LM11C, CL
Precision Operational
Amplifiers
The LM11C is a precision, low drift operational amplifier providing the best
features of existing FET and Bipolar op amps. Implementation of super gain
transistors allows reduction of input bias currents by an order of magnitude
over earlier devices such as the LM308A. Offset voltage and drift have also
been reduced. Although bandwidth and slew rate are not as great as FET
devices, input offset voltage, drift and bias current are inherently lower,
particularly over temperature. Power consumption is also much lower,
eliminating warm–up stabilization time in critical applications.
Offset balancing is provided, with the range determined by an external low
resistance potentiometer. Compensation is provided internally, but external
compensation can be added for improved stability when driving capacitive
loads.
The precision characteristics of the LM11C make this device ideal for
applications such as charge integrators, analog memories, electrometers,
active filters, light meters and logarithmic amplifiers.
• Low Input Offset Voltage: 100 µV
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PRECISION
OPERATIONAL AMPLIFIERS
SEMICONDUCTOR
TECHNICAL DATA
8
1
Low Input Bias Current: 17 pA
N SUFFIX
PLASTIC PACKAGE
CASE 626
Low Input Offset Current: 0.5 pA
Low Input Offset Voltage Drift: 1.0 µV/°C
Long–Term Stability: 10 µV/year
High Common Mode Rejection: 130 dB
Representative Schematic Diagram
PIN CONNECTIONS
Compensation
Balance
VCC
Q9
Q10
17.4 k
Balance
7.5 k
8
1
Balance
17.4 k
Q17
7.0 k
Q18
2
3.0 pF
Inputs
VEE
–
7
VCC
3
+
6
Output
5
Compensation
4
(Top View)
Q7
Q5
Q1
–
Q3
Inputs
Q8
1.0 k
Q4
Q2
80 k
30
pF
Q16
Q25
+
1.0 k
Q15
Q11
1.4 k
Q29
2.0 k
2.0 k 2.0 k
Q12
Q28
Q6
7.0 k
Q27
1.0 k
65
VEE
Q20
Output
150
47
V
VCC
Q13
200
Q31
VCC
Q26
Q32
Q30
Q33
Q21
ORDERING INFORMATION
Q14
Q24
6.2 k
2–24
362
50 k
20 k
Q22
Device
Q23
1.2 k
VEE
Operating
Temperature Range
Package
LM11CN,CLN
TA = 0° to +70°C
Plastic DIP
MOTOROLA ANALOG IC DEVICE DATA
