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Precision DACs (≤10 MSPS)

DAC121S101-SEP

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Radiation-tolerant, single-channel low-power (0.57mW), 12-bit 5.5V digital-to-analog converter

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Data sheet

DAC121S101-SEP

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 12 Number of DAC channels 1 Interface type SPI Output type Buffered Voltage Output voltage range (V) 0 to 5.5 INL (max) (±LSB) 8 Settling time (µs) 8 Reference type Ext Architecture String Rating Space Features Low Power Sample/update rate (Msps) 1.8 Power consumption (typ) (mW) 0.561 Operating temperature range (°C) -55 to 125 Product type General-purpose DAC
Resolution (Bits) 12 Number of DAC channels 1 Interface type SPI Output type Buffered Voltage Output voltage range (V) 0 to 5.5 INL (max) (±LSB) 8 Settling time (µs) 8 Reference type Ext Architecture String Rating Space Features Low Power Sample/update rate (Msps) 1.8 Power consumption (typ) (mW) 0.561 Operating temperature range (°C) -55 to 125 Product type General-purpose DAC
VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm)
  • Radiation tolerance:
    • Total ionizing dose (TID): 30krad (Si)
    • Single-event latch-up (SEL): 43MeV-cm2/mg
    • Single-event functional interrupt (SEFI): 43MeV-cm2/mg
  • Space-enhanced plastic (space EP):
    • Outgassing test performed per ASTM E595
    • Vendor item drawing (VID) V62/24641
    • Supports defense and aerospace application temperature range: –55°C to +125°C
    • Controlled baseline
    • One assembly and test site
    • One fabrication site
    • Extended product life cycle
    • Product traceability
  • Specified monotonicity
  • Low-power operation
  • Rail-to-rail voltage output
  • Power-on reset to zero-scale output
  • Wide power-supply range of 2.7V to 5.5V
  • Small package:
    • 8-pin VSSOP (3mm × 3mm)
  • Power-down feature
  • Key specifications:
    • 12-bit resolution
    • DNL: −0.15LSB, +0.35LSB (typical)
    • 12µs output settling time (typical)
    • 4mV zero-code error (typical)
    • Full-scale error at −0.07%FSR (typical)
  • Radiation tolerance:
    • Total ionizing dose (TID): 30krad (Si)
    • Single-event latch-up (SEL): 43MeV-cm2/mg
    • Single-event functional interrupt (SEFI): 43MeV-cm2/mg
  • Space-enhanced plastic (space EP):
    • Outgassing test performed per ASTM E595
    • Vendor item drawing (VID) V62/24641
    • Supports defense and aerospace application temperature range: –55°C to +125°C
    • Controlled baseline
    • One assembly and test site
    • One fabrication site
    • Extended product life cycle
    • Product traceability
  • Specified monotonicity
  • Low-power operation
  • Rail-to-rail voltage output
  • Power-on reset to zero-scale output
  • Wide power-supply range of 2.7V to 5.5V
  • Small package:
    • 8-pin VSSOP (3mm × 3mm)
  • Power-down feature
  • Key specifications:
    • 12-bit resolution
    • DNL: −0.15LSB, +0.35LSB (typical)
    • 12µs output settling time (typical)
    • 4mV zero-code error (typical)
    • Full-scale error at −0.07%FSR (typical)

The DAC121S101-SEP device is a full-featured, general-purpose, 12-bit voltage-output digital-to-analog converter (DAC) that can operate from a single 2.7V to 5.5V supply and consumes just 177µA (typical) of current at 3.6V. The on-chip output amplifier allows rail-to-rail output swing and the three wire serial interface operates at clock rates up to 30MHz over the specified supply voltage range and is compatible with standard SPI, QSPI, MICROWIRE and DSP interfaces.

The supply voltage serves as the voltage reference for the DAC121S101-SEP, providing the widest possible output dynamic range. A power-on reset circuit powers up the DAC output to zero volts until there is a valid write to the device. A power-down feature reduces power consumption to less than a microwatt (typical).

The DAC121S101-SEP device is a full-featured, general-purpose, 12-bit voltage-output digital-to-analog converter (DAC) that can operate from a single 2.7V to 5.5V supply and consumes just 177µA (typical) of current at 3.6V. The on-chip output amplifier allows rail-to-rail output swing and the three wire serial interface operates at clock rates up to 30MHz over the specified supply voltage range and is compatible with standard SPI, QSPI, MICROWIRE and DSP interfaces.

The supply voltage serves as the voltage reference for the DAC121S101-SEP, providing the widest possible output dynamic range. A power-on reset circuit powers up the DAC output to zero volts until there is a valid write to the device. A power-down feature reduces power consumption to less than a microwatt (typical).
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet DAC121S101-SEP 12-Bit, Micro Power, RRO Digital-to-Analog Converter datasheet PDF | HTML Dec 11, 2024
* Radiation & reliability report DAC121S101-SEP Single-Event Latch-Up (SEL) Radiation Report1 (Rev. A) PDF | HTML Jun 25, 2026
* Radiation & reliability report DAC121S101-SEP Radiation Tolerant, CMOS, 12-Bit Digital to Analog Converter (DAC) TID Report PDF | HTML Dec 12, 2024
* Radiation & reliability report DAC121S101-SEP Production Flow and Reliability Report PDF | HTML Dec 11, 2024
Application brief Space Grade 12A Laser Diode Driver PDF | HTML Feb 17, 2026

Design & development

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Evaluation board

DAC121S101SEPEVM — DAC121S101-SEP evaluation module

The DAC121S101-SEP evaluation module (EVM) is an easy-to-use platform to evaluate the functionality and performance of the DAC121S101-SEP device. The EVM has optional circuits and jumpers to configure the device for different applications.

The DAC121S101-SEP device is a full-featured, (...)

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GUI for evaluation module (EVM)

DAC121S101SEPEVM-GUI — Labview GUI for the DAC121S101SEPEVM

The DAC121S101SEPEVM-GUI is a windows-based software GUI that controls the DAC121S101SEPEVM through SPI communications using the FTDI4232 interface adapter tool.
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VSSOP (DGK) 8 Ultra Librarian
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