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THS4541 Datasheet(PDF) 1 Page - Texas Instruments |
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THS4541 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 62 page C2 100 nF Rf1 402 Rload 500 Rg1 191 C1 100 nF Rg2 221 Rt 60.2 Output Measurement Point THS4541 Wideband, Fully-Differential Amplifier 50- Input Match Gain of 2 V/V from Rt Single-Ended Source to Differential Output Vocm Rf2 402 50- Source + ± Vcc + ± Vocm Vcc FDA PD Frequency (MHz) 0.1 1 10 50 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 D013 HD2 HD3 Product Folder Sample & Buy Technical Documents Tools & Software Support & Community THS4541 SLOS375 – AUGUST 2014 THS4541 Negative Rail Input, Rail-to-Rail Output, Precision, 850-MHz Fully Differential Amplifier 1 Features 3 Description The THS4541 is a low-power, voltage-feedback, fully 1 • Fully Differential Amplifier (FDA) Architecture differential amplifier (FDA) with an input common- • Bandwidth: 500 MHz (G = 2 V/V) mode range below the negative rail, and rail-to-rail • Gain Bandwidth Product: 850 MHz output. Designed for low-power data acquisition systems where high density is critical in a high- • Slew Rate: 1500 V/µs performance analog-to-digital converter (ADC) or • HD2: –95 dBc at 10 MHz (2 VPP, RL = 500 Ω) digital-to-analog converter (DAC) interface design. • HD3: –90 dBc at 10 MHz (2 VPP, RL = 500 Ω) The THS4541 features the negative-rail input • Input Voltage Noise: 2.2 nV/Hz (f > 100 kHz) required when interfacing a dc-coupled, ground- • Low offset drift: ±0.5 µV/°C (typ) centered, source signal. This negative-rail input, with rail-to-rail output, allows for easy interface between • Negative Rail Input (NRI) single-ended, ground-referenced, bipolar signal • Rail-to-Rail Output (RRO) sources and a wide variety of SAR, ΔΣ, or pipeline • Robust Operation for Rload ≥ 50 Ω ADCs using only a single +2.7-V to +5.4-V power • Output Common-Mode Control supply. • Power Supply: The THS4541 is characterized for operation over the – Single-Supply Voltage Range: 2.7 V to 5.4 V wide temperature range of –40°C to 125°C available in 16-pin VQFN and 10-pin WQFN packages. – Split-Supply Voltage Range: ±1.35 V to ±2.7 V – Quiescent Current: 10.1 mA (5-V Supply) Device Information(1) • Power-Down Capability: 2 µA (typ) PART NUMBER PACKAGE BODY SIZE (NOM) VQFN (16) 3.00 mm × 3.00 mm THS4541 2 Applications WQFN (10) 2.00 mm × 2.00 mm • Low-Power, High-Performance ADC Driver (1) For all available packages, see the package option addendum at the end of the datasheet. – SAR, ΔΣ, and Pipeline • Low Power, High Performance (DC or AC Coupled) – Single-Ended to Differential Amplifier – Differential to Differential Amplifier • Differential Active Filters • Differential Transimpedance for DAC Outputs • DC- or AC-Coupled Interface to the ADC3xxx Family of Low-Power, High-Performance ADCs • Pin-Compatible Upgrade to ADA4932-1 (RGT) Simplified Schematic Single to Differential Gain of 2, 2-VPP Output 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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