CA3130

15MHz, BiMOS Operational Amplifier with MOSFET Input/CMOS Output

Product Status: Mass Production

OVERVIEW

CA3130A and CA3130 are op amps that combine the advantage of both CMOS and bipolar transistors.

Gate-protected P-Channel MOSFET (PMOS) transistors are used in the input circuit to provide very-high-input impedance, very-low-input current, and exceptional speed performance. The use of PMOS transistors in the input stage results in common-mode input-voltage capability down to 0.5V below the negative-supply terminal, an important attribute in single-supply applications.

A CMOS transistor-pair, capable of swinging the output voltage to within 10mV of either supply-voltage terminal (at very high values of load impedance), is employed as the output circuit.

The CA3130 Series circuits operate at supply voltages ranging from 5V to 16V, (±2.5V to &#plusmn8V). They can be phase compensated with a single external capacitor, and have terminals for adjustment of offset voltage for applications requiring offset-null capability. Terminal provisions are also made to permit strobing of the output stage.

The CA3130A offers superior input characteristics over those of the CA3130.

KEY FEATURES

  • MOSFET Input Stage Provides:
  • Very High ZI = 1.5 TΩ (1.5 x 1012Ω) (Typ)
  • Very Low II 5pA (Typ) at 15V Operation = 2pA (Typ) at 5V Operation
  • Ideal for Single-Supply Applications
  • Common-Mode Input-Voltage Range Includes Negative Supply Rail; Input Terminals can be Swung 0.5V Below Negative Supply Rail
  • CMOS Output Stage Permits Signal Swing to Either (or both) Supply Rails
  • Pb-Free Plus Anneal Available (RoHS Compliant)

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
CA3130
Basic Information
Production Status
Mass Production
# of Devices/ Channels
1
Bandwidth (MHz)
15
Slew Rate (V/μs)
30
VS (min)
5 V
VS (max)
16 V
IS (per amp)
2 mA
Noise VN (nV/√Hz)
23000
IBIAS
5 pA
IBIAS (max)
50 pA
Max Offset Voltage
8 mV
IOUT
22 mA
VOUT (V)
13.3
Rail-to-Rail Input
-Vs
Rail-to-Rail Output
No
PSRR (dB)
90
CMRR (dB)
90
Thermal Shutdown
No
Gain Min
1
AVOL (dB)
110
Enable
Strobe
Topology
VFA
Output Headroom (V)
1.7
Qualification Level
Standard
Can Sample
YES
Temperature Range
-55 to +125

Below you will find information to support the development of your application.

You can find an explanation of orderable part numbers here.

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Hardware Design Support

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