MAX5438 Overview
The MAX5436 MAX5439 are 128-tap high-voltage (±5V to ±15V) digital potentiometers in packages that are half the size of parable devices in 8-pin SO. They perform the same function as mechanical potentiometers, but replace the mechanics with a simple digital interface. The digital logic is powered by a separate single +2.7V to +5.25V supply voltage (VCC).
MAX5438 Key Features
- +10V to +30V Single-Supply Operation
- 28V to -10V Single Negative Supply Operation
- ±5V to ±15V Dual-Supply Operation
- 128 Tap Positions
- Unmitted High-Voltage Amplifier (MAX5437/MAX5439)
- Low Temperature Coefficient 35ppm/°C (End-to-End) 5ppm/°C (Ratiometric)
- Small-Footprint Packages 10-Pin µMAX (MAX5436/MAX5438) 14-Pin TSSOP (MAX5437/MAX5439)
- Glitchless Switching Between the Resistor Taps
- 3-Wire SPI/QSPI/MICROWIRE-patible Serial Interface
- 50kΩ/100kΩ End-to-End Resistances