ALD1704BPAL

Overview

The ALD1704BPAL is a CMOS monolithic operational amplifier featuring rail-to-rail input and output voltage ranges. It offers a slew rate of 5V/µs, unity gain bandwidth of 2.1MHz, and typical input bias current of 1pA. The device operates on dual supplies from ±3.25V to ±5V or single supply up to 10V. Output voltage swings within 60mV of supply rails at rated load. Input offset voltage is typically 2mV with drift of 55µV/°C. Power dissipation is 30mW at ±5V. It provides short circuit protection and drives capacitive loads up to 4000pF at gain of 5.

Feature Summary

• Rail-to-rail input and output voltage ranges for low operating voltages
• Extremely low input bias currents suitable for high source impedance applications
• High capacitive load capability without frequency compensation required
• Symmetrical push-pull output drives with short circuit protection

Applications

• Voltage follower/buffer
• Photodiode amplifier
• Charge integrator
• Data acquisition systems
• Active filters

Procurement Notes

Verify the component matches the specific ALD1704BPAL designation including the PAL suffix which indicates an 8-pin PDIP package. Confirm RoHS compliance status as indicated by the 'L' suffix in ordering information. Ensure the operating temperature range aligns with the specified 0°C to +70°C for this package type. Check datasheet for absolute maximum ratings before integration.

Selection Notes

Select this component when rail-to-rail performance is required with low power consumption. It serves as an alternative to JFET input amplifiers where lower operating voltages are used. Consider its high input impedance and low bias current for precision signal conditioning. Verify that the 5V/µs slew rate meets the dynamic requirements of the application.

Part Context

The ALD1704 series includes variants like ALD1704A, ALD1704B, ALD1704, and ALD1704G with different offset voltage specifications. The BPAL variant specifically denotes the B grade offset characteristics housed in an 8-pin Plastic Dual In-Line Package. This family utilizes Advanced Linear Devices' enhanced ACMOS silicon gate process for reliability and cost-effectiveness.

Replacement Considerations

Direct substitutes include other parts from the ALD1704 family such as ALD1704APAL or ALD1704GPAL depending on offset voltage requirements. Cross-reference with general purpose rail-to-rail op-amps if pin compatibility is maintained. Verify electrical parameters match specific application needs before substitution.

FAQ

What is the maximum capacitive load the ALD1704BPAL can drive?

The device can drive up to 4000pF of capacitive load at a gain of 5.

Does the ALD1704BPAL require external frequency compensation?

No, the device is internally compensated for unity gain stability and does not require external frequency compensation.