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  • DAC8820: DAC8820

    Part Number: DAC8820 Other Parts Discussed in Thread: OPA828 , Tool/software: Using a DAC8820 with a OPA828 (+/- 15v), VRef=-12.5v When the digital value input to the DAC represents a “large” jump (Decimal 65,536 to 20,000 for the DAC falling edge scenario…

  • DAC8820: Suggestions required for a low noise, fast settling DAC for pretuning VCO in a PLL

    Part Number: DAC8820 Other Parts Discussed in Thread: TLC7524 , , OPA2277 , THS4031 Hello I need some suggestions to select a fast settling DAC part which I want to use to pretune a VCO inside of a PLL loop for faster frequency switching time (< 1 us). I…
    • Answered

  • DAC8820: Impact of input offset voltage of following op-amp and high slew rate

    Resolved
    Part Number: DAC8820 Other Parts Discussed in Thread: OPA227 , , OPA827 , OPA828 Data sheet recommends using OPA227 with the DAC8820 due to its low input offset voltage (+/-5uV). However, OPA227 slew rate (2.3V/usec) is too slow . I have searched for op-amps…
    • Resolved

  • DAC8820: Characterization Data for Current Consumption during Code Change

    TI Thinks Resolved
    Part Number: DAC8820 Other Parts Discussed in Thread: TIPD194 [1] Do we have any characterization showing the digital/reference current consumption transients during an output code change/update? [2] The datasheet has Figure 7. It seems like this graph shows…

  • DAC8820: Question about Datasheet Figures

    TI Thinks Resolved
    Part Number: DAC8820 Just a question on the DAC8820 datasheet. Figure 13 ~ 14 shows FS error vs TEMP. What did the circuit look like to get this data? The DAC8820 is a current-output device; and the y-axis is in [mV] thus the confusion...

  • DAC8820: Questions about Voltage Reference in 4-Quadrant Operation

    TI Thinks Resolved
    Part Number: DAC8820 Other Parts Discussed in Thread: REF5010 , OPA227 I am looking at Figure 42 from the datasheet, the EVM, and this Reference Design. First, let me confirm my understanding on the operation. (Voltage Mode - 4-Quadrant Mode) A reference…
    • Answered

  • OPA2277: Output Stage of DAC8820

    Resolved
    Part Number: OPA2277 Other Parts Discussed in Thread: DAC8820 , OPA2182 , OPA2210 , OPA2192 , OPA2810 , OPA277 , TINA-TI The OPA2277 is being recommended for the output stage of DAC8820. However I noticed the settling time to a voltage step input is ~16us typical…
    • Resolved
    • Answered

  • DAC8820: Output voltage of DAC8820

    Resolved
    Part Number: DAC8820 Hello, I am considering analog output circuit that circuit is used DAC8820. And I am considering this circuit by referring to the contents of Fig. 42 of the DAC8820 data sheet. I want to make sure that the output voltage of the circuit…
    • Resolved
    • Answered

  • DAC8820: Equation of output volatge error

    Resolved
    Part Number: DAC8820 Hello, I am considering DAC circuit that circuit is using DAC8820IC and OP277UA and REF5010I based on figure 42 on DAC8820 data sheet. Also I am anlysing output voltage error for this circuit. I would like to inquire output voltage…
    • Resolved

  • DAC8820: Settling time clarification

    TI Thinks Resolved
    Part Number: DAC8820 Other Parts Discussed in Thread: OPA2277 , OPA277 Hi All, I am using DAC8820ICDBR in Bipolar mode of operation(-10V to +10V) with -10V as Vref in my design. For DAC8820ICDBR, settling time for switching from -10V to +10V is 28us . But…

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