LT6650
Micropower, 400mV
Reference with Rail-to-Rail
Buffer Amplifier in SOT-23
FEATURES
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s
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DESCRIPTIO
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Low Quiescent Current 5.6
碌
A (typical)
Wide Supply Range: 1.4V to 18V
400mV Reference
鹵
1% Maximum Accuracy Over
Temperature at 5V
Rail-to-Rail Buffer Amplifier
0.5% 400mV Maximum Initial Accuracy at 5V
Shunt Configurable
Sinks and Sources Current
Wide Operational Range 鈥?0擄C to 125擄C
Externally Adjustable Output Voltage
Low Profile 1mm 5-lead SOT-23
(ThinSOT鈩? Package
The LT
廬
6650 is a micropower, low voltage 400mV refer-
ence. Operating with supplies from 1.4V up to 18V, the
device draws only 5.6碌A typical, making it ideal for low
voltage systems as well as handheld instruments and
industrial control systems. With only two resistors the
internal buffer amplifier can scale the 400mV reference to
any desired value up to the supply voltage.
The reference is postpackage-trimmed to increase the
output accuracy. The output can sink and source 200碌A
over temperature. Quiescent power dissipation is 28碌W.
Stability is ensured with any output capacitor of 1碌F or
higher.
The LT6650 is the lowest voltage series reference available
in the 5-lead SOT-23 package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
APPLICATIO S
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Battery-Operated Systems
Handheld Instruments
Industrial Control Systems
Data Acquisition Systems
Negative Voltage References
TYPICAL APPLICATIO
V
IN
= 1.4V TO 18V
I
Q
鈮?/div>
6碌A
Battery-Powered 0.4V Reference
402
LT6650 Temperature Drift
TYPICAL LT6650 PART
V
IN
= 5V
NO LOAD
SINK 200碌A
400
SOURCE 鈥?00碌A
399
REFERENCE VOLTAGE (mV)
4
IN
V
R
= 400mV
REFERENCE
LT6650
401
+
鈥?/div>
OUT 5
V
OUT
0.4V
GND
1碌F
2
FB 1
1碌F
398
鈥?0 鈥?0 鈥?0 10 30 50 70 90 110 130
TEMPERATURE (擄C)
6650 TA01b
6650 TA01a
U
6650f
U
U
1
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