TL062

Description

The TL062 is the dual-channel version of the TL064. It is part of the “TL06x” series, which is specifically designed as the low-power, high-input-impedance variant of the industry-standard TL07x and TL08x series.

Like the TL064, it is an excellent choice for applications where power consumption is a primary design constraint, such as battery-powered devices.

Key Specifications

• Configuration: Dual operational amplifier (two independent op-amps in an 8-pin package).

• Supply Current: Approximately $200 \, \mu\text{A}$ per amplifier (significantly lower than the $1.4 \, \text{mA}$ typical of the TL072).

• Input Impedance: $10^{12} \, \Omega$ (typical).

• Slew Rate: $3.5 \, \text{V}/\mu\text{s}$.

• Unity Gain Bandwidth: $1 \, \text{MHz}$.

TL062 vs. TL072: When to choose which?

Practical Considerations

• Battery Life: If you are designing a product that runs on a $9\text{V}$ battery or smaller cells, the TL062 will extend the operating time significantly compared to the TL072.

• Frequency Limitations: Because of the lower slew rate and bandwidth, the TL062 can struggle with full-power output at higher frequencies (e.g., above $50\text{–}100 \, \text{kHz}$). It is best suited for DC sensing, low-frequency signal conditioning, or threshold detection.

• Pin Compatibility: The TL062 is pin-compatible with the TL072 and TL082 (in the 8-pin package). This makes it very easy to “swap” the chips during the prototyping phase if you find that your power budget is tighter than expected.

Typical Use Cases

• Remote Sensing: Circuits that monitor environmental data (temperature, light, pressure) and transmit via low-power protocols.

• Portable Medical Devices: Battery-operated monitors where heat and power drain must be minimized.

• Comparator Circuits: Used in battery-powered alarms or “wake-up” triggers where the op-amp monitors a sensor state.