Order this document by MC3476/D
Low Cost Programmable
Operational Amplifier
The MC3476 is a low cost selection of the popular industry standard
MC1776 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.
• ±6.0 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
MC3476
LOW COST PROGRAMMABLE
OPERATIONAL AMPLIFIER
SEMICONDUCTOR
TECHNICAL DATA
8
1
P1 SUFFIX
PLASTIC PACKAGE
CASE 626
PIN CONNECTIONS
Offset Null 1
Invert 2 –
Input
Noninvert 3 +
VEE 4
8 Iset
7 VCC
6 Output
5 Offset Null
(Top View)
Active Programming
FET Current Source
Bipolar Current Source
2
7 VCC
–
6
3
+ 4 VEE
8
7
2
–
6
3
+ 4 VEE
8
Q
VG
VB
VEE
R
VEE
Pins not shown are not connected.
MOTOROLA ANALOG IC DEVICE DATA
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
MC3476P1 TA = 0° to +70°C Plastic DIP
© Motorola, Inc. 1996
Rev 1
1