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Analog Devices MAX543BCPA+ — Analog & Data Acquisition

MAX543BCPA+ 12-bit DAC, R-2R, SPI, 1µs settling, 8-PDIP

MPNMAX543BCPA+
End of Life

Maxim Integrated MAX543BCPA+, 12-bit multiplying DAC, Current - Unbuffered output, R-2R architecture, SPI data interface, 1µs settling time, ±1 LSB INL/DNL, 8-DIP through-hole package, 0°C to 70°C operating range.

$21.99Ref. price · indicative, final on quote
Packaging8-DIP (0.300", 7.62mm)
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX543BCPA+ specifications
ParameterValue
Output typeCurrent - Unbuffered
MountingThrough Hole
Reference typeExternal
Voltage - supply, analog5V, 11.4V ~ 15.75V
Voltage - supply, digital5V, 11.4V ~ 15.75V
InterfaceSPI
Operating temperature0°C ~ 70°C
PackageTube
ArchitectureR-2R
INL (DNL)±1 (Max), ±1 (Max)
Settling time1µs
Number of bits12
Case8-DIP (0.300\", 7.62mm)
Differential outputNo
Number of d (A converters)1

Product details

12-bit multiplying DAC in a through-hole DIP

The Maxim Integrated MAX543BCPA+ is a 12-bit multiplying digital-to-analog converter built around an R-2R ladder architecture. It delivers a current output (unbuffered) and connects to a host controller via an SPI data interface. The 1 µs settling time and ±1 LSB max INL/DNL make it suited for calibration sources, programmable gain stages, and low-frequency waveform generation where monotonic 12-bit performance is the requirement.

Supply rails and reference — two supplies, one external reference

The DAC uses dual supply rails: the digital interface takes 5 V, while the analog supply accepts 5 V or 11.4 V to 15.75 V. The reference is external.

Package and temperature grade — prototype-friendly, indoor only

Housed in an 8-pin PDIP through-hole package (0.300" width, 7.62 mm pitch), this DAC is breadboard-friendly and easy to hand-solder for prototypes or low-volume production.

There is no NRND or last-time-buy notice in effect.

Frequently asked questions

Is MAX543BCPA+ RoHS compliant?

Yes, the part is ROHS3 compliant per the manufacturer's listing.

Is MAX543BCPA+ compatible with 5V logic?

Yes. The digital supply voltage is 5 V, so the SPI inputs accept standard 5 V logic levels directly. For 3.3 V systems, check the VIH threshold and consider a level shifter.

What is the closest pin-compatible alternative to MAX543BCPA+?

Within Maxim's own family, the MAX543 series includes multiple grades with the same pinout and 8-PDIP package. The MAX543BCPA+ is the commercial-temperature ±1 LSB grade. An industrial-temperature or higher-accuracy grade (e.g., MAX543BEPA+) would be a drop-in replacement if the application requires a wider temperature range or tighter linearity — verify the specific grade's INL/DNL and temp range against your requirements.