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OPA145

Texas Instruments
Part Number OPA145
Manufacturer Texas Instruments
Description JFET Operational Amplifier
Published Apr 13, 2020
Detailed Description Product Folder Order Now Technical Documents Tools & Software Support & Community OPA145 SBOS427C – JUNE 2017 – REV...
Datasheet PDF File OPA145 PDF File

OPA145
OPA145

Overview
Product Folder Order Now Technical Documents Tools & Software Support & Community OPA145 SBOS427C – JUNE 2017 – REVISED JULY 2018 OPA145 High-Precision, Low-Noise, Rail-to-Rail Output, 5.
5-MHz JFET Operational Amplifier 1 Features •1 Best Bandwidth and Slew-Rate-to-Power Ratio: – Gain-Bandwidth Product: 5.
5 MHz – Slew Rate: 20 V/μs – Low Supply Current: 475 µA (Maximum) • High Precision: – Very Low Offset: 150 μV (Maximum) – Very Low Offset Drift: 1 μV/°C (Maximum) • Low Input Bias Current: 2 pA • Excellent Noise Performance: – Very Low Voltage Noise: 7 nV/√Hz – Very Low Current Noise: 0.
8 fA/√Hz • Input-Voltage Range Includes V– Supply • Single-Supply Operation: 4.
5 V to 36 V • Dual-Supply Operation: ±2.
25 V to ±18 V 2 Applications • Analog I/O Modules • Battery-Powered Instruments • Industrial Controls • Medical Instrumentation • Photodiode Amplifiers • Active Filters • Data Acquisition Systems • Automatic Test Systems 3 Description The OPA145 operational amplifier (op amp) is a lowpower JFET input amplifier that has excellent drift, low current noise, and pico-ampere input bias current, making this device a suitable choice for amplifying small signals from high-impedance sensors.
The railto-rail output swing interfaces to modern, singlesupply, precision analog-to-digital converters (ADCs) and digital-to-analog converters (DACs).
In addition, the input range that includes V– allows designers to simplify power management and take advantage of the single-supply, low-noise JFET architecture.
Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) SOIC (8) 4.
90 mm × 3.
91 mm OPA145 VSSOP (8) 3.
00 mm × 3.
00 mm SOT-23 (5) 2.
90 mm × 1.
60 mm (1) For all available packages, see the orderable addendum at the end of the data sheet.
OPA145 Excels in 16-bit, 100-kSPS Fully Differential Transimpedance Imaging Application R1 50 k C1 9 pF +10V ± OPA145 + ò ‡ 9REF GND Fast Silicon PIN Photodiode 5A 3.
8 pF 2.
5 mW/cm2 Photovoltaic Mode GND + OPA145 ± +1...


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