LT1024_15 Datasheet, PDF (9/12 Pages) Linear Technology – Dual, Matched Picoampere, Microvolt Input, Low Noise Op Amp

APPLICATIO S I FOR ATIO
Direct Pressure Transducer to Digital Output Signal Conditioner
LT1024
15V
2N3904 ^TRANSDUCER
28k
330Ω
ZERO
10k
–5V
15V
14
+⁴
13
LT1024
–³
12
–15V
2k
620Ω
120k*
50k
226k*
GAIN TRIM
10µF
–5V
+
ADJ
10k*
–15V V_{IN LT137A} OUT
14k
1N4148
0.0047µF
f_CLK ~~ 10kHz
OUT B
0.01µF
15V
10 _– 7
LT1024
11 ₊
5
–15V
10k
OUT A
OUTPUT = f_OUT A/f_OUT B
CLK
Q
6
10k
D
74C74
Q
PRE
CLR
15V
10k
*1% METAL FILM RESISTOR
GATES = 74C00
**TRANSDUCER = BLH # DHF-100 PSI
PRESSURE TRANSDUCER
0 – 100 PSI = 0 – 1000
COUNTS FULL-SCALE AT CIRCUIT OUTPUT
2N2979
100k
100k
–5V
2N3904
10k
–15V
LT1024 • AI03
1024fa
9