VRE405AD(2010) Просмотр технического описания (PDF) - Cirrus Logic
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VRE405AD Datasheet PDF : 4 Pages
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VRVER4E04055
Precision Dual Voltage Reference
FEATURES
♦ ±5 V Output, ± 0.8 mV
♦ Temperature Drift: 1.0 ppm/ºC
♦ Low Noise: 3 μVP-P (0.1-10hz)
♦ Tracking Error: 0.3 mV
♦ 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 ±0.8
mV initial accuracy and a temperature coefficient of
1.0 ppm/°C. This improvement in accuracy is made
possible by a unique, patented multipoint laser com-
pensation technique.
Another key feature of this reference is the 0.3 mV
tracking error between the positive and negative out-
put voltages over the operating temperature range.
This is extremely important in high performance sys-
tems 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 ±0.8
1.0
VRE405AD ±0.8
1.0
VRE405BS ±1.0
2.0
VRE405BD ±1.0
2.0
VRE405CS ±1.1
2.2
VRE405CD ±1.1
2.2
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
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Copyright © Cirrus Logic, Inc. 20109
(All Rights Reserved)
MAY 20101
APEX − VRE405DSREVC
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