Analog Devices Inc. LT6023IDD#PBF

Overview

LT6023IDD#PBF from Analog Devices (formerly Linear Technology) is a dual micropower precision rail-to-rail output operational amplifier in an 8-lead 3mm × 3mm DFN package. It delivers 1.4V/µs slew rate, 40kHz gain-bandwidth product, ≤30µV input offset voltage (MS8 grade), 20µA/amplifier supply current, and operates from 3V to 30V supplies - ideal for low-power multiplexed ADC buffers and DAC output stages.

For engineers reviewing the LT6023IDD#PBF datasheet, LT6023IDD#PBF pinout, LT6023IDD#PBF application, or LT6023IDD#PBF equivalent, key selection criteria include its high dynamic input impedance during large input transients (up to ±5V), fast 124µs 0.0015% settling time, no output phase inversion, and guaranteed rail-to-rail output swing down to 60mV from rails at 10kΩ load.

Technical Context

The LT6023IDD#PBF uses a proprietary dual-input-stage topology combining NPN and PNP differential pairs to maintain high input impedance during large common-mode steps while enabling enhanced slew rate without sacrificing DC precision. Its input stage operates within V– + 1.2V to V+ – 1.4V, with CMRR ≥116dB and PSRR ≥110dB over 3V–30V supply range.

It features rail-to-rail output drive capability (±14.5V swing on ±15V supplies), 140GΩ common-mode input resistance, and 132nV/√Hz input voltage noise density at 1kHz. The device exhibits no phase inversion even when inputs exceed the specified common-mode range, though open-loop gain degrades outside V– + 1.2V to V+ – 1.4V.

Key Specifications

Pinout & Package

LT6023IDD#PBF is housed in an 8-lead 3mm × 3mm plastic DFN package (DD package) with exposed pad connected to V–. Pin 1 is marked by top-side dot; exposed pad improves thermal performance (θJA = 43°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision op-amp applications.

Compared with LTC2057HMS8#PBF and OPA333AIDR, LT6023IDD#PBF uniquely balances micropower operation (20µA), fast slew (1.4V/µs), and high dynamic input impedance - making it optimal for multiplexed, battery-powered signal chains where both speed and power efficiency are constrained.

Availability

LT6023IDD#PBF is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical instrumentation, and low-power data acquisition systems requiring stable component supply with guaranteed long-term availability.

Supply support for LT6023IDD#PBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices acquired Linear Technology in 2017 and maintains its precision analog portfolio, known for high-performance op-amps, references, and signal conditioning ICs targeting demanding industrial and instrumentation applications.

The LT6023IDD#PBF belongs to Linear's micropower precision op-amp family, engineered specifically for applications requiring simultaneous low power, fast settling, and high DC accuracy - such as multiplexed sensor front-ends and portable measurement equipment.

FAQ

What is the maximum supply voltage for LT6023IDD#PBF?

The absolute maximum total supply voltage (V+ to V–) for LT6023IDD#PBF is 36V. The device is fully specified from 3V to 30V total supply range, with guaranteed performance including PSRR ≥110dB and rail-to-rail output swing across that span. Operation above 30V is not characterized and may compromise reliability or parametric guarantees.

Does LT6023IDD#PBF support true rail-to-rail input operation?

No, LT6023IDD#PBF does not support rail-to-rail input operation. Its input common-mode range is specified from V– + 1.2V to V+ – 1.4V. However, the output is rail-to-rail, and the device can be used in inverting or noninverting configurations where inputs remain within that range while outputs swing fully - as demonstrated in Figure 2 and Figure 3 of the LT6023 datasheet.

What is the typical settling time of LT6023IDD#PBF for a 10V step?

The typical settling time of LT6023IDD#PBF for a 10V output step at unity gain (AV = 1) is 132µs to 0.0015% accuracy. This value is measured under standard conditions (TA = –40°C to 85°C, RL = 10kΩ) and reflects its optimized architecture for fast settling in multiplexed data acquisition systems.

Can LT6023IDD#PBF drive capacitive loads?

Yes, LT6023IDD#PBF can drive up to 100pF capacitive loads in unity-gain configuration without instability. For larger capacitances or higher gains, adding a small series resistor (e.g., 10–50Ω) between the output and load improves phase margin. Stability is further enhanced using proper PCB layout and bypass capacitors on V+ and V– pins.

Is LT6023IDD#PBF pin-compatible with LT6023IMS8#PBF?

Yes, LT6023IDD#PBF and LT6023IMS8#PBF share identical pin functions and electrical specifications, differing only in package type: 8-lead 3mm × 3mm DFN versus 8-lead MSOP. Both use the same pinout (OUTA, –INA, +INA, V–, V+, OUTB, –INB, +INB), allowing direct PCB footprint substitution where thermal or board-space constraints permit.