MAX5175
Low-Power, Serial, 12-Bit DACs with Force-Sense Voltage-Output
Single, Serial, Voltage-Output DAC in a QSOP Package
Part Details
- ±1 LSB INL
- 1µA Shutdown Current
- "Glitch Free" Output Voltage at Power-Up
- Single-Supply Operation
- +5V (MAX5175)
- +3V (MAX5177)
- Full-Scale Output Range
- +2.048V (MAX5177, VREF = +1.25V)
- +4.096V (MAX5175, VREF = +2.5V)
- Rail-to-Rail Output Amplifier
- Adjustable Output Offset
- Low THD (-80dB) in Multiplying Operation
- SPI/QSPI/MICROWIRE-Compatible 3-Wire Serial Interface
- Programmable Shutdown Mode and Power-Up Reset (0 or midscale)
- Buffered Output Capable of Driving 4-20mA or 5kΩ || 100pF Loads
- User-Programmable Digital Output Pin Allows Serial Control of External Components
- 14-Bit Upgrades Available (MAX5171/MAX5173)
The MAX5175/MAX5177 low-power, serial, voltage-output, 12-bit digital-to-analog converters (DACs) feature a precision output amplifier in a space-saving 16-pin QSOP package. The MAX5175 operates from a single +5V supply, and the MAX5177 operates from a single +3V supply. The output amplifier's inverting input is available to allow specific gain configurations, remote sensing, and high output current capability. This makes the MAX5175/MAX5177 ideal for a wide range of applications, including industrial process control. Both devices draw only 260µA of supply current, which reduces to 1µA in shutdown mode. In addition, the programmable power-up reset feature allows for a user-selectable output voltage state of either 0 or midscale.
The 3-wire serial interface is compatible with SPI™, QSPI™, and MICROWIRE™ standards. An input register followed by a DAC register provides a double-buffered input, allowing the registers to be updated independently or simultaneously with a 16-bit serial word. Additional features include software and hardware shutdown, shutdown lockout, a hardware reset pin, and a reference input capable of accepting DC and offset AC signals. These devices provide a programmable digital output pin for added functionality and a serial-data output pin for daisy-chaining. All logic inputs are TTL/CMOS compatible and are internally buffered with Schmitt triggers to allow direct interfacing to optocouplers.
The MAX5175/MAX5177 incorporate a proprietary on-chip circuit that keeps the output voltage virtually "glitch free," limiting the glitches to a few millivolts during power-up. Both devices come in 16-pin QSOP packages and are specified for the extended (-40°C to +85°C) temperature range. The MAX5171/MAX5173 are 14-bit pin-compatible upgrades to the MAX5175/MAX5177. For pin-compatible DACs with an internal reference, see the 13-bit MAX5132/MAX5133 and 12-bit MAX5122/MAX5123.
Applications
- Digital Gain and Offset Control
- Digitally Programmable 4mA–20mA Current Loops
- General Purpose
- Industrial Process Controls
- Motion Control
- Remote Industrial Controls
Documentation
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
Parts | Product Life Cycle | Description |
---|---|---|
Product 2 | ||
MAX5174 | Obsolete | Low-Power, Serial, 12-Bit DACs with Voltage-Output |
MAX5176 | Low-Power, Serial, 12-Bit DACs with Voltage-Output | |
Single-Supply Voltage Output D/A Converters 4 | ||
MAX5122 | PRODUCTION | +5V/+3V, 12-Bit, Serial, Force/Sense DACs with 10ppm/°C Internal Reference |
MAX5123 | PRODUCTION | +5V/+3V, 12-Bit, Serial, Force/Sense DACs with 10ppm/°C Internal Reference |
MAX5352 | PRODUCTION | Low-Power, 12-Bit Voltage-Output DACs with Serial Interface |
MAX5353 | PRODUCTION | Low-Power, 12-Bit Voltage-Output DACs with Serial Interface |
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