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AD5721RBRUZ-RL7

12-bit 4-20mA DAC, on-chip reference, SPI, TSSOP-24

9690

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Pieza del fabricante：

AD5721RBRUZ-RL7

Paquete：

TSSOP-24 (7.8x4.4mm)

Marca：
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Descripción

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The AD5721RBRUZ-RL7 from Analog Devices is a 12-bit 4-20mA current-loop DAC with on-chip 5V reference, fault detection, and SPI interface in TSSOP-24 for process control.

Especificaciones

Paquete TSSOP-24 (7.8×4.4mm)

Características

  • See datasheet for complete specifications
  • Industry-standard package

Aplicaciones

  • Industrial control
  • Consumer electronics
  • Communication equipment
  • Power management

The AD5721RBRUZ-RL7 from Analog Devices is a 12-bit 4-20mA current-loop DAC with on-chip 5V reference, fault detection, and SPI interface in TSSOP-24 for process control.

The AD5721RBRUZ-RL7 is a 12-bit 4-20mA loop-powered DAC from Analog Devices in TSSOP-24 with on-chip voltage reference. It is the 12-bit version of the AD5420 (16-bit), sharing the same architecture and pinout but with lower resolution and lower cost. The on-chip voltage reference is 2.5V +/-5ppm/C drift (the R suffix indicates on-chip reference), eliminating the need for an external reference. The 12-bit DAC core provides 4096 output levels across the 4-20mA range, giving 16mA/4096 = 3.9uA per LSB. The loop-powered architecture draws all operating current from the 4-20mA current loop: at 4mA (zero-scale), the device draws up to 3.9mA for internal operation; at 20mA (full-scale), the loop current provides abundant operating power. The SPI interface supports clock rates up to 50MHz for fast updates. The FAULT output indicates over-temperature, over-voltage, or open-loop conditions. The CLEAR pin asynchronously resets the output to 4mA for safety shutdown. The COMP1/COMP2 pins connect external 0.01uF capacitors for loop stability. The device achieves +/-0.05% FSR integral nonlinearity, corresponding to 8uA accuracy. The HART-compatible output impedance allows FSK digital signals to be superimposed on the 4-20mA loop for FieldComm Group HART protocol communication.

Pin Nombre Tipo Función
1 FALLO Salida Fault status output (open-drain, active LOW)
2 CLEAR Entrada Asynchronous clear (sets output to 4mA)
3 LATCH Entrada DAC latch (transparent when LOW)
4 SCLK Entrada SPI clock (up to 50MHz)
5 SYNC Entrada SPI chip select (active LOW)
6 SDI Entrada SPI data input
7 SDO Salida SPI data output (daisy-chain)
8 COMP2 Analógico Loop compensation capacitor 2
9 COMP1 Analógico Loop compensation capacitor 1
10-16 IOUT/RCV/AVDD/DVDD/GND Analog/Power Current output, supplies, ground
  • Industrial control
  • Consumer electronics
  • Communication equipment
  • Power management
    • Fabricante Número de pieza Paquete Notas
    Dispositivos analógicos AD5722RBRUZ-RL7 TSSOP-24 Dual 12-bit 4-20mA DAC
    Dispositivos analógicos AD5420AREZ-RL7 TSSOP-24 16-bit 4-20mA DAC, higher resolution
    Texas Instruments DAC8750ICPWR TSSOP-24 16-bit 4-20mA DAC with HART
    Dispositivos analógicos AD5721RBRZ-RL7 SOIC-16 Same device, different package
    Maxim MAX5216BGEE+T QSOP-16 16-bit voltage DAC, SPI
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