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TLV1578IDA Datasheet(PDF) 1 Page - Texas Instruments |
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TLV1578IDA Datasheet(HTML) 1 Page - Texas Instruments |
1 / 34 page TLV1571, TLV1578 2.7 V TO 5.5 V, 1-/8-CHANNEL, 10-BIT, PARALLEL ANALOG-TO-DIGITAL CONVERTERS SLAS170D –MARCH 1999 – REVISED JULY 2000 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 features D Fast Throughput Rate: 1.25 MSPS at 5 V, 625 KSPS at 3 V D Wide Analog Input: 0 V to AVDD D Differential Nonlinearity Error: < ± 1 LSB D Integral Nonlinearity Error: < ± 1 LSB D 8-to-1 Analog MUX – TLV1578 D Internal OSC D Single 2.7-V to 5.5-V Supply Operation D Low Power: 12 mW at 3 V and 35 mW at 5 V D Auto Power Down of 1 mA Max D Software Power Down: 10 µA Max D Hardware Configurable D DSP and Microcontroller Compatible Parallel Interface D Binary/Twos Complement Output D Hardware Controlled Extended Sampling D Channel Sweep Mode Operation and Channel Select D Hardware or Software Start of Conversion applications D Mass Storage and HDD D Automotive D Digital Servos D Process Control D General-Purpose DSP D Image Sensor Processing description The TLV1571/1578 is a 10-bit data acquisition system that combines an 8-channel input multiplexer (MUX), a high-speed 10-bit ADC, and a parallel interface. The device contains two on-chip control registers allowing control of channel selection, software conversion start, and power down via the bidirectional parallel port. The control registers can be set to a default mode by applying a dummy RD signal when WR is tied low. This allows the TLV1571/1578 to be configured by hardware. The MUX is independently accessible. This allows the user to insert a signal conditioning circuit such as an antialiasing filter or an amplifier, if required, between the MUX and the ADC. Therefore, one signal conditioning circuit can be used for all eight channels. The TLV1571 is a single channel analog input device with all the same functions as the TLV1578. The TLV1571/ TLV1578 operates from a single 2.7-V to 5.5-V power supply. It accepts an analog input range from 0 V to AVDD and digitizes the input at a maximum 1.25 MSPS throughput rate at 5 V. The power dissipations are only 12 mW with a 3-V supply or 35 mW with a 5-V supply. The device features an auto power-down mode that automatically powers down to 1 mA 50 ns after conversion is performed. In software power-down mode, the ADC is further powered down to only 10 µA. Copyright © 2000, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 CH0 CH1 CH2 CH3 CS WR RD CLK DGND DVDD INT/EOC D0 D1 D2 D3 D4 CH7 CH6 CH5 CH4 MO AIN AVDD AGND REFM REFP CSTART D9/A1 D8/A0 D7 D6 D5 TLV1578 DA PACKAGE (TOP VIEW) NC – No internal connection 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 CS WR RD CLK DGND DVDD INT/EOC D0 D1 D2 D3 D4 NC AIN AVDD AGND REFM REFP CSTART D9/A1 D8/A0 D7 D6 D5 TLV1571 DW OR PW PACKAGE (TOP VIEW) |
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