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OPA863 Datasheet(PDF) 1 Page - Texas Instruments |
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OPA863 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 52 page  OPAx863 Low-Power, 110-MHz, Rail-to-Rail Input and Output Amplifier 1 Features • Wide-bandwidth – Unity-gain bandwidth: 110-MHz (AV= 1 V/V) – Gain-bandwidth product: 50-MHz • Low power – Quiescent current: 700-µA/ch (typical) – Power down mode: 1.5-µA (maximum, VS= 3 V) – Supply voltage: 2.7-V to 12.6-V • Input voltage noise: 5.9-nV/√Hz • Slew rate: 105-V/µs • Rail-to-rail input and output • HD2/HD3: –129 dBc/–138 dBc at 20 kHz (2-VPP) • Operating temperature range: –40°C to +125°C • Additional features: – Overload power limit – Output short-circuit protection • High-precision version: OPAx863A 2 Applications • Low-power SAR and ΔΣ ADC driver • ADC reference buffer • Low-side current sensing • Photodiode TIA interface • Inductive sensing • Ultrasonic flow meters • Multi-function printers • MDAC output buffer • Gain and active filter stages + ± RF VOUT VCC OPA x863 GND To ADC ±VBIAS VEE V OUT = ID.RF ID CF LED Driver LED Photo- Diode + ± + ± RG RG RF RSH VREF GND To MCU/ ADC To compar ato r for faul t detection Switchi ng Circuit ISH VOUT GND VCC OPA x863 Transimpedance Amplifier Circuit Low-side Current Sensing Application Circuits Using OPAx863 3 Description The OPAx863 devices are low-power, unity-gain stable, rail-to-rail input and output, voltage-feedback operational amplifiers designed to operate over a power supply range of 2.7-V to 12.6-V. Consuming only 700-µA per channel, the OPAx863 devices offer a gain-bandwidth product of 50-MHz, slew rate of 105-V/µs with a voltage noise density of 5.9-nV/√Hz. The rail-to-rail input stage with 2.7-V supply operation is useful in portable battery powered applications. The rail-to-rail input stage is well matched for gain-bandwidth product and noise across the full input common-mode voltage range, enabling superior performance with wide-input dynamic range. The OPA863 features a power-down (PD) mode with a PD quiescent current (IQ) of 1.5-µA (maximum) with turn-on or turn-off within 6.5-µs with a 3-V supply. The OPAx863 devices include overload power limiting to limit the increase in IQ with saturated outputs, thereby preventing excessive power dissipation in power conscious battery-operated systems. The output stage is short-circuit protected, making it conducive to ruggedized environments. Device Information(1)(2) PART NUMBER PACKAGE BODY SIZE (NOM) OPA863 SOT-23 (5) (DBV) 2.90 mm × 1.60 mm SOT-23 (6) (DBV) 2.90 mm × 1.60 mm OPA2863 VSSOP (8) (DGK) 3.00 mm × 3.00 mm WQFN (10) (RUN) 2.00 mm × 2.00 mm SOIC (8) (D) 4.90 mm × 3.91 mm OPA4863 TSSOP (14) (PW)(3) 5.00 mm × 4.40 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. (2) For related products, see Device Comparison (3) Preview packages. Frequency (Hz) -160 -140 -120 -100 -80 -60 -40 -20 1k 10k 100k 1M 10M HD2, VOUT = 2 VPP HD3, VOUT = 2 VPP HD2, VOUT = 4 VPP HD3, VOUT = 4 VPP Distortion Performance in G = 1 V/V OPA863, OPA2863, OPA4863 SBOS982I – JUNE 2020 – REVISED DECEMBER 2022 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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA. |
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