The **CA1458, CA1558 (Double Op Amp)** and **CA741C, CA741, LM741 (Single Op Amp)** are high-performance operational amplifiers designed for use in military, industrial, and commercial applications. These monolithic silicon integrated circuits offer robust features such as output short-circuit protection, latch-free operation, and a wide common-mode voltage range. They also support differential signal handling with low offset voltage, making them ideal for precision analog circuits.
These op amps are commonly used in various electronic systems due to their reliability and versatility. The **CA741** series is particularly well-known for its widespread application in audio and control systems. For zero adjustment, a 10kΩ potentiometer is typically used for the **CA741C** and **CA741**, while the **CA1458** and **CA1558** models do not have specific offset pins, so external adjustments are required.
Each op amp includes a differential input stage that drives the gain and an emitter follower for the complementary output, ensuring stable and accurate signal amplification. The internal circuitry is designed to provide excellent performance across a broad range of operating conditions.
The **CA741C, CA1458, LM741C, and LM1458** models are available in both metal can and DIP plastic packages. The metal can package is often used in high-reliability applications, while the DIP package is more common in general-purpose designs.
### Pin Configuration
- **CA741, CA741C, LM741, LM741C:**
- Pin 1: Offset (zero)
- Pin 2: Inverting Input
- Pin 3: Non-inverting Input
- Pin 4: Ground
- Pin 6: Output
- Pin 7: Positive Supply
- Pin 8: No Connection
- **CA1458, CA1558, LM1458:**
- Pin 1: Output A
- Pin 2: Inverting Input A
- Pin 3: Non-inverting Input A
- Pin 4: Ground
- Pin 5: Non-inverting Input B
- Pin 6: Inverting Input B
- Pin 7: Output B
- Pin 8: Positive Supply
### Absolute Maximum Ratings
| Parameter | Value |
|----------------------------------|-------------|
| Power Supply Voltage | 36V (CA741C, CA1458, LM741C, LM1458)
44V (CA741, CA1558, LM741) | | Differential Input Voltage | 30V | | Input Voltage | ±15V | | Max Junction Temperature (Plastic) | 150°C | | Max Junction Temperature (Can) | 175°C | | Operating Temperature Range | -55°C to 125°C (CA741, CA1558, LM741)
0°C to 70°C (CA741C, CA1458, LM741C, LM1458) | ### Ordering Information | Part Number | Temp Range (°C) | Package | PKG NO. | |------------------|------------------|-----------------|---------| | CA0741E | -55 to 125 | 8Ld PDIP | E8.3 | | CA0741CE | 0 to 70 | 8Ld PDIP | E8.3 | | CA1458E | 0 to 70 | 8Ld PDIP Dual | E8.3 | | CA1558E | -55 to 125 | 8Ld PDIP Dual | E8.3 | | CA0741T | -55 to 125 | 8Pin Metal Can | T8.C | | CA0741CT | 0 to 70 | 8Pin Metal Can | T8.C | | CA1558T | -55 to 125 | 8Pin Metal Can | T8.C | | LM741N | -55 to 125 | 8Ld PDIP | E8.3 | | LM741CN | 0 to 70 | 8Ld PDIP | E8.3 | | LM1458N | 0 to 70 | 8Ld PDIP Dual | E8.3 | ### Electrical Specifications (VSUPPLY = ±15V) | Parameter | Symbol | Test Conditions | Typical Value | Unit | |------------------------------|--------|----------------------------------|---------------|------| | Input Capacitance | CI | - | 1.4 pF | pF | | Offset Voltage Adjustment | - | ±15 mV | - | mV | | Output Resistance | RO | - | 75 Ω | Ω | | Output Short Circuit Current | - | - | 25 mA | mA | | Slew Rate (Closed Loop) | SR | RL ≥ 2kΩ | 0.5 V/μs | V/μs | | Gain Bandwidth Product | GBWP | RL = 12kΩ | 0.9 MHz | MHz | These devices are widely used in analog circuits due to their stability, ease of use, and compatibility with standard power supplies. Whether you're designing a simple amplifier or a complex control system, these op amps provide reliable performance and flexibility.
44V (CA741, CA1558, LM741) | | Differential Input Voltage | 30V | | Input Voltage | ±15V | | Max Junction Temperature (Plastic) | 150°C | | Max Junction Temperature (Can) | 175°C | | Operating Temperature Range | -55°C to 125°C (CA741, CA1558, LM741)
0°C to 70°C (CA741C, CA1458, LM741C, LM1458) | ### Ordering Information | Part Number | Temp Range (°C) | Package | PKG NO. | |------------------|------------------|-----------------|---------| | CA0741E | -55 to 125 | 8Ld PDIP | E8.3 | | CA0741CE | 0 to 70 | 8Ld PDIP | E8.3 | | CA1458E | 0 to 70 | 8Ld PDIP Dual | E8.3 | | CA1558E | -55 to 125 | 8Ld PDIP Dual | E8.3 | | CA0741T | -55 to 125 | 8Pin Metal Can | T8.C | | CA0741CT | 0 to 70 | 8Pin Metal Can | T8.C | | CA1558T | -55 to 125 | 8Pin Metal Can | T8.C | | LM741N | -55 to 125 | 8Ld PDIP | E8.3 | | LM741CN | 0 to 70 | 8Ld PDIP | E8.3 | | LM1458N | 0 to 70 | 8Ld PDIP Dual | E8.3 | ### Electrical Specifications (VSUPPLY = ±15V) | Parameter | Symbol | Test Conditions | Typical Value | Unit | |------------------------------|--------|----------------------------------|---------------|------| | Input Capacitance | CI | - | 1.4 pF | pF | | Offset Voltage Adjustment | - | ±15 mV | - | mV | | Output Resistance | RO | - | 75 Ω | Ω | | Output Short Circuit Current | - | - | 25 mA | mA | | Slew Rate (Closed Loop) | SR | RL ≥ 2kΩ | 0.5 V/μs | V/μs | | Gain Bandwidth Product | GBWP | RL = 12kΩ | 0.9 MHz | MHz | These devices are widely used in analog circuits due to their stability, ease of use, and compatibility with standard power supplies. Whether you're designing a simple amplifier or a complex control system, these op amps provide reliable performance and flexibility.
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