AMC7820 Integrated Multichannel ADC and DAC for Analog Monitoring and Control | TI.com

AMC7820 (ACTIVE) Integrated Multichannel ADC and DAC for Analog Monitoring and Control

Integrated Multichannel ADC and DAC for Analog Monitoring and Control - AMC7820
Datasheet
 

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.

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

SPI is a trademark of Motorola.

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)
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    
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    
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