REF5010, REF5020
REF5025, REF5030
REF5040, REF5045, REF5050
www.ti.com .................................................................................................................................................. SBOS410C–JUNE 2007–REVISED DECEMBER 2008
Low-Noise, Very Low Drift, Precision
VOLTAGE REFERENCE
1
FEATURES
DESCRIPTION
2
•
LOW TEMPERATURE DRIFT:
The REF50xx is a family of low-noise, low-drift, very
high precision voltage references. These references
are capable of both sinking and sourcing, and are
very robust with regard to line and load changes.
–
–
High-Grade: 3ppm/°C (max)
Standard-Grade: 8ppm/°C (max)
•
HIGH ACCURACY:
Excellent temperature drift (3ppm/°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.
–
–
High-Grade: 0.05% (max)
Standard-Grade: 0.1% (max)
•
•
•
LOW NOISE: 3µVPP/V
HIGH OUTPUT CURRENT: ±10mA
TEMPERATURE RANGE: –40°C to +125°C
Each reference voltage is available in both standard-
and high-grade versions. They are offered in
MSOP-8(3) and SO-8 packages, and are specified
from –40°C to +125°C.
APPLICATIONS
•
•
•
•
•
•
16-BIT DATA ACQUISITION SYSTEMS
ATE EQUIPMENT
INDUSTRIAL PROCESS CONTROL
MEDICAL INSTRUMENTATION
OPTICAL CONTROL SYSTEMS
PRECISION INSTRUMENTATION
REF50xx Family
MODEL
REF5020
REF5025
REF5030
REF5040
REF5045
REF5050
REF5010
OUTPUT VOLTAGE
2.048V
2.5V
3.0V
4.096V
4.5V
5.0V
10.0V
+5V
+5V
Input
Signal
0V to 4V
R1
50W
DNC(1)
NC(2)
DNC(1)
VIN
1
2
3
4
8
7
6
5
VDD
OPA365
+IN
ADS8326
REF50xx
C1
1.2nF
TEMP
GND
VOUT
-IN
REF
GND
TRIM/NR
SO-8, MSOP-8(3)
REF5040
VIN
VOUT
+5V
CBYPASS
NOTES:(1) DNC = Do not connect.
(2) NC = No internal connection.
C2
1mF
22mF
GND
(3) Contact a TI sales representative for information
regarding MSOP-8 (DGK) package availability.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
All trademarks are the property of their respective owners.
UNLESS OTHERWISE NOTED this document contains
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007–2008, Texas Instruments Incorporated