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TLC5628 Datasheet(PDF) 7 Page - Texas Instruments |
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TLC5628 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 13 page TLC5628C, TLC5628I OCTAL 8-BIT DIGITAL-TO-ANALOG CONVERTERS SLAS089E – NOVEMBER 1994 – REVISED APRIL 1997 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range, VDD = 5 V ± 5%, Vref = 2 V, × 1 gain output range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT IIH High-level input current VI = VDD ±10 µA IIL Low-level input current VI = 0 V ±10 µA IO(sink) Output sink current Each DAC output 20 µA IO(source) Output source current Each DAC output 2 mA Ci Input capacitance 15 pF Ci Reference input capacitance 15 pF IDD Supply current VDD = 5 V 4 mA Iref Reference input current VDD = 5 V, Vref = 2 V ±10 µA EL Linearity error (end point corrected) Vref = 2 V, × 2 gain (see Note 1) ±1 LSB ED Differential-linearity error Vref = 2 V, × 2 gain (see Note 2) ±0.9 LSB EZS Zero-scale error Vref = 2 V, × 2 gain (see Note 3) 0 30 mV Zero-scale-error temperature coefficient Vref = 2 V, × 2 gain (see Note 4) 10 µV/°C EFS Full-scale error Vref = 2 V, × 2 gain (see Note 5) ±60 mV Full-scale-error temperature coefficient Vref = 2 V, × 2 gain (see Note 6) ±25 µV/°C PSRR Power supply rejection ratio See Notes 7 and 8 0.5 mV/V NOTES: 1. Integral nonlinearity (INL) is the maximum deviation of the output from the line between zero and full scale (excluding the effects of zero code and full-scale errors). 2. Differential nonlinearity (DNL) is the difference between the measured and ideal 1 LSB amplitude change of any two adjacent codes. Monotonic means the output voltage changes in the same direction (or remains constant) as a change in the digital input code. 3. Zero-scale error is the deviation from zero voltage output when the digital input code is zero. 4. Zero-scale-error temperature coefficient is given by: ZSETC = [ZSE(Tmax) – ZSE(Tmin)]/Vref × 106/(Tmax – Tmin). 5. Full-scale error is the deviation from the ideal full-scale output (Vref – 1 LSB) with an output load of 10 kΩ. 6. Full-scale error temperature coefficient is given by: FSETC = [FSE(Tmax) – FSE (Tmin)]/Vref × 106/(Tmax – Tmin). 7. Zero-scale-error rejection ratio (ZSE RR) is measured by varying the VDD from 4.5 V to 5.5 V dc and measuring the proportion of this signal imposed on the zero-code output voltage. 8. Full-scale-error rejection ratio (FSE RR) is measured by varying the VDD from 4.5 V to 5.5 V dc and measuring the proportion of this signal imposed on the full-scale output voltage. operating characteristics over recommended operating free-air temperature range, VDD = 5 V ± 5%, Vref = 2 V, × 1 gain output range (unless otherwise noted) TEST CONDITIONS MIN TYP MAX UNIT Output slew rate CL = 100 pF, RL = 10 kΩ 1 V/ µs Output settling time To ±0.5 LSB, CL = 100 pF, RL = 10 kΩ, See Note 9 10 µs Large signal bandwidth Measured at – 3 dB point 100 kHz Digital crosstalk CLK = 1-MHz square wave measured at DACA-DACD –50 dB Reference feedthrough See Note 10 –60 dB Channel-to-channel isolation See Note 11 –60 dB Reference input bandwidth See Note 12 100 kHz NOTES: 9. Settling time is the time between a LOAD falling edge and the DAC output reaching full-scale voltage within ±0.5 LSB starting from an initial output voltage equal to zero. 10. Reference feedthrough is measured at any DAC output with an input code = 00 hex with a Vref input = 1 V dc + 1 Vpp at 10 kHz. 11. Channel-to-channel isolation is measured by setting the input code of one DAC to FF hex and the code of all other DACs to 00 hex with Vref input = 1 V dc + 1 Vpp at 10 kHz. 12. Reference bandwidth is the –3 dB bandwidth with an input at Vref = 1.25 V dc + 2 Vpp and with a full-scale digital input code. |
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