VRE306 CIRRUS [Cirrus Logic], VRE306 Datasheet

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VRE306

Manufacturer Part Number
VRE306
Description
Precision Voltage Reference
Manufacturer
CIRRUS [Cirrus Logic]
Datasheet
FEaTuRES
♦ +6 V Output, ± 0.6 mV (.01%)
♦ Temperature Drift: 0.6 ppm/ºC
♦ Low Noise: 4 μV
♦ Industry Standard Pinout: 8-pin Surface Mount
♦ Excellent Line Regulation: 6 ppm/V Typical
♦ Output Trim Capability
aPPlICaTIONS
The VRE306 is recommended for use as a refer-
ence for 14, 16, or 18 bit D/A converters which re-
quire an external precision reference. The device
is also ideal for calibrating scale factor on high
resolution A/D converters. The VRE306 offers su-
perior performance over monolithic references.
SElECTION GuIDE
VRE306DS
VRE306A
VRE306C
Package
Model
http://www.cirrus.com
Initial Error
(mV)
±0.6
±1.2
P r o d u c t I n n o v a t i o n F r o m
P r o d u c t I n n o v a t i o n F r o m
P-P
(0.1-10Hz)
Temp. Coeff.
Precision Voltage Reference
(ppm/ºC)
0.6
2.0
Figure . BlOCK DIaGRaM
Temp. Range
0ºC to +70ºC
0ºC to +70ºC
Copyright © Cirrus Logic, Inc. 2009
(ºC)
(All Rights Reserved)
DESCRIPTION
The VRE306 is a low cost, high precision +6 V refer-
ence. Available in an industry standard 8-pin surface
mount package, the device is ideal for upgrading sys-
tems that use lower performance references.
The device provides ultrastable +6 V output with ±0.6
mV (.01%) initial accuracy and a temperature coeffi-
cient of 0.6 ppm/ºC. This improvement in accuracy is
made possible by a unique, patented multipoint laser
compensation technique. 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 VRE306
series the most accurate reference available in a stan-
dard 8-pin SMT package.
For enhanced performance, the VRE306 has an exter-
nal trim option for users who want less than 0.01% ini-
tial error. For ultra low noise applications, an external
capacitor can be attached between the noise reduction
pin and the ground pin. A reference ground pin is pro-
vided to eliminate socket contact resistance errors.
8-pin Surface Mount
Package Style GD
APEX − VRE306DSREVC
VRE306
VRE306
MaR 2009


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VRE306 Summary of contents

Page 1

... DESCRIPTION The VRE306 is a low cost, high precision +6 V refer- ence. Available in an industry standard 8-pin surface mount package, the device is ideal for upgrading sys- tems that use lower performance references. The device provides ultrastable +6 V output with ±0.6 mV (.01%) initial accuracy and a temperature coeffi- cient of 0.6 ppm/º ...

Page 2

... Noise (0.1 - 10Hz) (Note 4) OuTPuT CuRRENT Range REGulaTION Line Load OuTPuT aDJuSTMENT Range POWER SuPPlY CuRRENT (Note 5) VRE306 +PS NOTES: * Same as A Models. 1. The temp. reference TC is 2.1 mV/ ºC 2. The specified values are without external trim. 3. The temperature coefficient is determined by the box method using the following formula: V – V MAX T ...

Page 3

... This network is less than 2% of the overall network resistance so it has a negligible effect on long term stability. VRE306DS vs. TEMPERATURE o C VRE306A JUNCTION TEMP. RISE VS. OUTPUT CURRENT Output Current (mA) V vs. TEMPERATURE OUT Temperature o C VRE306C PSRR VS. FREQUENCY Frequency (Hz) VRE306 3 ...

Page 4

... VRE306 The proper connection of the VRE306 series voltage references with the optional trim resistor for initial error and the optional capacitor for noise reduction is shown below. The VRE306 reference has the ground terminal brought out on two pins (pin 4 and pin 7) which are connected together internally. This allows the user to achieve greater accuracy when using a socket ...

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