AD7849CRZ Single-Channel Voltage Output D/A Converters by Analog Devices

Single-Channel Voltage Output D/A Converters
Status: Production
Series: AD7849
RoHS: Compliant
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The AD7849 is a 14-bit/16-bit serial input multiplying DAC. The DAC architecture ensures excellent differential linearity performance, and monotonicity is guaranteed to 14 bits for the A grade and to 16 bits for all other grades over the specified temperature ranges. During power-up and power-down sequences (when the supply voltages are changing), the VOUT pin is clamped to 0 V via a low impedance path. To prevent the output of A3 being shorted to 0 V during this time, transmission gate G1 is also opened. These conditions are maintained until the power supplies stabilize and a valid word is written to the DAC register. At this time, G2 opens and G1 closes. Both transmission gates are also externally controllable via the Reset In (RSTIN) control input. For instance, if the RSTIN input is driven from a battery supervisor chip, then on power-off or during a brown out, the RSTIN input will be driven low to open G1 and close G2. The DAC must be reloaded, with RSTIN high, to reenable the output. Conversely, the on-chip voltage detector output (RSTOUT) is also available to the user to control other parts of the system.The AD7849 has a versatile serial interface structure and can be controlled over three lines to facilitate opto-isolator

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Features

14-Bit/16-Bit Multiplying DAC
Guaranteed Monotonicity
Output Control on Power-Up and Power-Down Internal or External Control
Versatile Serial Interface
DAC Clears to 0 V in Both Unipolar and Bipolar Output Ranges

Alternative Descriptions

CONVERTER - DAC | Richardson RFPD

Frequently Asked Questions

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What category does AD7849CRZ fall under?

The AD7849CRZ is listed under Single-Channel Voltage Output D/A Converters.

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Is the AD7849CRZ RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

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