1.0 V Precision Low Noise
Shunt Voltage Reference
ADR510
FEATURES
PIN CONFIGURATION
Precision 1.000 V voltage reference
Ultracompact 3 mm × 3 mm SOT-23 package
No external capacitor required
Low output noise: 4 μV p-p (0.1 Hz to 10 Hz)
Initial accuracy: ±0.35% maximum
Temperature coefficient: 70 ppm/°C maximum
Operating current range: 100 μA to 10 mA
Output impedance: 0.3 Ω maximum
Temperature range: −40°C to +85°C
ADR510
V+ 1
3
TRIM/NC
TOP VIEW
(Not to Scale)
03270-001
V– 2
NC = NO CONNECT
Figure 1. 3-Lead SOT-23-3
APPLICATIONS
Precision data acquisition systems
Battery-powered equipment
Cellular phone
Notebook computer
PDA
GPS
3 V/5 V, 8-/12-bit data converters
Portable medical instruments
Industrial process control systems
Precision instruments
GENERAL DESCRIPTION
VS
Designed for space critical applications, the ADR510 is a low
voltage (1.000 V), precision shunt-mode voltage reference in an
ultracompact (3 mm × 3 mm) SOT-23-3 package. The ADR510
features low temperature drift (70 ppm/°C), high accuracy
(±0.35%), and ultralow noise (4 μV p-p) performance.
A TRIM terminal is available on the ADR510 to provide
adjustment of the output voltage over ±0.5% without affecting
the temperature coefficient of the device. This feature provides
users with the flexibility to trim out any system errors.
RBIAS
IL
VOUT = 1.0V
ADR510
IQ
COUT
(OPTIONAL)
RBIAS =
VS – VOUT
IL + IQ
03270-002
The ADR510 advanced design eliminates the need for an external
capacitor, yet it is stable with any capacitive load. The minimum
operating current increases from 100 μA to a maximum of 10 mA.
This low operating current and ease of use make the ADR510
ideally suited for handheld battery-powered applications.
IL + IQ
Figure 2. Typical Operating Circuit
Table 1. ADR510
Part
ADR510A
Output
Voltage, VOUT
1.000 V
Initial Accuracy
3.5 mV
0.35%
Temperature
Coefficient
70 ppm/°C
Rev. B
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responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
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