AD5666SRU-EP-2RL7
DAC 4CH Resistor-String 16Bit 14Pin TSSOP T/R
Product Details
The AD5666 is a low power, quad, 16-bit, buffered voltage-output DAC. The part operates from a single 2.7 V to 5.5 V supply and is guaranteed monotonic by design.
The AD5666 has an on-chip reference with an internal gain of 2. The AD5666-1 has a 1.25 V 5 ppm/°C reference, giving a full-scale output of 2.5 V; the AD5666-2 has a 2.5 V 5 ppm/°C reference, giving a full-scale output of 5 V. The on-board reference is off at power-up, allowing the use of an external reference. The internal reference is turned on by writing to the DAC.
The part incorporates a power-on reset circuit that ensures that the DAC output powers up to 0 V POR pin low or to midscale POR pin high and remains powered up at this level until a valid write takes place. The part contains a power-down feature that reduces the current consumption of the device to 400 nA at 5 V and provides software-selectable output loads while in power-down mode for any or all DAC channels.
The outputs of all DACs can be updated simultaneously using the LDAC function, with the added functionality of user-select-able DAC channels to simultaneously update. There is also an asynchronous CLR that clears all DACs to a software-selectable code—0 V, midscale, or full scale.
The AD5666 utilizes a versatile 3-wire serial interface that operates at clock rates of up to 50 MHz and is compatible with standard SPI®, QSPI™, MICROWIRE™, and DSP interface standards. The on-chip precision output amplifier enables rail-to-rail output swing.
The AD5666-EP supports defense and aerospace applications AQEC
**Product Highlights**
1. Quad, 16-bit DAC.
2. On-chip 1.25 V/2.5 V, 5 ppm/°C reference.
3. Available in 14-lead TSSOP.
4. Selectable power-on reset to 0 V or midscale.
5. Power-down capability. When powered down, the DAC typically consumes 200 nA at 3 V and 400 nA at 5 V.
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**Applications**
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- Process control
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- Data acquisition systems
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- Portable battery-powered instruments
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- Digital gain and offset adjustment
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- Programmable voltage and current sources
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- Programmable attenuators
### Features and Benefits
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- Low power quad 16-bit DAC
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- 14-lead TSSOP
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- On-chip 1.25 V/2.5 V, 5 ppm/°C reference
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- Power down to 400 nA at 5 V, 200 nA at 3 V
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- 2.7 V to 5.5 V power supply
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- Guaranteed monotonic by design
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- Power-on reset to zero scale or midscale
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- 3 power-down functions
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- See data sheet for additional features
AD5666-EP supports defense and aerospace applications AQEC standard
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- Download AD5666-EP Data Sheet
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- Military temperature range −55°C to +125°C
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- Controlled manufacturing baseline
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- One assembly/test site
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- One fabrication site
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- Enhanced product change notification
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- Qualification data available on request
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- V62/14626 DSCC Drawing Number