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Product Detailed Parameters
- Description：IC DAC 12BIT LP 3V W/REF 16-QSOP
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Number of Bits：12
- Number of D/A Converters：1
- Settling Time：20µs (Typ)
- Output Type：Voltage - Buffered
- Differential Output：No
- Data Interface：SPI
- Reference Type：External, Internal
- Voltage - Supply, Analog：2.7V ~ 3.6V
- Voltage - Supply, Digital：2.7V ~ 3.6V
- INL/DNL (LSB)：±2 (Max), ±1 (Max)
- Architecture：R-2R
- Operating Temperature：-40°C ~ 85°C
- Package / Case：16-SSOP (0.154", 3.90mm Width)
- Supplier Device Package：16-QSOP
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
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Overview
The MAX5121BEEE+ is a 12-bit, voltage-output digital-to-analog converter (DAC) from Analog Devices/Maxim Integrated. Operating on a single +3V supply, it delivers a full-scale output range of +2.0475V using an internal precision bandgap reference of +1.25V. The device features a buffered output amplifier with a gain of 1.6384V/V and settles to ±0.5LSB within 20µs. It draws 500µA in normal operation, reducing to 3µA in power-down mode. The component utilizes a 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE standards.
Feature Summary
- 12-bit resolution with ±1 LSB INL and ±1 LSB DNL
- Internal +1.25V precision bandgap reference (10ppm/°C max)
- 3-wire serial interface (SPI/QSPI/MICROWIRE compatible)
- Power-down current of 3µA with software/hardware control
- Pin-programmable power-up reset (0V or mid-scale)
Applications
- Industrial process controls
- Automatic test equipment (ATE)
- Digital offset and gain adjustment
- Motion control systems
- Microprocessor-controlled systems
Procurement Notes
Verify the specific suffix 'B' indicates the extended industrial temperature range (-40°C to +85°C). Confirm package type is 16-pin QSOP. Check for RoHS compliance status as indicated by the '+' suffix. Ensure availability through authorized distributors as lead times may vary.
Selection Notes
Select the MAX5121BEEE+ when a single +3V supply is available and a full-scale output near +2.05V is required. Choose this over the MAX5120 if system voltage constraints preclude +5V operation. Consider pin-compatible upgrades like the MAX5131 for higher resolution requirements without PCB layout changes.
Part Context
This part belongs to the MAX5120/MAX5121 family of low-power, serial DACs. It is functionally identical to the MAX5120 but optimized for +3V operation. It shares the same 16-pin QSOP footprint as the MAX5130/MAX5131 (13-bit) and MAX5170/MAX5172 (14-bit) series, facilitating design scalability.
Replacement Considerations
For pin-compatible upgrades, consider the MAX5131BEEE+ (13-bit) or MAX5170BEEE+ (14-bit). Verify that the increased resolution meets system accuracy needs and that the supply voltage remains within the specified limits for the replacement device.
