AD5641 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AD5641
Manufacturer

ADI
ChipWorker Part#

CW389441766
Description

2.7V to 5.5V, <100µA, 14Bit _nano_DAC®, SPI Interface in LFCSP and SC70
Documentation

Datasheet

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AD5641 Specifications

Attribute	Attribute Value

Part Number	AD5641
Manufacturer	ADI
ChipWorker Part#	CW389441766
Documentation	Datasheet
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Product Lifecycle Status	Active

Product Description

Product Details
The AD5641, a member of the _nano_DAC® family, is a single, 14-bit, buffered, voltage-out DAC that operates from a single 2.7 V to 5.5 V supply, typically consuming 75 μA at 5 V. The part comes in a tiny LFCSP and SC70 packages. Its on-chip precision output amplifier allows rail-to-rail output swing to be achieved. The AD5641 uses a versatile 3-wire serial interface that operates at clock rates up to 30 MHz and is compatible with SPI®, QSPI™, MICROWIRE™, and DSP interface standards. The reference for AD5641 is derived from the power supply inputs and, therefore, gives the widest dynamic output range. The part incorporates a power-on reset circuit, which ensures that the DAC output powers up to 0 V and remains there until a valid write to the device takes place.
The AD5641 contains a power-down feature that reduces current consumption typically to 0.2 μA at 3 V, and provides software-selectable output loads while in power-down mode. The part is put into power-down mode over the serial interface. The low power consumption of the part in normal operation makes it ideally suited to portable battery-operated equipment. The combination of small package and low power makes this _nano_DAC device ideal for level-setting requirements such as generating bias or control voltages in space-constrained and power-sensitive applications.
**Product Highlights**
Available in a space-saving, 6-lead LFCSP and SC70 packages.
Low power, single-supply operation. The AD5641 operates from a single 2.7 V to 5.5 V supply and with a maximum current consumption of 100 μA, making it ideal for battery-powered applications.
The on-chip output buffer amplifier allows the output of the DAC to swing rail-to-rail with a typical slew rate of 0.5 V/μs.
Reference derived from the power supply.
High speed serial interface with clock speeds up to 30 MHz. Designed for very low power consumption. The interface powers up only during a write cycle.
Power-down capability. When powered down, the DAC typically consumes 0.2 μA at 3 V.
Power-on reset with brownout detection.
**Applications**
Voltage level setting
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
Programmable attenuators
### Features and Benefits
6-lead LFCSP and SC70 packages
Micropower operation: 100 μA maximum at 5 V
Power-down to typically 0.2 μA at 3 V
Single 14-bit DAC
B version: ±4 LSB INL
A version: ±16 LSB INL
2.7 V to 5.5 V power supply
Guaranteed monotonic by design
Power-on reset to 0 V with brownout detection
3 power-down functions
Low power serial interface with Schmitt-triggered inputs
On-chip output buffer amplifier, rail-to-rail operation
SYNC interrupt facility

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