AD5641

PRODUCTION

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

Data Sheet (Rev. D) Product Selection Table

Part Models: 4
1ku List Price: Starting From $2.10

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Overview

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

The AD5641, a member of the nanoDAC^® 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 nanoDAC 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

Part Models: 4
1ku List Price: Starting From $2.10

Documentation

Data Sheet 1

AD5641: 2.7 V to 5.5 V, <100 µA, 14-Bit nanoDAC, SPI Interface in LFCSP and SC70 Data Sheet (Rev.D) 11/09/2004

Technical Articles 1

Voltage Level Setting Requirements in RF Power Control Circuits 06/01/2004

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
AD5641AKSZ-500RL7	6-Lead SC70	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD5641AKSZ-REEL7	6-Lead SC70	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD5641BKSZ-500RL7	6-Lead SC70	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD5641BKSZ-REEL7	6-Lead SC70	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Feb 8, 2010 - 04_0080 Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland.
		PCN04_0080_Form Material_Report Reliability Report Reliability Report
AD5641AKSZ-500RL7	PRODUCTION
AD5641AKSZ-REEL7	PRODUCTION
AD5641BKSZ-500RL7	PRODUCTION
AD5641BKSZ-REEL7	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

Device Drivers 1

AD5446 IIO DAC Linux Driver

Can't find the software or driver you need?

Tools & Simulations

Precision DAC Error Budget Tool

The Precision DAC Error Budget Tool is a web application that calculates the DC Accuracy of precision DAC signal chains. It shows how the static errors accumulate throughout your signal chain to quickly evaluate the design tradeoffs. Calculations include the DC errors introduced by Voltage References, Operation Amplifiers and Precision DACs.

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