AD5341BRUZ-REEL7 Integrated Circuits (ICs)

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1. DESCRIPTION

The AD5341BRUZ-REEL7 are single 12-bit DACs. They operate from a 2.5 V to 5.5 V supply consuming just 115 μA at 3 V and feature a power-down mode that further reduces the current to 80 nA. The devices incorporate an on-chip output buffer that can drive the output to both supply rails, but the AD5341BRUZ-REEL7 allow a choice of buffered or unbuffered reference input. The AD5341BRUZ-REEL7 have a parallel interface. CS selects the device and data is loaded into the input registers on the rising edge of WR. The GAIN pin allows the output range to be set at 0 V to VREF or 0 V to 2 × VREF. Input data to the DACs is double-buffered, allowing simultaneous update of multiple DACs in a system using the LDAC pin. An asynchronous CLR input is also provided, which resets the contents of the input register and the DAC register to all zeros. These devices also incorporate a power-on reset circuit that ensures that the DAC output powers on to 0 V and remains there until valid data is written to the device. The AD5341BRUZ-REEL7 are available in thin shrink small outline packages (TSSOP).

2. FEATURES

    1. AD5341: single 12-bit DAC in 20-lead TSSOP

    2. Low power operation: 115 μA @ 3 V, 140 μA @ 5 V

    3. Power-down to 80 nA @ 3 V, 200 nA @ 5 V via PD Pin

    4. 2.5 V to 5.5 V power supply

    5. Double-buffered input logic

    6. Guaranteed monotonic by design over all codes

    7. Buffered/unbuffered reference input options

    8. Output range: 0 V to VREF or 0 V to 2 × VREF

    9. Power-on reset to 0 V

  10. Simultaneous update of DAC outputs via LDAC pin

  11. Asynchronous CLR facility

  12. Low power parallel data interface

  13. On-chip rail-to-rail output buffer amplifiers

  14. Temperature range: −40°C to +105°C

3. APPLICATIONS

    1. Portable battery-powered instruments

    2. Digital gain and offset adjustment

    3. Programmable voltage and current sources

    4. Programmable attenuators

    5. Industrial process control