LTC1053CSW Linear Technology, LTC1053CSW Datasheet - Page 11

• Manufacturer Part Number: LTC1053CSW
• Description: IC OPAMP CHOPR-STBL QUAD 18SOIC
• Manufacturer: Linear Technology

Specifications of LTC1053CSW

• Amplifier Type: Chopper (Zero-Drift)
• Number Of Circuits: 4
• Slew Rate: 4 V/µs
• Gain Bandwidth Product: 2.5MHz
• Current - Input Bias: 15pA
• Voltage - Input Offset: 0.5µV
• Current - Supply: 1mA
• Voltage - Supply, Single/dual (±): 4.75 V ~ 16 V, ±2.38 V ~ 8 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 18-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Output Type: -
• Current - Output / Channel: -
• -3db Bandwidth: -
• Other names: LTC1053CS

TYPICAL APPLICATIO S
** Noise measured in a 10 sec window. Peak-to-peak noise was also measured for 10 continuous minutes: With the LT1007 op amp the recorded noise was less than 0.2µV
+
–
* Interchange connections A and B .
LT1012*
and DC-10Hz.
LT1007
A1
B
A
2
3
3
2
–
+
+
–
Obtaining Ultralow V
LTC1051
1
1/2
R1
A1
750Ω
5V
R1
3k
8
R2
1
6
OUT
R3
R4
V
57Ω
S
R2
2k
= ±5V
5
6
+
–
OS
LTC1051
R5
1/2
Drift and Low Noise
C2
340k
250k
R3
C1
U
7
10k
10k
R4
LTC1051/LT1007 Peak-to-Peak Noise
100k
100k
R5
1051/53 AC01a
OUT
0.01µF
0.01µF
1 SEC/DIV
C1
The dual chopper op amp buffers the inputs of A1 and
corrects its offset voltage and offset voltage drift. With the
R, C values shown, the power-up warm up time is typically
20 seconds. The step response of the composite amplifier
does not present settling tails. The LT1007 should be used
when extremely low noise; V
when the input source resistance is low—for instance a
350Ω strain gauge bridge. The LT1012 or equivalent
should be used when low bias current (100pA) is also
required in conjunction with DC to 10Hz low noise and low
V
voltages were less than 2µV.
OS
and V
DC TO 1Hz
0.001µF
0.001µF
NOISE
C2
OS
drift. The measured typical input offset
e
DC TO 10Hz
OUT
LTC1051/LTC1053
NOISE
(DC – 1Hz)**
0.1µV
0.3µV
P-P
P-P
OS
and V
1051/53 AC01b
OS
e
OUT
drift are sought
(DC – 10Hz)**
0.15µV
0.4µV
P-P
for both DC-1Hz
P-P
P-P
11
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