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THS4522IPW Datasheet(PDF) 1 Page - Texas Instruments |
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THS4522IPW Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 48 page  THS4522 THS4521 THS4524 THS4521 ADS1278 (CH1) 49.9 W 1kW 49.9 W V OCM V IN+ V IN- 5V V COM 1kW 1kW 2.2nF AINN1 AINP1 0.1 F m 0.1 F m x1 1/2 OPA2350 1.5nF 1.5nF 1kW 0 20 40 60 80 100 120 140 160 - - - - - - - - 0 4 8 12 16 20 24 26 Frequency(kHz) 1-kHzFFT G=1 R =R =1k C =1.5nF V =5V Load=2x49.9 +2.2nF F G F S W W THS4521andADS1278CombinedPerformance Tone (Hz) 1k Signal (dBFS) 0.50 - SNR(dBc) 109.1 THD(dBc) 107.9 - SINAD (dBc) 105.5 SFDR (dBc) 113.7 THS4521 THS4522 THS4524 www.ti.com SBOS458D – DECEMBER 2008 – REVISED AUGUST 2010 VERY LOW POWER, NEGATIVE RAIL INPUT, RAIL-TO-RAIL OUTPUT, FULLY DIFFERENTIAL AMPLIFIER Check for Samples: THS4521, THS4522, THS4524 1 FEATURES APPLICATIONS • Low-Power SAR and ΔΣ ADC Drivers 23 • Fully Differential Architecture • Low-Power Differential Driver • Bandwidth: 145 MHz • Low-Power Differential Signal Conditioning • Slew Rate: 490 V/ms • Low-Power, High-Performance Differential • HD2: –133 dBc at 10 kHz (1 VRMS, RL = 1 kΩ) Audio Amplifier • HD3: –140 dBc at 10 kHz (1 VRMS, RL = 1 kΩ) • Input Voltage Noise: 4.6 nV/ √Hz (f = 100 kHz) DESCRIPTION • THD+N: –112dBc (0.00025%) at 1 kHz (22-kHz The THS4521, THS4522, and THS4524 family of BW, G = 1, 5 VPP) devices are very low-power, fully differential op amps • Open-Loop Gain: 119 dB with rail-to-rail output and an input common-mode range that includes the negative rail. These amplifiers • NRI—Negative Rail Input are designed for low-power data acquisition systems • RRO—Rail-to-Rail Output and high-density applications where power • Output Common-Mode Control (with Low dissipation is a critical parameter, and provide Offset and Drift) exceptional performance in audio applications. • Power Supply: The family includes single (THS4521), dual (THS4522), and quad (THS4524) versions. – Voltage: +2.5 V (±1.25 V) to +5.5 V (±2.75 V) – Current: 1.14 mA/ch These fully differential op amps feature accurate output common-mode control that allows for • Power-Down Capability: 20 mA (typ) dc-coupling when driving analog-to-digital converters (ADCs). This control, coupled with an input common-mode range below the negative rail as well as rail-to-rail output, allows for easy interfacing between single-ended, ground-referenced signal sources. Additionally, these devices are ideally suited for driving both successive-approximation register (SAR) and delta-sigma ( ΔΣ) ADCs using only a single +2.5V to +5V and ground power supply. The THS4521, THS4522, and THS4524 family of fully differential op amps is characterized for operation over the full industrial temperature range from –40°C to +85°C. RELATED PRODUCTS THD (dBc) BW at 100 VN RAIL- DEVICE (MHz) IQ (mA) kHz (nV/ √Hz) TO-RAIL THS4520 570 15.3 –114 2 Out THS4121 100 16 –79 5.4 In/Out THS4130 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. 2 I2S is a trademark of NXP Semiconductor. 3 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2008–2010, 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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