MC1776C Datasheet, PDF (1/12 Pages) ON Semiconductor – PROGRAMMABLE OPERATIONAL AMPLIFIER

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MC1776C
Micropower Programmable
Operational Amplifier
This extremely versatile operational amplifier features low power
consumption and high input impedance. In addition, the quiescent currents
within the device may be programmed by the choice of an external resistor
value or current source applied to the Iset input. This allows the amplifier’s
characteristics to be optimized for input current and power consumption
despite wide variations in operating power supply voltages.
• ±1.2 V to ±18 V Operation
• Wide Programming Range
• Offset Null Capability
• No Frequency Compensation Required
• Low Input Bias Currents
• Short Circuit Protection
Resistive Programming
(See Figure 1)
Rset to Ground
7 VCC
2
–
6
3
+
4
VEE
8
Rset _{VCC – 0.6}
Iset = _Rset
Typical Rset Values
VCC, VEE Iset = 1.5 µA Iset = 15 µA
± 6.0 V
± 10 V
± 12 V
± 15 V
3.6 MΩ
6.2 MΩ
7.5 MΩ
10 MΩ
360 kΩ
620 kΩ
750 kΩ
1.0 MΩ
Rset to Negative Supply
(Recommended for supply voltage
less than ± 6.0 V)
7 VCC
2
–
6
3
+
4
VEE
8
Rset
Iset =
VCC – 0.6 – VEE
Rset
Typical Rset Values
VCC, VEE Iset = 1.5 µA Iset = 15 µA
± 1.5 V
± 3.0 V
± 6.0 V
± 15 V
1.6 MΩ
3.6 MΩ
7.5 MΩ
20 MΩ
160 kΩ
360 kΩ
750 kΩ
2.0 MΩ
Active Programming
FET Current Source
Bipolar Current Source
2
7 VCC
–
6
3
+ _{4 VEE}
8
VG
VEE
Pins not shown are not connected.
7
2
–
6
3
+ _{4 VEE}
8
Q
VB
R
VEE
PROGRAMMABLE
OPERATIONAL AMPLIFIER
SEMICONDUCTOR
TECHNICAL DATA
8
1
P1 SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
PIN CONNECTIONS
Offset Null ¹
Invert 2 _–
Input
Noninvert ^{3 +}
VEE ⁴
8 _Iset
7 VCC
6 _Output
5 _{Offset Null}
(Top View)
ORDERING INFORMATION
Device
Operating
Temperature Range Package
MC1776CD
MC1776CP1
TA = 0° to +70°C
SO–8
Plastic DIP
MOTOROLA ANALOG IC DEVICE DATA
© Motorola, Inc. 1996
Rev 5
1