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TLV5637 Datasheet(PDF) 4 Page - Texas Instruments |
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TLV5637 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 22 page www.ti.com ELECTRICAL CHARACTERISTICS TLV5637 SLAS224C – JUNE 1999 – REVISED JUNE 2007 Over recommended operating conditions (unless otherwise noted). POWER SUPPLY PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Fast 4.2 7 mA VDD = 5V, Int. ref. Slow 2 3.6 mA Fast 3.7 6.3 mA VDD = 3V, Int. ref. Slow 1.7 3.0 mA No load, All inputs = AGND or IDD Power supply current VDD, DAC latch = 0x800 Fast 3.8 6.3 mA VDD = 5V, Ext. ref. Slow 1.7 3.0 mA Fast 3.4 5.7 mA VDD = 3V, Ext. ref. Slow 1.4 2.6 mA Power-down supply current 0.01 10 µA Zero scale, See (1) 65 PSRR Power supply rejection ratio dB Full scale, See (2) 65 (1) Power supply rejection ratio at zero scale is measured by varying VDD and is given by: PSRR = 20 log [(EZS(VDDmax) – EZS(VDDmin))/VDDmax] (2) Power supply rejection ratio at full scale is measured by varying VDD and is given by: PSRR = 20 log [(EG(VDDmax) – EG(VDDmin))/VDDmax] STATIC DAC SPECIFICATIONS PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Resolution 10 bits INL Integral nonlinearity, end point adjusted See (1) ±0.4 ±1 LSB DNL Differential nonlinearity See (2) ±0.1 ±0.5 LSB EZS Zero-scale error (offset error at zero scale) See (3) ±24 mV EZSTC Zero-scale-error temperature coefficient See (4) 10 ppm/°C % full EG Gain error See (5) ±0.6 scale V EGTC Gain error temperature coefficient See (6) 10 ppm/°C OUTPUT SPECIFICATIONS VO Output voltage RL = 10kΩ 0 VDD–0.4 V % full Output load regulation accuracy VO= 4.096V, 2.048V, RL= 2 kΩ ±0.25 scale V (1) The relative accuracy or integral nonlinearity (INL) sometimes referred to as linearity error, 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. Tested from code 32 to 4095. (2) The differential nonlinearity (DNL) sometimes referred to as differential error, 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: EZS TC = [EZS (Tmax) – EZS (Tmin)]/Vref× 106/(Tmax– Tmin). (5) Gain error is the deviation from the ideal output (2Vref– 1LSB) with an output load of 10 k excluding the effects of the zero-error. (6) Gain temperature coefficient is given by: EG TC = [EG(Tmax) – EG (Tmin)]/Vref× 106/(Tmax– Tmin). 4 Submit Documentation Feedback |
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