AMC7836 High-Density, 12-Bit Analog Monitor and Control Solution, Bipolar DAC | TI.com

AMC7836 (ACTIVE)

High-Density, 12-Bit Analog Monitor and Control Solution, Bipolar DAC

 

Description

The AMC7836 is a highly-integrated, low-power, analog monitoring and control solution. The device includes a 21-channel, 12-bit analog-to-digital converter (ADC), sixteen 12-bit digital-to-analog converters (DACs) with programmable output ranges, eight GPIOs, an internal reference, and a local temperature-sensor channel. The high level of integration significantly reduces component count and simplifies closed-loop system designs making it ideal for multichannel applications where board space, size, and low-power are critical.

The low-power, very high-integration and wide operating-temperature range of the device make it suitable as an all-in-one, low-cost, bias-control circuit for the power amplifiers (PA) found in multichannel 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 AMC7836 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. For more information, go to www.ti.com/amc.

Features

  • 16 Monotonic 12-Bit DACs
    • Selectable Ranges: –10 V to 0 V, –5 V to 0 V, 0 V to 5 V, and 0 V to 10 V
    • High Current Drive Capability: up to ±15 mA
    • Auto-Range Detector
    • Selectable Clamp Voltage
  • 12-Bit SAR ADC
    • 21 External Analog Inputs
      • 16 Bipolar Inputs: –12.5 V to +12.5 V
      • 5 High-Precision Inputs: 0 V to 5 V
    • Programmable Out-of-Range Alarms
  • Internal 2.5-V Reference
  • 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: –40°C to +125°C
  • Available in 64-Pin HTQFP PowerPAD™ IC Package

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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)
AMC7836 Order now 21     12     16     12     Local     8     SPI     8 GPIOs
Internal Temp Sensor    
-40 to 125     HTQFP | 64     64HTQFP: 144 mm2: 12 x 12 (HTQFP | 64)     87     -12.5     12.5     10     -10     10    
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    
AMC7823 Order now 8     12     8     12     Local
Remote    
6     SPI     Current Source up to 10 mA     -40 to 85     WQFN | 40     40WQFN: 36 mm2: 6 x 6 (WQFN | 40)     200     0     5     2     0     5    
AMC7832 Order now 17     12     12     12