AD5672RBCPZ-REEL7

数模转换器- DAC 12-bit octal SPI nanoDAC with ref

Product Details

The AD5672R/AD5676R are low power, octal, 12-/16-bit buffered voltage output digital-to-analog converters DACs. They include a 2.5 V, 2 ppm/°C internal reference enabled by default and a gain select pin giving a full-scale output of 2.5 V gain = 1 or 5 V gain = 2. All devices operate from a single 2.7 V to 5.5 V supply and are guaranteed monotonic by design. The AD5672R/AD5676R are available in a 20-lead TSSOP package.

The AD5672R/AD5676R also incorporate a power-on reset circuit and a RSTSEL pin that ensures that the DAC outputs power up to zero scale or midscale and remain there until a valid write takes place. Each part contains a per channel power-down feature that reduces the current consumption of the device to 2.5 µA while in power-down mode.

The AD5672R/AD5676R employ a versatile serial peripheral interface SPI that operates at clock rates up to 50 MHz, and all devices contain a VLOGIC pin intended for 1.8 V/3 V/5 V logic.

**Product Highlights**

1. High Relative Accuracy INL.

AD5672R 12-bit: ±0.1 LSB maximum

AD5676R 16-bit: ±3 LSB maximum

2. Low Drift 2.5 V On-Chip Reference.

**Applications**

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Optical transceivers

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Base-station power amplifiers

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Process control programmable logic 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 Performance

High relative accuracy INL:

± 3 LSB maximum at 16 bits

Total unadjusted error TUE: ± 0.14% of FSR maximum

Offset error: ±1.6 mV maximum

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Wide Operating Ranges

−40°C to +125°C temperature range

2.7 V to 5.5 V power supply

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Easy Implementation

User selectable gain of 1 or 2 GAIN pin

Reset to zero scale or midscale RSTSEL pin

1.8 V logic compatibility

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50 MHz SPI with readback or daisy chain

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See datasheet for additional features