LTC1052CH Linear Technology, LTC1052CH Datasheet - Page 17

• Manufacturer Part Number: LTC1052CH
• Description: LOW NOISE CHOPPER STAB OA
• Manufacturer: Linear Technology
• Series: LTCMOS™r

Specifications of LTC1052CH

• Amplifier Type: Chopper (Zero-Drift)
• Number Of Circuits: 1
• Slew Rate: 4 V/µs
• Gain Bandwidth Product: 1.2MHz
• Current - Input Bias: 1pA
• Voltage - Input Offset: 0.5µV
• Current - Supply: 1.7mA
• Voltage - Supply, Single/dual (±): 4.75 V ~ 16 V, ±2.38 V ~ 8 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: TO-5-8
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Output Type: -
• Current - Output / Channel: -
• -3db Bandwidth: -

TYPICAL APPLICATIO S
3
2
+
–
LM301A
5V
1000pF
1
7
– 5V
BRIDGE DRIVE
–
+
FILTER-AND-OVERLOAD
4
8
THERMOCOUPLE 41.4µV/°C
6
OPTIONAL INPUT
1k
100k
1µF
TYPE K
CLAMP
60°C TRIM
2N2905
187Ω*
A
20Ω
50k
†
1N914
COLD JUNCTION BIAS
487Ω*
150k**
33k**
1µF
STABILIZING AMP
– 5V
5V
U
20Ω
0.1µF
1N4148
1N4148
301k*
3
2
+
–
100pF
5
LTC1052
3.3M
Direct Thermocouple-to-Frequency Converter
1
22.3k*
STRAIN GAUGE
TRANSDUCER
Z
Z
– 5V
3300pF
IN
OUT
LTC1043
5V
= 350Ω
7
4
16
13
2
= 350Ω
7
Direct 10-Bit Strain Gauge Digitizer
8
SW2
SW1
6
0.1µF
1/2
470k*
6
LTC1043
1.8k*
11
12
1000pF
3.3MΩ*
33k
R
0.1µF
T
28k
16
14
8
0.01µF
0.68µF
1k*
A
74C04
4.75k*
74C04
1k*
2
3
COLD JUNCTION TEMPERATURE TRACKING
INTEGRATOR
– 5V
5V
+
–
LTC1052
– 5V
10k
1
5V
CONNECT DIRECTLY
+
– 5V
5V
1N4148
F
ACROSS BRIDGE
7
4
LT1004–1.2V
DRIVE POINTS
14k
33µF
8
CLOCK
6
0.01µF
74C00
B
2
5V
14
– 5V
3k
1/2 74C74
C
5V
7
1
**
820pF
0.003µF
*
470Ω
†
0.01% FILM-TRW MAR-6
TRW/MTR/5/ + 120
R
100pF = POLYSTYRENE
FOR GENERAL PURPOSE (1mV FULL-SCALE)
10-BIT A-TO-D, REMOVE THERMOCOUPLE—
COLD JUNCTION NETWORK, GROUND POINT A,
AND DRIVE LTC1052 POSITIVE INPUT
4
10k
T
6
= YELLOW SPRINGS INST. #44007
3
D
100k
LTC1052/LTC7652
5
*0.1% METAL FILM TRW MAR-5
10k
DATA OUTPUT =
SW1 = MAIN CURRENT SWITCH
SW2 = CURRENT LOADING COMPENSATION SWITCH
OUTPUT
GATING
CONNECT TO BRIDGE
END OF 470k RESISTOR
E
– 5V
5V
TRANSDUCER ZERO NETWORK
74C903
5V
1/2 74C903
(OPTIONAL)
5V
OUT A
OUT B
OUTPUT
0Hz TO 600Hz
0°C TO 60°C
= 1000 COUNTS FULL-SCALE
LTC1052/7652 • TA17
LTC1052/7652 • TA16
FREQUENCY
OUT B
FREQUENCY
OUT A
17
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