VRE405 Datasheet, PDF (1/5 Pages) Cirrus Logic – Precision Dual Voltage Reference

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VRVER4E04055
Precision Dual Voltage Reference
Features
♦ ±5 V Output, ± 0.5 mV (.01%)
♦ Temperature Drift: 0.6 ppm/ºC
♦ Low Noise: 3 μV_P-P (0.1-10hz)
♦ Tracking Error: 0.3 mV Max.
♦ Excellent Line Regulation: 6 ppm/V Typical
♦ Surface Mount and DIP Package Options
Applications
The VRE405 is recommended for use as a refer-
ence for high precision D/A and A/D converters
which require an external precision reference.
The device is ideal for calibrating scale factor on
high resolution A/D converters. The VRE405 of-
fers superior performance over monolithic refer-
ences.
DESCRIPTION
The VRE405 is a low cost, high precision, ±5 V refer-
ence. Available in 14-pin DIP or SMT packages, the
device is ideal for new designs that need a high perfor-
mance reference.
The device provides ultrastable ±5 V output with ±0.5
mV (.01%) initial accuracy and a temperature coeffi-
cient of 0.6 ppm/°C. This improvement in accuracy is
made possible by a unique, patented multipoint laser
compensation technique.
Another key feature of this reference is the 0.3 mV
maximum tracking error between the positive and neg-
ative output voltages over the operating temperature
range. This is extremely important in high performance
systems for reducing overall system errors.
For designs which use the DIP package in a socket,
there is a reference ground pin to eliminate the refer-
ence ground errors.
Figure 1. BLOCK DIAGRAM
Selection Guide
Model
Initial
Error
(mV)
Temp.
Coeff.
(ppm/ºC)
VRE405AS ±0.5
0.6
VRE405AD ±0.5
0.6
VRE405BS ±0.8
1.0
VRE405BD ±0.8
1.0
VRE405CS ±1.0
2.0
VRE405CD ±1.0
2.0
Temp.
Range
(ºC)
0ºC to +70ºC
0ºC to +70ºC
0ºC to +70ºC
0ºC to +70ºC
0ºC to +70ºC
0ºC to +70ºC
Package
Options
SMT14 (GE)
DIP14 (KE)
SMT14 (GE)
DIP14 (KE)
SMT14 (GE)
DIP14 (KE)
14-pin Surface Mount
Package Style GE
14-pin DIP
Package Style KE
VRE405DS
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 2009
(All Rights Reserved)
MAR 2009
APEX − VRE405DSREVB