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AD7294BCPZRL
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AD7294BCPZRL

  • Category:ADC analog-to-digital converter
  • Product Name:12-bit monitoring and control system with integrated multichannel ADC, DAC, temperature sensor, and current sensing
  • Manufacturers:ANALOG DEVICES
  • Production Batch Number:12+
  • Encapsulation:64TQFP
  • Stock Status:There is stock
  • Stock Quantity:39000
  • Minimum order quantity: 1
  • Details:Click here to find pdf information for the AD7294BCPZRL
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  • Product introduction

The AD7294BCPZRL integrates a 12-bit monitoring and control system with a multichannel ADC, DAC, temperature sensor, and current sensing

The AD7294 is a monolithic solution that combines current, voltage, and temperature monitoring and controlAll the common functions you need. The device includes a low voltage (±200 mV) analog input sense amplifier for shunt resistor current monitoring, a temperature sense input, and four non-dedicated analog input channels that are multiplexed into a SAR analog-to-digital converter (ADC) with a conversion time of 3 μs. Both the digital-to-analog converter (DAC) and ADC are driven by a high accuracy internal reference voltage. Four 12-bit DACs provide the required outputs for voltage control. The AD7294 also includes limit registers for alarm functions. The device is based on ADI's high voltage DMOS process and meets its high voltage requirements: a current sense input of 59.4V and a DAC output voltage of up to 15V.

The AD7294 is a highly integrated solution that includes all the functions needed to accurately control power amplifiers in cellular base station applications. In such applications, the DAC provides 12-bit resolution to control the bias current of the power transistor; Thermal diode-based is also integratedTemperature sensorto compensate for temperature effects; The ADC monitors high-side current and temperature; All of these features are integrated in this 64-pin TQFP package with -40°C to +105°C operation.

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  • Cellular base stations

 

 

GSM、EDGE、UMTS、CDMA、TD-SCDMA、W-CDMA、WiMAX

 

  • Point-to-multipoint and other RF transmission systems
  • 12 V, 24 V, 48 V automotive applications
  • Industrial control
  • 2.5 V internal reference voltage
  • Two-wire fast mode I2 C interface
  • Temperature range: −40°C to +105°C
  • Package: 64-pin TQFP

12-bit SAR ADC with 3μs conversion time

  • 4 non-dedicated analog inputs
    Differential/single-ended
    VREF ,2×VREF Input range
  • 2 high-side current sense inputs
    Operating voltage range: 5 V to 59.4 V
    Maximum Gain Error: 0.5%
    Input range: ±200 mV
  • 2 external diode temperature sensor inputs
    Measuring range: −55°C to +150°C
    Accuracy: ± 2°C
    Series resistance cancellation
  • 1 internal temperature sensor
    Accuracy: ±2°C
  • Built-in monitoring
    Each channel is equipped with a min/max logger
    Programmable alert thresholds
    Programmable hysteresis
  • Four 12-bit monotonic 15 V DACs
    Range: 5 V, 0 V to 10 V bias
    Settling time: 8 μs
    Sink and source current: 10 mA
    Power-on reset (POR) to 0 V

 

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