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THS4521-HT Datasheet(PDF) 1 Page - Texas Instruments |
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THS4521-HT Datasheet(HTML) 1 Page - Texas Instruments |
1 / 28 page THS4521-HT www.ti.com SBOS548D – APRIL 2011 – REVISED MAY 2012 VERY LOW POWER, NEGATIVE RAIL INPUT, RAIL-TO-RAIL OUTPUT, FULLY DIFFERENTIAL AMPLIFIER Check for Samples: THS4521-HT 1 FEATURES • Fully Differential Architecture APPLICATIONS • Bandwidth: 40.7 MHz (210°C) • Down-Hole Drilling • Slew Rate: 353.5 V/ μs (210°C) • High Temperature Environments • HD2: –96 dBc at 1 kHz SUPPORTS EXTREME TEMPERATURE (1 VRMS, RL = 1 kΩ) (210°C) APPLICATIONS • HD3: –91.5 dBc at 1 kHz (1 VRMS, RL = 1 kΩ) (210°C) • Controlled Baseline • Input Voltage Noise: 19.95 nV/ √Hz (f = 100 kHz) • One Assembly/Test Site • Open-Loop Gain: 90 dB (typ) (210°C) • One Fabrication Site • NRI—Negative Rail Input • Available in Extreme (–55°C/210°C) Temperature Range(1) • RRO—Rail-to-Rail Output • Extended Product Life Cycle • Output Common-Mode Control (with Low Offset and Drift) • Extended Product-Change Notification • Power Supply: • Product Traceability – Voltage: 2.5 V (±1.25 V) to 3.3 V (±1.65 V) • Texas Instruments high temperature products utilize highly optimized silicon (die) solutions – Current: 1.4 mA/ch (3.3 V) with design and process enhancements to • Power-Down Capability: 10 µA (typ) (210°C) maximize performance over extended temperatures. (1) Custom temperature ranges available DESCRIPTION The THS4521 is a very low-power, fully differential op amp with rail-to-rail output and an input common-mode range that includes the negative rail. This amplifier is designed for low-power data acquisition systems and high- density applications where power dissipation is a critical parameter, and provides exceptional performance in audio applications. The THS4521 features accurate output common-mode control that allows for 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, this device is ideally suited for driving both successive-approximation register (SAR) and delta- sigma ( ΔΣ) ADCs using only a single 2.5-V to 3.3-V and ground power supply. The THS4521 is characterized for operation from –55°C to 210°C. 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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