LINE REGULATION: 6ppm/V Typ.
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OUTPUT TRIM CAPABILITY
FIGURE 1
N.C.
+V
IN
TEMP
GND
1
2
3
4
8
NOISE
REF. GND
V
OUT
TRIM
PIN CONFIGURATION
VRE302
7
6
5
TOP
VIEW
DESCRIPTION
The VRE302 is a low cost, high precision 2.5V
reference. Packaged in the industry standard 8
pin DIP, the device is ideal for upgrading systems
that use lower performance references.
The device provides ultrastable +2.500V output
with 鹵0.2500 mV (.01%) initial accuracy and a
temperature coefficient of 0.6 ppm/擄C.
This
improvement in accuracy is made possible by a
unique, patented multipoint laser compensation
technique developed by Thaler Corporation.
Significant improvements have been made in
other performance parameters as well, including
initial accuracy, warm-up drift, line regulation, and
long-term stability, making the VRE302 series the
most accurate reference available in the standard
8 pin DIP package.
For enhanced performance, the VRE302 has an
external trim option for users who want less than
0.01% initial error. A reference ground pin is
provided to eliminate socket contact resistance
errors.
The VRE302 is recommended for use as a
reference for 14, 16, or 18 bit D/A converters
which require an external precision reference.
The device is also ideal for calibrating scale factor
on high resolution A/D converters. The VRE302
offers superior performance over monolithic
references.
SELECTION GUIDE
Initial
Error
mV
0.25
0.40
0.50
0.25
0.40
0.50
Model
VRE302A
VRE302B
VRE302C
VRE302J
VRE302K
VRE302L
Temp.
Coeff.
ppm/擄C
0.6
1.0
2.0
0.6
1.0
2.0
Temp.
Range
擄C
0擄C to +70擄C
0擄C to +70擄C
0擄C to +70擄C
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
For package option add D for DIP or S for Surface Mount
to end of model number.
VRE302DS REV. F MAY 2001
1
2
3
4
5
