ALD2711BSAL

Overview

The ALD2711BSAL is a dual micropower precision rail-to-rail CMOS operational amplifier manufactured by Advanced Linear Devices, Inc. It operates on single supplies from +2V to +10V or dual supplies from ±1V to ±5V. Key electrical characteristics include a unity gain bandwidth of 0.7MHz and a slew rate of 0.7V/µs at ±5V supply. Input bias current is typically 0.01pA with an input resistance exceeding 10^13Ω. The device features output short circuit protection and can drive up to 50pF capacitive loads. It is housed in an 8-pin Small Outline (SOIC) package.

Feature Summary

• Rail-to-rail input and output voltage swing capability for maximum dynamic range
• Micropower operation with extremely low input bias currents suitable for high-impedance sources
• Internal offset voltage trimming eliminates the need for external nulling circuits
• Robust design with output short circuit protection and ESD handling

Applications

• Photodiode amplifiers and picoammeters
• High-performance portable instruments
• Active filters and sample/hold amplifiers
• Sensor and transducer signal conditioning

Procurement Notes

Verify that the ordering suffix 'SAL' corresponds to the 8-pin SOIC plastic package variant. Confirm the operating temperature range aligns with your system requirements, as this specific package version is rated for 0°C to +70°C. Ensure static control procedures are followed during handling due to the device's sensitivity to electrostatic discharge.

Selection Notes

Select the ALD2711BSAL when designing circuits requiring low power consumption alongside high input impedance. The device is optimized for applications where signals must swing close to the supply rails without phase reversal. Consider the 0.7MHz bandwidth and 0.7V/µs slew rate for moderate-speed signal processing tasks within the specified voltage ranges.

Part Context

This component belongs to the ALD2711 family of dual monolithic CMOS operational amplifiers. The 'B' designation indicates specific input offset voltage performance criteria compared to the standard or 'A' variants. The 'SAL' suffix identifies the physical packaging as an 8-pin Small Outline Integrated Circuit (SOIC).

Replacement Considerations

Direct substitutes include the ALD2711ASAL and ALD2711SAL. Verify that alternative packages such as PDIP or CERDIP meet mechanical constraints if pinout compatibility is required across different form factors.

FAQ

Does the ALD2711BSAL require external components for frequency compensation?

No, the device is internally compensated for unity gain stability using a novel scheme that does not require external nulling resistors.

What is the common mode input voltage range relative to the supply rails?

The input stage operates linearly with voltages extending approximately 300mV beyond both the positive and negative supply rails.