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Part Number: AD584

Function: 40V, 600mW, pin programmable precision voltage reference

Package: TO-99, DIP 8 Pin type

Image and Pinouts:

AD584 datasheet

Description

The AD584 is an8-terminal precision voltage reference offering pin programmable selection of four popular output voltages: 10.000 V, 7.500 V, 5.000 V and 2.500 V. Other output voltages, above, below, or between the four standard outputs, are available by the addition of external resistors.

The input voltage can vary between 4.5 V and 30 V. Laser wafer trimming (LWT) is used to adjust the pin programmable output levels and temperature coefficients, resulting in the most flexible high precision voltage reference available in monolithic form.

Features

1. Four programmable output voltages : 10.000 V, 7.500 V, 5.000 V, and 2.500 V

2. Laser-trimmed to high accuracies

3. No external components required

4. Trimmed temperature coefficient
(1) 15 ppm/°C maximum, 0°C to 70°C (AD584K)
(2) 15 ppm/°C maximum, −55°C to +125°C (AD584T)

5. Zero output strobe terminal provided

6. 2-terminal negative reference: capability (5 V and above)

7. Output sources or sinks current

8. Low quiescent current: 1.0 mA maximum

9. 10 mA current output capability

Design Notes

Laser trimming ensures high initial accuracy and long-term stability
Temperature coefficient must be considered in precision measurement systems
Output can be fine-tuned using external resistors for non-standard voltages
Strobe pin allows output disabling, useful in multiplexed systems
Low quiescent current makes it suitable for portable instrumentation
Proper PCB layout (guard rings, low-noise routing) is critical for maintaining precision

How to Choose This Part

Select when multiple precision reference voltages are required
Evaluate temperature range and stability requirements
Ensure supply voltage compatibility (≥ output voltage + margin)
Compare noise and drift performance with modern references
Consider newer low-noise references for ultra-high precision applications

Applications

Precision instrumentation
Industrial measurement systems
Laboratory calibration equipment
Data acquisition and control systems
Analog signal processing circuits

Alternative / Equivalent Products

REF02 – 5V precision reference
ADR01 – Low noise precision reference
LM4040 – Shunt voltage reference
LT1021 – Ultra precision reference
REF5050 – Modern precision reference IC

Other data sheets are available within the file: AD584J, AD584JH, AD584JN, AD584JNZ

AD584 Datasheet PDF Download

The AD8420 is a micropower, low-cost instrumentation amplifier designed for precision amplification of small differential signals in the presence of large common-mode voltages.

Function: Wide Supply Range, Micropower, Rail-to-Rail Instrumentation Amplifier

Package: 8-lead MSOP type

Manufacturer: Analog Devices

Pinouts:

AD8420 datasheet

Description

The AD8420 is a low cost, micropower, wide supply range, instrumentation amplifier with a rail-to-rail output and a novel architecture that allows for extremely flexible design. It is optimized to amplify small differential voltages in the presence of large common-mode signals. The AD8420 is based on an indirect current feedback architecturethat gives it an excellent input common-mode range. Unlike conventional instrumentation amplifiers, the AD8420can easily amplify signals at or even slightly below ground without requiring dual supplies. The AD8420 has rail-to-rail output, and the output voltage swing is completely independent of the input common mode voltage.

It utilizes an indirect current feedback architecture, enabling a wide input common-mode range and allowing operation even when input signals are at or slightly below ground on a single supply. With rail-to-rail output and very low power consumption, it is well suited for battery-powered and high-accuracy sensing applications.