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DAC1220EG4 数据表(PDF) 1 Page - Texas Instruments |
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DAC1220EG4 数据表(HTML) 1 Page - Texas Instruments |
1 / 26 page DAC1220 Clock Generator Serial Interface 2nd−Order ∆Σ Modulator Instruction Register Command Register Data Register Offset Register Full−Scale Register Microcontroller 1st−Order Switched Capacitor Filter 2nd−Order Continuous Time Post Filter Modulator Control AV DD AGND X IN X OUT V REF CS DV DD DGND C 1 C 2 SDIO V OUT SCLK DAC1220 www.ti.com...................................................................................................................................... SBAS082G – FEBRUARY 1998 – REVISED SEPTEMBER 2009 20-Bit, Low-Power Digital-to-Analog Converter Check for Samples: DAC1220 1 FEATURES DESCRIPTION 2 • 20-Bit Monotonicity Ensured Over –40°C to The DAC1220 is a 20-bit digital-to-analog (D/A) +85°C converter offering 20-bit monotonic performance over the specified temperature range. It utilizes • Low Power: 2.5mW delta-sigma technology to achieve inherently linear • Voltage Output performance in a small package at very low power. • Settling Time: 2ms to 0.012% The resolution of the device can be programmed to 20 bits for Full-Scale, settling to 0.003% within 15ms • Maximum Linearity Error: ±0.0015% typical, or 16 bits for Full-Scale, settling to 0.012% • On-Chip Calibration within 2ms max. The output range is two times the external reference voltage. On-chip calibration APPLICATIONS circuitry dramatically reduces low offset and gain • Process Control errors. • ATE Pin Electronics The DAC1220 features a synchronous serial • Closed-Loop Servo Control interface; in single-converter applications, the serial • Smart Transmitters interface can be accomplished with just two wires, allowing low-cost isolation. For multiple converters, a • Portable Instruments CS signal allows for selection of the appropriate D/A converter. The DAC1220 has been designed for closed-loop control applications in the industrial process control market and high-resolution applications in the test and measurement market. It is also ideal for remote applications, battery-powered instruments, and isolated systems. The DAC1220 is available in an SSOP-16 package. 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. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 1998–2009, 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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类似说明 - DAC1220EG4 |
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