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TPL8002-25PWR Folha de dados(PDF) 1 Page - Texas Instruments |
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TPL8002-25PWR Folha de dados(HTML) 1 Page - Texas Instruments |
1 / 10 page 1 GND 2 A 3 B 4 C 5 D 6 E 7 F RG1 PW PACKAGE (TOP VIEW) RF1 RSW1 V DD V EE RSW2 RF2 RG2 8 16 15 14 13 12 11 10 9 GND TPL8002-25 www.ti.com SLIS133 – NOVEMBER 2009 TANDEM 64-TAP DIGITAL POTENTIOMETER Check for Samples: TPL8002-25 1 FEATURES APPLICATIONS • Tandem Adjustable Feedback and Gain • Adjustable Gain From 23.25 dB to –24 dB Resistors for Operational Amplifers • 64-Tap Positions With 0.75 dB Per Step • Supports 8-MHz Analog Bandwidth • Operating Range up to –4-V VEE/+4-V VDD • 100- μA Maximum Static Supply Current • ±30% End-to-End Resistance Tolerance • Absolute Tolerance of ±0.3 dB • Operating Temperature Range From –40°C to 85°C • ESD Performance Tested Per JESD 22 – 2000-V Human-Body Model (A114-B,Class II) DESCRIPTION/ORDERING INFORMATION The TPL8002-25 is a programmable resistor device implementing two digital potentiometers with 64 wiper positions each that are tandem controlled through a 6-bit parallel interface. The device has fixed wiper resistances at the respective wiper contacts that tap the potentiometer resistors at a point determined by the binary code present at its digital inputs. The resistive wiper tap terminals, RSW, of the TPL8002-25 are typically connected to the inverting inputs (–) of an external differential path inverting operational amplifier configuration, with the non-inverting inputs (+) connected through to ground. The application's differential input to the configuration is the device's RG terminals. The differential output of the external operational amplifiers is connected to the device's RF terminals, and thus becomes the differential output of the application configuration. The resistance between the wiper contacts and the end points RG and RF of the TPL8002-25 provides a logarithmic gain/attenuation response of the configuration. With a digital code of decimal 0 (b000000) the configuration has an inverting maximum attenuation of –24 dB. With a digital code of decimal 32 (b100000) the configuration has inverting unity gain of 0.00 dB. With a digital code of decimal 63 (b111111) the configuration has an inverting maximum gain of +23.25 dB. The response of the configuration with respect to the digital code varies in fixed steps of 0.75 dB. ORDERING INFORMATION TA PACKAGE(1) (2) ORDERABLE PART NUMBER TOP-SIDE MARKING –40°C to 85°C TSSOP – PW Tape and reel TPL8002-25PWR PHY03A (1) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging. (2) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website at www.ti.com. 1 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. PRODUCTION DATA information is current as of publication date. Copyright © 2009, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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