AD5685RBRUZ-RL7

四， 16位/ 14位/ 12位属于nanoDAC Quad, 16-/14-/12-Bit nanoDAC

Product Details

The AD5685R _nano_DAC+™ is a quad, 14-bit, rail-to-rail, voltage output DAC. The device includes a 2.5V, 2ppm/˚C internal reference enabled by default and a gain select pin giving a full-scale output of 2.5V gain=1 or 5V gain=2.

The device operates from a single 2.7 V to 5.5 V supply, is guaranteed monotonic by design and exhibits less than 0.1% FSR gain error and 1.5mV offset error performance. The device is available in a 3mm X 3mm LFCSP and a TSSOP package.

The AD5685R also incorporates a power-on-reset circuit and a RSTSEL pin that ensures the DAC outputs power up to zero-scale or midscale, and remain there until a valid write takes place. Each device contains a per-channel power-down feature that reduces the current consumption of the device to 4 uA at 3 V while in power-down mode.

The AD5685R employs a versatile SPI interface that operates at clock rates up to 50 MHz and includes a VLOGIC pin intended for 1.8V/3V/5V logic.

**Product Highlights**

1. High Relative Accuracy: AD5685R 14-bit: ±1LSB INL max

2. Low drift on-chip reference: 2.5V, 2ppm/°C temperature drift

3. Two package options: 3mm × 3mm 16-lead LFCSP or 16-lead TSSOP

**Applications**

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Optical transceivers

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Base-station power amplifers

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Process control PLC I/O cards

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Industrial automation

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Data acquisition systems

### Features and Benefits

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High relative accuracy INL: ±2 LSB maximum at 16 bits

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Low drift 2.5 V reference: 2 ppm/°C typical

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Tiny package: 3 mm × 3 mm, 16-lead LFCSP

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Total unadjusted error TUE: ±0.1% of FSR maximum

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Offset error: ±1.5 mV maximum

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Gain error: ±0.1% of FSR maximum

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High drive capability: 20 mA, 0.5 V from supply rails

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User selectable gain of 1 or 2 GAIN pin

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Reset to zero scale or midscale RSTSEL pin

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1.8 V logic compatibility

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50 MHz SPI with readback or daisy chain

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Low glitch: 0.5 nV-sec

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Low power: 3.3 mW at 3 V

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2.7 V to 5.5 V power supply

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−40°C to +105°C temperature range