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DAC7634 Datasheet(PDF) 4 Page - Texas Instruments |
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DAC7634 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 31 page  www.ti.com SPECIFICATIONS DAC7634 SBAS134B – JULY 2004 – REVISED DECEMBER 2005 At T A = TMIN to TMAX, VDD = VCC = 5 V, VSS = 0 V, VREFH = 2.5 V, and VREFL = 0 V, unless otherwise noted DAC7634E DAC7634EB PARAMETER TEST CONDITIONS UNIT MIN TYP MAX MIN TYP MAX ACCURACY Linearity error(1) ±3 ±4 ±2 ±3 LSB Linearity match ±4 ±2 LSB Differential linearity error ±2 ±3 ±1 ±2 LSB Monotonicity, TMIN to TMAX 14 15 Bits Zero-scale error ±1 ±2 ±1 ±2 mV Zero-scale error drift 5 10 5 10 ppm/°C Full-scale error ±1 ±2 ±1 ±2 mV Full-scale error drift 5 10 5 10 ppm/°C Zero-scale matching Channel-to-channel matching ±1 ±2 ±1 ±2 mV Full-scale matching Channel-to-channel matching ±1 ±2 ±1 ±2 mV Power supply rejection ratio (PSRR) At full scale 10 100 10 100 ppm/V ANALOG INPUT Voltage output 0 VREFH 0 VREFH V VREFL = 0 V, VSS = 0 V, RL = 10 kΩ Output current – 1.25 1.25 –1.25 1.25 mA Maximum load capacitance No oscillation 500 500 pF Short-circuit current ±30 ±30 mA Short-circuit duration GND or VCC Indefinite Indefinite REFERENCE INPUT VREFL VREFL Ref high input voltage range 2.5 2.5 V +1.25 +1.25 VREFH VREFH Ref low input voltage range 0 0 V –1.25 –1.25 Ref high input current 250 250 µA Ref low input current –250 –250 µA DYNAMIC PERFORMANCE Settling time To ±0.003%, 2.5-V output step 8 10 8 10 µs Channel-to-channel crosstalk See Figure 6 0.5 0.5 LSB Digital feedthrough 2 2 nV-s Output noise voltage f = 10 kHz 60 60 nV/ √Hz 7FFFH to 8000H or DAC glitch 40 40 nV-s 8000H to 7FFFH DIGITAL INPUT VIH 0.7 × VDD 0.7 × VDD V VIL 0.3 × VDD 0.3 × VDD V IIH ±10 ±10 µA IIL ±10 ±10 µA DIGITAL OUTPUT VOH IOH = –0.8 mA 3.6 4.5 3.6 4.5 V VOL IOL = 1.6 mA 0.3 0.4 0.3 0.4 V POWER SUPPLY VDD 4.75 5.0 5.25 4.75 5.0 5.25 V VCC 4.75 5.0 5.25 4.75 5.0 5.25 V VSS 0 0 0 0 0 0 V ICC 1.5 2 1.5 2 mA IDD 50 50 µA Power 7.5 10 7.5 10 mW (1) If VSS = 0 V specification applies at Code 0040H and above due to possible negative zero-scale error. 4 |
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