Maxim MAX538BCSA+, 12-bit voltage-output DAC, SPI data interface, R-2R architecture, 25µs settling time, ±1 LSB INL/DNL, single 5V supply, 0°C to 70°C, 8-SOIC package, Tube.
| Parameter | Value |
|---|---|
| Output type | Voltage - Buffered |
| Mounting | Surface Mount |
| Reference type | External |
| Voltage - supply, analog | 5V |
| Voltage - supply, digital | 5V |
| Data interface | SPI |
| Operating temperature | 0°C ~ 70°C |
| Package | Tube |
| Architecture | R-2R |
| INL (DNL) | ±1 (Max), ±1 (Max) |
| Settling time | 25µs (Typ) |
| Number of bits | 12 |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Differential output | No |
| Number of d (A converters) | 1 |
The Maxim MAX538BCSA+ is a single-channel, 12-bit digital-to-analog converter with a buffered voltage output and an R-2R ladder architecture. It communicates over a standard SPI interface.
Both the analog and digital supply rails are tied to a single 5 V rail.
Surface-mount assembly with no exposed pad, so no thermal-via stitching needed.
For BOM planning, there is no imminent obsolescence risk.
The MAX538AESA+ is the same 12-bit SPI DAC but in an extended temperature range (-40°C to +85°C) versus the commercial 0°C to 70°C range of the MAX538BCSA+. If your design needs to operate below freezing or above 70°C ambient, the AESA+ variant is the correct choice; otherwise the BCSA+ is functionally identical at a lower cost.
The MAX538BCSA+ has a buffered voltage output, meaning the DAC output is internally buffered with an op-amp, so it can drive moderate loads directly without an external buffer.