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THS4521 Datasheet(PDF) 1 Page - Texas Instruments |
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THS4521 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 54 page  −140 −130 −120 −110 −100 −90 −80 −70 −60 −50 −40 −30 −20 −10 0 0 5k 10k 15k 20k 24k Frequency (Hz) VS = 5 V G = 1 V/V VOUT = 1 VRMS RF = 2 kΩ RL = 600 Ω G071 THS4531 www.ti.com SLOS358B – SEPTEMBER 2011 – REVISED MARCH 2012 Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier Check for Samples: THS4531 1 FEATURES DESCRIPTION The THS4531 is a low-power, fully-differential op amp • Ultra Low Power: with input common-mode range below the negative – Voltage: 2.5 V to 5.5 V rail and rail-to-rail output. The device is designed for – Current: 250 µA low-power data acquisition systems and high density applications where power consumption and – Power-Down Mode: 0.5 µA (typ) dissipation is critical. • Fully-Differential Architecture The device features accurate output common-mode • Bandwidth: 36 MHz control that allows for dc coupling when driving • Slew Rate: 200 V/µs analog-to-digital converters (ADCs). This control, • THD: –120 dBc at 1 kHz (1 VRMS, RL= 2 kΩ) coupled with the input common-mode range below the negative rail and rail-to-rail output, allows for easy • Input Voltage Noise: 10 nV/ √Hz (f = 1 kHz) interface from single-ended ground-referenced signal • High DC Accuracy: sources to successive-approximation registers – VOS Drift: ±4 µV/˚C (–40°C to +125°C) (SARs), and delta-sigma ( ΔΣ) ADCs using only single-supply 2.5-V to 5-V power. The THS4531 is – AOL: 114 dB also a valuable tool for general-purpose, low-power • Rail-to-Rail Output (RRO) differential signal conditioning applications. • Negative Rail Input (NRI) The THS4531 is characterized for operation over the • Output Common-Mode Control extended industrial temperature range from –40°C to +125°C. The following package options are available: APPLICATIONS • 8-pin SOIC (MSOP) and VSSOP (D and DGK) • Low-Power SAR, ΔΣ ADC Driver • 10-pin WQFN (RUN) • Low Power, High Performance: – Differential to Differential Amplifier – Single-Ended to Differential Amplifier • Low-Power, Wide-Bandwidth Differential Driver • Low-Power, Wide-Bandwidth Differential Signal Conditioning • High Channel Count and Power Dense Systems Figure 1. 1-kHz FFT Plot on Audio Analyzer Table 1. Related Products THD (dBc) at 100 DEVICE BW (MHz) IQ (mA) VN (nV/√Hz) RAIL-TO-RAIL kHz THS4521 145 1.14 –120 4.6 Out THS4520 570 15.3 –114 2 Out THS4121 100 16 –79 5.4 In/Out THS4131 150 16 –107 1.3 No 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 © 2011–2012, 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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