CA3140A

4.5MHz, BiMOS Operational Amplifier with MOSFET Input/Bipolar Output

Product Status: Mass Production

OVERVIEW

The CA3140A and CA3140 are integrated circuit operational amplifiers that combine the advantages of high voltage PMOS transistors with high voltage bipolar transistors on a single monolithic chip.

The CA3140A and CA3140 BiMOS operational amplifiers feature gate protected MOSFET (PMOS) transistors in the input circuit to provide very high input impedance, very low input current, and high speed performance. The CA3140A and CA3140 operate at supply voltage from 4V to 36V (either single or dual supply). These operational amplifiers are internally phase compensated to achieve stable operation in unity gain follower operation, and additionally, have access terminal for a supplementary external capacitor if additional frequency roll-off is desired. Terminals are also provided for use in applications requiring input offset voltage nulling. The use of PMOS field effect transistors in the input stage results in common mode input voltage capability down to 0.5V below the negative supply terminal, an important attribute for single supply applications. The output stage uses bipolar transistors and includes built-in protection against damage from load terminal short circuiting to either supply rail or to ground.FN957 The CA3140A and CA3140 are intended for operation at supply voltages up to 36V (±18V).

KEY FEATURES

  • MOSFET Input Stage
  • Very High Input Impedance (ZIN) -1.5TΩ (Typ)
  • Very Low Input Current (Il) -10pA (Typ) at ±15V
  • Wide Common Mode Input Voltage Range (VlCR) - Can be Swung 0.5V Below Negative Supply Voltage Rail
  • Output Swing Complements Input Common Mode Range
  • Directly Replaces Industry Type 741 in Most Applications
  • Pb-Free Plus Anneal Available (RoHS Compliant)

PARAMETRICS

Parameters
CA3140A
Basic Information
生产状态
Mass Production
器件/通道数量
1
带宽 (MHz)
4.5
压摆率 (V/μs)
9
VS (最小值)
4 V
VS (最大值)
36 V
IS (每放大器)
4 mA
噪声VN (nV/√Hz)
12
IBIAS
10 pA
IBIAS (最大值)
40 pA
最大失调电压
2 mV
IOUT
40 mA
VOUT (V)
27.4
轨到轨输入
-Vs
轨到轨输出
No
PSRR (dB)
80
CMRR (dB)
90
热关断
No
增益最小值
1
AVOL (dB)
100
启用
Strobe
拓扑
VFA
输出余量 (V)
2
资质级别
Standard
CAN 采样
YES
温度范围
-55 to +125

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