Analog Devices Inc./Maxim Integrated MAX5426AEUD

The MAX5426 combines precision fixed resistors and digitally selected resistor paths for gain programming. It is designed for the conventional three-operational-amplifier instrumentation-amplifier topology. The A-grade MAX5426AEUD order code specifies 0.025% gain-range accuracy over the stated operating range. An OFFSET connection allows a DC offset to be introduced in the final differential stage.

The original manufacturer ordering table identifies MAX5426AEUD as a 14-pin TSSOP device. LCDChip's source record describes the case as 14-TSSOP (0.173 inch, 4.40 mm width), and its package register uses the normalized name 14-TSSOP. Check the manufacturer's mechanical drawing and device orientation before creating or approving a PCB footprint.

Assembly checks

• Confirm the complete order code and 14-pin TSSOP outline.
• Match the top-view pin diagram to PCB pin-one orientation.
• Confirm solder process and material compliance for the original no-plus order code.

The registered JPG is currently missing and must be supplied and visually checked before publication.

Pin assignments follow the manufacturer's MAX5426 pin-description table; consult its pin diagram for physical orientation.

The 36 microampere current is a typical value, not a guaranteed maximum. The supply range is an operating range, not an absolute-maximum stress rating.

The manufacturer documentation also names MAX5426BEUD and MAX5426CEUD, but their gain-range accuracy grades differ from the A-grade device. Neither is an automatic equivalent for a design requiring 0.025% accuracy. Verify the complete order code, temperature grade, material compliance and sourcing status before substituting either grade.

The plus-suffix MAX5426AEUD+ exists as a separate LCDChip catalog model. A manufacturer lead-free conversion notice distinguishes the original no-plus part from the plus-suffix version. Do not equate these order codes for compliance or procurement without checking the current manufacturer change notice. No internal link is shown because the catalog entry is unpublished.

MAX5426 was documented by Maxim Integrated and appears in Analog Devices' maintained data-sheet archive. The original Rev. 0 ordering table explicitly identifies MAX5426AEUD. The current ADI product page lists plus-suffix variants and indicates last-time-buy status; reconfirm the lifecycle and availability of the exact no-plus part before procurement or a new design.

Verify the exact no-plus MAX5426AEUD order code, device marking, 14-pin TSSOP outline and traceability documents on receipt. A plus suffix can identify a different material-compliance version. The absent catalog JPG cannot establish identity; compare physical samples with manufacturer-controlled drawings and purchasing documentation.

Use the manufacturer data sheet for external-amplifier selection, resistor-terminal wiring, logic levels, power bypassing and mechanical design. Verify the original no-plus material-compliance status. Distributor stock and prices require a fresh quotation for this exact order code; currently visible listings conflict. The package illustration remains unavailable, so this product must stay unpublished pending review.