| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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10,000 pcs
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10000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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2,040 pcs
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2040 pcs | On Request | 1 | On Request | On Request | 24+ | On Request | On Request | |
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30 pcs
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30 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The AD421BRZ is a 16-bit, loop-powered digital-to-analog converter (DAC) from Analog Devices that outputs a 4 mA to 20 mA current signal. It is designed for smart industrial control transmitters and process control loops. The device integrates a 16-bit sigma-delta DAC, precision references, and a regulated output voltage.
Key specifications include 16-bit resolution and monotonicity, integral nonlinearity of 0.01% typical, and a settling time of 8 ms to ±0.1% of full scale. The quiescent current is 750 µA maximum. The DAC is HART protocol compatible and supports a serial data interface (MICROWIRE™). It is loop-powered, meaning it derives power from the current loop itself.
The AD421BRZ provides a regulated output voltage that is pin-selectable to +3V, +3.3V, or +5V, which can power external circuitry. On-chip references offer 1.25V and 2.5V outputs. The device operates from a single supply and is housed in a 16-SOIC surface mount package with an operating temperature range of -40°C to +85°C.
16 bits.
4 mA to 20 mA.
Yes.
-40°C to 85°C.
16-SOIC (0.295", 7.50mm Width).
8 ms to ±0.1% of full scale.
The AD421BRZ operates from a single supply and provides a regulated output voltage selectable to 3V, 3.3V, or 5V.