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OPA365
ADS8326
REF5040
Input Signal,
0 V to 4 V
5 V
R
1
124 Ÿ
C
1
1 nF
IN
IN
V
DD
GNDREF
V
IN
V
OUT
GND
+5V
C
BYPASS
1 µF
C
2
22 µF
5 V
Copyright © 2016, Texas Instruments Incorporated
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Reference
Design
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
REF5010
,
REF5020
,
REF5025
,
REF5030
REF5040
,
REF5045
,
REF5050
SBOS410H –JUNE 2007–REVISED JUNE 2016
REF50xx
Low-Noise, Very Low Drift, Precision Voltage Reference
1
1 Features
1
• Low Temperature Drift:
– High-Grade: 3 ppm/°C (Max)
– Standard-Grade: 8 ppm/°C (Max)
• High Accuracy:
– High-Grade: 0.05% (Max)
– Standard-Grade: 0.1% (Max)
• Low Noise: 3 μV
PP
/V
• Excellent Long-Term Stability:
– 45 ppm/1000 hr (Typ) after 1000 Hours
• High-Output Current: ±10 mA
• Temperature Range: –40°C to 125°C
2 Applications
• Precision Data Acquisition Systems
• ATE Equipment
• Industrial Process Controls
• Medical Instrumentation
• Pressure and Temperature Transmitters
• Seismic monitoring systems
3 Description
The REF50xx is a family of low-noise, low-drift, very
high precision voltage references. These references
are capable of both sinking and sourcing current, and
have excellent line and load regulation.
Excellent temperature drift (3 ppm/°C) and high
accuracy (0.05%) are achieved using proprietary
design techniques. These features, combined with
very low noise, make the REF50xx family ideal for
use in high-precision data acquisition systems.
Each reference voltage is available in both high grade
(REF50xxIDGK and REF50xxID) and standard grade
(REF50xxAIDGK and REF50xxAID). The reference
voltages are offered in 8-pin VSSOP and SOIC
packages, and are specified from –40°C to 125°C.
Device Information
(1)
PART NUMBER PACKAGE BODY SIZE (NOM)
REF50xx
SOIC (8) 4.90 mm × 3.91 mm
VSSOP (8) 3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
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Simplified Schematic
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