VRE3050A ETC [List of Unclassifed Manufacturers], VRE3050A Datasheet

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VRE3050A

Manufacturer Part Number
VRE3050A
Description
VRE3050 Low Cost Precision Reference
Manufacturer
ETC [List of Unclassifed Manufacturers]
Datasheet
FEATURES
• 5.000 V Output ± 0.500 mV (.01%)
• Temperature Drift: 0.6 ppm/°C
• Low Noise: 3
• Low Thermal Hysterisis: 1 ppm Typ.
• ±15mA Output Source and Sink Current
• Excellent Line Regulation: 5 ppm/V Typ.
• Optional Noise Reduction and Voltage Trim
• Industry Standard Pinout
DESCRIPTION
The VRE3050 is a low cost, high precision 5.0V
reference that operates from +10V. The device
features a buried zener for low noise and excellent
long term stability. Packaged in an 8 pin DIP and
SMT, the device is ideal for high resolution data
conversion systems.
The device provides ultrastable +5.000V output
with ±0.5000 mV (.01%) initial accuracy and a
temperature coefficient of 0.6 ppm/°C.
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 VRE3050 series
the most accurate reference available.
For enhanced performance, the VRE3050 has an
external trim option for users who want less than
0.01%
applications,
attached between the noise reduction pin and the
ground pin.
THALER CORPORATION • 2015 N. FORBES BOULEVARD • TUCSON, AZ. 85745 • (520) 882-4000
initial
an
µ
error.
V
p-p
external
(0.1Hz-10Hz)
For
VRE3050
Low Cost
Precision Reference
capacitor
ultra
low
can
noise
This
be
For package option add D for DIP or S for Surface Mount
to end of model number.
The VRE3050 is recommended for use as a
reference for 14, 16, or 18 bit data converters
which require an external precision reference.
The device is also ideal for calibrating scale factor
on high resolution data converters. The VRE3050
offers superior performance over monolithic
references.
VRE3050B
VRE3050C
VRE3050J
VRE3050K
VRE3050L
VRE3050A
Model
GND
N/C
+V
N/C
PIN CONFIGURATION
IN
1
2
3
4
SELECTION GUIDE
Initial
Error
mV
0.5
0.8
1.0
0.5
0.8
1.0
VRE3050
FIGURE 1
VIEW
TOP
ppm/°C
Temp.
Coeff.
0.6
1.0
2.0
0.6
1.0
2.0
8
7
6
5
NOISE
REDUCTION
N/C
TRIM
V
VRE3050DS REV. D JULY 2000
OUT
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
Range °C
Temp.

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VRE3050A Summary of contents

Page 1

... The device is also ideal for calibrating scale factor on high resolution data converters. The VRE3050 offers superior performance over monolithic references. This Model VRE3050A VRE3050B VRE3050C VRE3050J VRE3050K VRE3050L ultra low ...

Page 2

... Storage Temperature……………………..……-65°C to 150°C Lead Temperature (soldering,10 sec)…………………..250°C CONDITIONS V IN VRE3050A/J VRE3050B/K OUT VRE3050C/L VRE3050A/J VRE3050B/K OUT VRE3050C/K Figure 3 OUT To 0.01% of final value on 0.1Hz<f<10Hz ...

Page 3

... TYPICAL PERFORMANCE CURVES V vs. TEMPERATURE OUT 1.00 0.75 0.50 Upper Limit Upper Limit 0.25 0 -0.25 Lower Limit Lower Limit -0.50 -0.75 -1. Temperature ( C) o VRE3050A V vs. TEMPERATURE OUT 2.0 1.5 1.0 Upper Limit 0.5 0 -0.5 Lower Limit -1.0 -1.5 -2.0 -50 - 100 0 Temperature ( o C) VRE3050J SUPPLY CURRENT VS. SUPPLY VOLTAGE 6.0 5.0 4.0 3 ...

Page 4

TYPICAL PERFORMANCE CURVES JUNCTION TEMP. RISE VS. OUTPUT CURRENT Output Current (mA) OUTPUT NOISE-VOLTAGE DENSITY vs. FREQUENCY 100 100 1k 10k Frequency (Hz) RIPPLE ...

Page 5

THEORY OF OPERATION The following discussion refers to the schematic in figure 2 below. A FET current source is used to bias a 6.3V zener diode. The zener voltage is divided by the resistor network R1 and R2. This voltage ...

Page 6

... Thermal hysterisis is difficult to correct and is a major error source in systems that experience temperature changes greater than 25 C. Reference vendors are starting to include this important specification in their datasheets. The 6 10 min ...

Page 7

MECHANICAL SPECIFICATIONS INCHES DIM MIN MAX A .110 .120 B .095 .105 B1 .021 .027 C .055 .065 C1 .012 .020 C2 .020 .040 D .395 .405 MILLIMETER INCHES MIN MAX DIM MIN MAX ...

Page 8

INCHES DIM MIN A .170 B .095 B1 .016 C .008 C1 .055 D .395 D1 .372 MECHANICAL SPECIFICATIONS MECHANICAL SPECIFICATIONS MILLIMETER INCHES MAX MIN MAX DIM MIN .180 4.318 4.572 E .425 ...

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