channels, and one local temperature sensor channel.

The device has an internal +2.5-V reference that can configure the DAC output voltage to a range of either 0 V to +5 V or 0 V to +12.5 V. An external reference can be used as well. Typical power dissipation is 95 mW. The AMC7812B is ideal for multichannel applications where board space, size, and low power are critical.

The device is available in either a QFN-64 or HTQFP-64 PowerPAD™ package and is fully specified from –40°C to +105°C and operational over the full –40°C to +125°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. Refer to www.ti.com/amc for more information.

Features

  • 12, 12-Bit DACs with Programmable Outputs:
    • 0 V to 5 V
    • 0 V to 12.5 V
  • DAC Shutdown to User-Defined Level
  • 12-Bit, 500-kSPS ADC with 16 Inputs:
    • 16 Single-Ended or
      Two Differential + 12 Single-Ended
  • Two Remote Temperature Sensors:
    • ±2°C Accuracy, –40°C to +150°C
  • One Internal Temperature Sensor:
    • ±2.5°C Accuracy, –40°C to +125°C
  • Input Out-of-Range Alarms
  • 2.5-V Internal Reference
  • Eight General-Purpose Inputs and Outputs
  • Configurable I2C-Compatible and SPI™ Interface with 5-V and 3-V Logic
  • Power-Down Mode
  • Wide Operating Temperature Range:
    –40°C to +125°C
  • Small Packages: 9-mm × 9-mm QFN-64, and 10-mm × 10-mm HTQFP-64

Parametrics

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Part number Order ADC input channels (#) ADC resolution (bits) DAC channels DAC: resolution (Bits) Temperature sensing GPIOs Interface Special function Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) ADC: sampling rate (KSPS) ADC: analog input range (Min) (V) ADC: analog input range (Max) (V) DAC: settling time (uS) DAC: output full scale (Min) (V) DAC: output full scale (Max) (V)
AMC7812B Order now 16     12     12     12     Local
Remote    
8     I2C
SPI    
Temp Sensor     -40 to 125     HTQFP | 64
VQFN | 64    
64HTQFP: 144 mm2: 12 x 12 (HTQFP | 64)
64VQFN: 81 mm2: 9 x 9 (VQFN | 64)    
500     -5     5     2     0     12.5    
AMC7812 Order now 16     12     12     12     Local
Remote    
8     SPI
I2C    
Temp Sensor     -40 to 105     HTQFP | 64
VQFN | 64    
64HTQFP: 144 mm2: 12 x 12 (HTQFP | 64)
64VQFN: 81 mm2: 9 x 9 (VQFN | 64)    
500     -5     5     2     0     12.5    
AMC7820 Order now 8     12     3     12     Remote     0     SPI     SDO     -40 to 85     TQFP | 48     48TQFP: 81 mm2: 9 x 9 (TQFP | 48)     100     0     5     3     0     2.5
5.0    
AMC7823 Order now 8     12     8