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OPA376AIDCKRG4 Datasheet(PDF) 10 Page - Texas Instruments |
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OPA376AIDCKRG4 Datasheet(HTML) 10 Page - Texas Instruments |
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10 / 30 page  -0.5 3 2 1 0 -1 -2 -3 InputCommon-ModeVoltage(V) 6.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 +V -V C 1 100nF R 2 10kW R 1 1kW +5V V OUT V IN V =2.5V CM OPA376 OPA376 OPA2376 OPA4376 SBOS406F – JUNE 2007 – REVISED MARCH 2013 www.ti.com APPLICATION INFORMATION The OPA376 family of operational amplifiers is built using e-trim, a proprietary technique in which offset voltage is adjusted during the final steps of manufacturing. This technique compensates for performance shifts that can occur during the molding process. Through e-trim, the OPA376 family delivers excellent offset voltage (5 μV, typ). Additionally, the amplifier boasts a fast slew rate, low drift, low noise, and excellent PSRR and AOL. These 5.5MHz CMOS op amps operate on 760 μA (typ) quiescent current. OPERATING CHARACTERISTICS The OPA376 family of amplifiers has parameters that are fully specified from 2.2V to 5.5V (±1.1V to ±2.75V). Many of the specifications apply from –40°C to +125°C. Parameters that can exhibit significant variance with regard to operating voltage or temperature are presented in the Typical Characteristics. GENERAL LAYOUT GUIDELINES Figure 22. Basic Single-Supply Connection For best operational performance of the device, good printed circuit board (PCB) layout practices are required. Low-loss, 0.1 μF bypass capacitors must be connected between each supply pin and ground, COMMON-MODE VOLTAGE RANGE placed as close to the device as possible. A single The input common-mode voltage range of the bypass capacitor from V+ to ground is applicable to OPA376 series extends 100mV beyond the supply single-supply applications. rails. The offset voltage of the amplifier is very low, from approximately (V–) to (V+) – 1V, as shown in BASIC AMPLIFIER CONFIGURATIONS Figure 23. The offset voltage increases as common- mode voltage exceeds (V+) –1V. Common-mode The OPA376 family is unity-gain stable. It does not rejection is specified from (V–) to (V+) – 1.3V. exhibit output phase inversion when the input is overdriven. A typical single-supply connection is shown in Figure 22. The OPA376 is configured as a basic inverting amplifier with a gain of –10V/V. This single-supply connection has an output centered on the common-mode voltage, VCM. For the circuit shown, this voltage is 2.5V, but may be any value within the common-mode input voltage range. Figure 23. Offset and Common-Mode Voltage 10 Submit Documentation Feedback Copyright © 2007–2013, Texas Instruments Incorporated Product Folder Links: OPA376 OPA2376 OPA4376 |
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