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BUF20820 Datasheet(PDF) 3 Page - Texas Instruments |
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BUF20820 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 31 page  BUF08832 www.ti.com SBOS476C – AUGUST 2009 – REVISED JULY 2011 ELECTRICAL CHARACTERISTICS Boldface limits apply over the specified temperature range, TA = –40°C to +85°C. At TA = +25°C, VS = +18V, VSD = +2V, and CL = 200pF, unless otherwise noted. BUF08832 PARAMETER CONDITIONS MIN TYP MAX UNIT ANALOG GAMMA BUFFER CHANNELS Reset Value Code 512 9 V OUT 1, 8 Output Swing: High Code = 1023, Sourcing 10mA 17.7 17.85 V OUT 1, 8 Output Swing: Low Code = 0, Sinking 10mA 0.07 0.3 V OUT 2-7 Output Swing: High Code = 1023, Sourcing 10mA 17.5 17.85 V OUT 2-7 Output Swing: Low Code = 0, Sinking 10mA 0.07 0.5 V VCOM Output Swing: High (1) Sourcing/Sinking 400mA, G = 2 14 15.3 V VCOM Output Swing: Low (1) Sourcing/Sinking 400mA, G = 2 3.8 5 V VCOM Slew Rate (2) RLOAD = 60Ω, CLOAD = 100pF 45 V/ μs Continuous Output Current Note (3) 30 mA Output Accuracy(4) VCOM, codes 0 - 960; OUT 1 - 8, codes 0 - 1023 ±20 ±50 mV vs Temperature Code 512 ±25 μV/°C Integral Nonlinearity(4) INL 0.3 LSB Differential Nonlinearity(4) DNL 0.3 LSB Load Regulation, 10mA REG Code 512 or VCC/2, IOUT = +5mA to –5mA Step 0.5 1.5 mV/mA OTP MEMORY Number of OTP Write Cycles 16 Cycles Memory Retention 100 Years ANALOG POWER SUPPLY Operating Range 9 20 V Total Analog Supply Current IS Outputs at Reset Values, No Load 8.5 11 mA Over Temperature 11 mA DIGITAL Logic 1 Input Voltage VIH 0.7 × VSD V Logic 0 Input Voltage VIL 0.3 × VSD V Logic 0 Output Voltage VOL ISINK = 3mA 0.15 0.4 V Input Leakage ±0.01 ±10 μA Clock Frequency fCLK Standard/Fast Mode 400 kHz High-Speed Mode 3.4 MHz DIGITAL POWER SUPPLY Operating Range VSD 2.0 5.5 V Digital Supply Current(3) ISD Outputs at Reset Values, No Load, Two-Wire Bus Inactive 115 180 μA Over Temperature 115 μA TEMPERATURE RANGE Specified Range –40 +85 °C Operating Range Junction Temperature < +125°C –40 +95 °C Storage Range –65 +150 °C Thermal Resistance(3) θJA HTSSOP-20 See Note (5) 40 °C/W (1) The BUF08832 VCOM DAC limits can be programmed. These default limits apply if the device is not programmed. See the Programmable VCOM Limit Section. (2) See Figure 12, Large-Signal Step Response, VCOM. (3) Observe maximum power dissipation. (4) The VCOM output voltage is limited to codes 0 through 960; see Figure 3. This limitation is for VCOM only and does not affect DAC OUT, 1 through 8. (5) Thermal pad attached to printed circuit board (PCB), 0lfm airflow, and 76mm × 76mm copper area. Copyright © 2009–2011, Texas Instruments Incorporated 3 |
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