Datasheet

LT3042
28
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For more information www.linear.com/LT3042
TYPICAL APPLICATIONS
Low Noise Wheatstone Bridge Power Supply
4.7µF
33.2k
4.7µF
200k
453k
49.9k
3042 TA13
4.7µF
R2
R1
R3
+
–
R4
V
IN
5V ±5%
OUT
IN
SET
LT3042
V
OUT
: 3.3V AND I
OUT(MAX)
: 200mA
100µA
OUTS
PGFB
ILIM
GND
PG
EN/UV
RESISTOR
TOLERANCE
BRIDGE PSRR
NOISE AT V
BRIDGE
USING LT1763
1%
5%
40dB
26dB
8nV
RMS
42.5nV
RMS
PERFECT
MATCHING
INFINITE
–
NOISE AT V
BRIDGE
USING LT3042
200nV
RMS
1000nV
RMS
–
LT1763 NOISE: 20µV
RMS
(10Hz TO 100kHz)
LT3042 NOISE: 0.8µV
RMS
(10Hz TO 100kHz)
V
BRIDGE
+
–
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