IC VOLT REF PREC 5V 8-SMD

VRE3050AS

Manufacturer Part NumberVRE3050AS
DescriptionIC VOLT REF PREC 5V 8-SMD
ManufacturerCirrus Logic Inc
VRE3050AS datasheet
 

Specifications of VRE3050AS

Reference TypeSeriesVoltage - Output5V
Tolerance±0.5mVTemperature Coefficient0.6ppm/°C
Voltage - Input8 ~ 36 VNumber Of Channels1
Current - Quiescent4mACurrent - Output15mA
Operating Temperature0°C ~ 70°CMounting TypeSurface Mount
Package / Case8-SMDProductVoltage References
TopologySeries ReferencesOutput Voltage5 V
Average Temperature Coefficient (typ)0.6 PPM / CSeries Vref - Input Voltage (max)40 V
Shunt Current (max)15 mAMaximum Operating Temperature+ 70 C
Minimum Operating Temperature0 CMounting StyleSMD/SMT
Lead Free Status / RoHS StatusLead free / RoHS CompliantCurrent - Cathode-
Other names598-1774  
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VRE3050
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
Precision Voltage Reference
FEATURES
♦ +5 V Output, ± 0.5 mV (.01%)
♦ Temperature Drift: 0.6 ppm/ºC
♦ Low Noise: 3 μV
(0.1Hz-10Hz)
P-P
♦ Low Thermal Hysterisis: 1 ppm Typical
♦ ±15mA Output Source and Sink Current
♦ Excellent Line Regulation: 5 ppm/V Typical
♦ Optional Noise Reduction and Voltage Trim
♦ Industry Standard Pinout: 8-pin Surface Mount
Package
APPLICATIONS
The VRE3050 is recommended for use as a refer-
ence for 14, 16, or 18 bit data converters which re-
quire 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.
SELECTION GUIDE
Initial Error
Temp. Coeff.
Model
(mV)
(ppm/ºC)
VRE3050A
±0.5
0.6
VRE3050B
±0.8
1.0
VRE3050C
±1.0
2.0
VRE3050J
±0.5
0.6
VRE3050K
±0.8
1.0
VRE3050L
±1.0
2.0
VRE3050DS
www.cirrus.com
DESCRIPTION
The VRE3050 is a low cost, high precision 5 V refer-
ence that operates from +10 V. The device features
a buried zener for low noise and excellent long term
stability. Packaged in an 8-pin SMT, the device is ideal
for high resolution data conversion systems.
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. Significant improvements
have been made in other performance parameters as
well, including initial accuracy, warm-up drift, line reg-
ulation, and long-term stability, making the VRE3050
series the most accurate reference available.
For enhanced performance, the VRE3050 has an ex-
ternal trim option for users who want less than 0.01%
initial error. For ultra low noise applications, an exter-
nal capacitor can be attached between the noise re-
duction pin and the ground pin.
Figure 1. BLOCK DIAGRAM
8
2
+
-
R1
R4
R2
R3
4
Temp. Range
(ºC)
0ºC to +70ºC
0ºC to +70ºC
0ºC to +70ºC
-40ºC to +85ºC
-40ºC to +85ºC
-40ºC to +85ºC
Copyright © Cirrus Logic, Inc. 2010
(All Rights Reserved)
VRE3050
VRE3050
6
5
8-pin Surface Mount
Package Style GF
FEB2010
APEX − VRE3050DSREVG
1

VRE3050AS Summary of contents

  • Page 1

    VRE3050 ...

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    VRE3050 1. CHARACTERISTICS AND SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS Power Supply ........................... -0.3V to +40V OUT, TRIM ................................ -0.3V to +12V NR .............................................. -0.3V to +6V Operating Temp. (A,B,C) ........... 0ºC to +70ºC Operating Temp. (J,K,L) ......... -40ºC to +85ºC ELECTRICAL ...

  • Page 3

    TYPICAL PERFORMANCE CURVES V vs. TEMPERATURE OUT 1.00 0.75 0.50 Upp er Li mit Up per Lim ...

  • Page 4

    VRE3050 JUNCTION TEMP. RISE VS. OUTPUT CURRENT Output Current (mA) OUTPUT NOISE-VOLTAGE DENSITY vs. FREQUENCY 100 100 1k Frequency (Hz) 4 ® ...

  • Page 5

    THEORY OF OPERATION The following discussion refers to the block diagram in Figure 1. A FET current ...

  • Page 6

    VRE3050 Figure 3. 10000 1000 100 10 1 0.1 0.01 1 Reference TC vs. ∆T change from 25°C for 1 LSB change 5. TEMPERATURE PERFORMANCE The VRE3050 is designed for applications where the initial error at room temperature and drift ...