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Bias Generation and Level Setting Made Easy with Multiple Range, User Programmable Voltage Output D/A Converter

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Analog Devices, Inc. (NASDAQ:ADI) today introduced a single-chip, universal output D/A converter which combines a 16-bit data converter, +/-2 ppm/^0C 2.5-V reference, output buffer and gain scaling function on-chip. The innovative feature set of the AD5761R converter removes the need for external components, including gain setting precision resisters and amplifiers. In data acquisition and actuator control applications, this quickens and simplifies system design, enabling both unipolar and bipolar operation, through a software register update. Without affecting system design effort, cost or size, the new, flexible D/A converter facilitates design reuse across multi-functional end-equipment, while also enabling enhanced system functionality through the multiple output voltage ranges. Additionally, ADI announced two dual DC-DC regulators that power the new D/A converter with two independently regulated positive and negative rails for power sensitive applications. This simple two-chip solution enables users to generate bipolar 10-V outputs from only a single, low-voltage positive supply rail, which greatly simplifies system design and removes the need for routing multiple high-voltage rails.

Offering a 60 percent space savings over previous discrete solutions, the AD5761R’s single-chip 3-mm x 3-mm LFCSP standard package is ideal for designs within shrinking form factors, such as actuator control. The total unadjusted error specification – +/- 0.15% FSR max – is a true error including all on-chip circuitry and reference. This enables more accurate end systems and eliminates multiple system calibration routines in industrial environments. For a lower cost, less accurate option within the same series, a pin compatible 12-bit version and non-reference options are also available.

AD5761R Key Specifications:

  • 8 software-programmable output ranges with 5% over-range: 0 V to 5 V, 0 V to 10 V, 0 V to 16 V, 0 V to 20 V, +/-3 V, +/-5 V, +/-10 V, and -2.5 V to +7.5 V
  • Robust feature set including diagnostic, temperature, brownout and short circuit alert

Pricing and Availability

Product

Production
Availability

Option

Operating
Temperature
Range

Packaging

Price Each
In 1,000
Quantities

AD5761R NOW 16-bit

Reference on-chip

-40^0C to +125^0 16-lead TSSOP

16-lead LFCSP

$4.85
AD5721R NOW 12-bit

Reference on-chip

-40^0C to +125^0 16-lead TSSOP

16-lead LFCSP

$2.75
AD5761 NOW 16-bit -40^0C to +125^0 16-lead TSSOP

16-lead LFCSP

$4.00
AD5721 NOW 12-bit -40^0C to +125^0 16-lead TSSOP

16-lead LFCSP

$2.15
ADP5070 NOW 1.0A Boost Switch

0.6A Inverter Switch

-40^0C to 125^0 20-lead LFCSP $2.19
ADP5071 NOW 2.0A Boost Switch

1.2A Inverter Switch

-40^0C to 125^0 20-lead LFCSP $2.39

Complementary Products

Complementary low-noise reference products for the AD5761R include the ADR4525 and other products comprising the ADR45XX family. Complementary low-noise positive LDOs include the ADM7160 for 5-V systems, the ADP7118 for 12-V systems and the ADP7142 for 24-V systems. The ADP7182 is a complementary low-noise negative LDO for 5-V, 12-V and 24-V systems.

About Analog Devices

Innovation, performance, and excellence are the cultural pillars on which Analog Devices has built one of the longest standing, highest growth companies within the technology sector. Acknowledged industry-wide as the world leader in data conversion and signal conditioning technology, Analog Devices serves over 100,000 customers, representing virtually all types of electronic equipment. Celebrating over 40 years as a leading global manufacturer of high-performance integrated circuits used in analog and digital signal processing applications, Analog Devices is headquartered in Norwood, Massachusetts, with design and manufacturing facilities throughout the world. Analog Devices’ is included in the S&P 500 Index.

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Subscribe to Analog Dialogue, ADI’s monthly technical journal, at: http://www.analog.com/library/analogDialogue/

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