8 MHz Low Power CMOS, EMI Hardened Operational Amplifiers Evaluation Board
LMV851 Product Folder National's LMV851EVAL board is a CMOS input, low power op amp IC, providing a low input bias current, a wide temperature range of -40°C to +125°C and exceptional performance, making this IC a robust general purpose part.
To demonstrate the EMI robustness of the LMV851/LMV852/LMV854 and to be able to measure the parameter EMIRR, three evaluation boards have been developed; one for each device. This document describes the evaluation boards and explains how to perform EMIRR measurements. Focus is on one of the input pins as those are most sensitive to EMI. Based on symmetry considerations, it can be expected that both inputs have the same EMIRR. For reasons of simplicity of the required schematic the measurement on the IN+ pin is selected. A detailed description on EMI and EMIRR for the other pins can be found in Application Note AN-1698.
Features:
Unless otherwise noted, typical values at TA= 25°C, VSUPPLY = 3.3V
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Supply voltage
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.7V to 5.5V
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Supply current (per channel)
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.4 mA
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Input offset voltage
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1 mV max
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Input bias current
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0.1 pA
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GBW
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8 MHz
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EMIRR at 1.8 GHz
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87 dB
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Input noise voltage at 1 kHz
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11 nV/ √Hz
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Slew rate
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4.5 V/µs
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Output voltage swing
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Rail-to-Rail
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Output current drive
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30 mA
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Operating ambient temperature range
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−40°C to 125°C
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Applications:
- Photodiode preamp
- Piezoelectric sensors
- Portable/battery-powered electronic equipment
- Filters/buffers
- PDAs/phone accessories
- Medical diagnosis equipment
Package Includes:
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