LT6650 Datasheet, PDF (1/12 Pages) Linear Technology – Micropower, 400mV Reference with Rail-to-Rail Buffer Amplifier in SOT-23

FEATURES
s _{Low Quiescent Current 5.6µA (typical)}
s _{Wide Supply Range: 1.4V to 18V}
s _{400mV Reference ±1% Maximum Accuracy Over}
Temperature at 5V
s _{Rail-to-Rail Buffer Amplifier}
s _{0.5% 400mV Maximum Initial Accuracy at 5V}
s _{Shunt Configurable}
s _{Sinks and Sources Current}
s _{Wide Operational Range –40°C to 125°C}
s _{Externally Adjustable Output Voltage}
s _{Low Profile 1mm 5-lead SOT-23}
(ThinSOT™) Package
U
APPLICATIO S
s _{Battery-Operated Systems}
s _{Handheld Instruments}
s _{Industrial Control Systems}
s _{Data Acquisition Systems}
s _{Negative Voltage References}
LT6650
Micropower, 400mV
Reference with Rail-to-Rail
Buffer Amplifier in SOT-23
DESCRIPTIO
The LT^®6650 is a micropower, low voltage 400mV refer-
ence. Operating with supplies from 1.4V up to 18V, the
device draws only 5.6µA 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 200µA
over temperature. Quiescent power dissipation is 28µW.
Stability is ensured with any output capacitor of 1µF 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.
TYPICAL APPLICATIO
Battery-Powered 0.4V Reference
V_IN = 1.4V TO 18V
I_Q ≈ 6µA
4
IN
LT6650
V_R = 400mV
REFERENCE
+
–
OUT 5
V_OUT
0.4V
GND
1µF
2
FB 1
1µF
6650 TA01a
LT6650 Temperature Drift
402
TYPICAL LT6650 PART
V_IN = 5V
401
NO LOAD
SINK 200µA
400
SOURCE –200µA
399
398
–50 –30 –10 10 30 50 70 90 110 130
TEMPERATURE (°C)
6650 TA01b
6650f
1