AD8655ARZ Analog Devices Inc, AD8655ARZ Datasheet
AD8655ARZ
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AD8655ARZ Summary of contents
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FEATURES Low noise: 2.7 nV/√ kHz Low offset voltage: 250 μV max over V Offset voltage drift: 0.4 μV/°C typ and 2.3 μV/°C max Bandwidth: 28 MHz Rail-to-rail input/output Unity gain stable 2 5.5 ...
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AD8655/AD8656 TABLE OF CONTENTS Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 5 ESD Caution.................................................................................. 5 Typical Performance Characteristics ............................................. 6 Theory of Operation ...................................................................... 15 Applications..................................................................................... 16 Input Overvoltage Protection ................................................... 16 Input Capacitance....................................................................... 16 REVISION HISTORY 6/05—Rev Rev. A ...
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SPECIFICATIONS 25°C, unless otherwise specified Table 1. Parameter INPUT CHARACTERISTICS Offset Voltage Offset Voltage Drift Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection ...
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AD8655/AD8656 25°C, unless otherwise specified Table 2. Parameter INPUT CHARACTERISTICS Offset Voltage Offset Voltage Drift Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection ...
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ABSOLUTE MAXIMUM RATINGS Table 3. Parameter Rating Supply Voltage 6 V Input Voltage VSS − 0 VDD + 0.3 V Differential Input Voltage ±6 V Output Short-Circuit Duration Indefinite to GND Electrostatic Discharge (HBM) 3.0 kV Storage Temperature ...
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AD8655/AD8656 TYPICAL PERFORMANCE CHARACTERISTICS –150 –100 – (μV) OS Figure 5. Input Offset Voltage Distribution 150.0 100.0 50.0 0.0 –50.0 –100.0 –150.0 – TEMPERATURE (°C) Figure 6. Input ...
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V = ±2.5V S 4.0 3.5 3.0 2.5 2.0 – TEMPERATURE (°C) Figure 11. Supply Current vs. Temperature 2500 V = ±2.5V S 2000 1500 V OH 1000 V OL 500 100 150 CURRENT ...
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AD8655/AD8656 110.00 107.00 104.00 101.00 98.00 95.00 92.00 – TEMPERATURE (°C) Figure 17. Large Signal CMRR vs. Temperature 100 +PSRR 80 –PSRR 100 1k 10k 100k FREQUENCY (Hz) Figure 18. Small Signal PSSR vs. ...
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V = ±2. 11.5pF 100 LOAD PHASE MARGIN = 69° –20 –40 10k 100k 1M 10M FREQUENCY (Hz) Figure 23. Open-Loop Gain and Phase vs. Frequency 140. ±2.5V S ...
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AD8655/AD8656 ±2. 200mV – + 100 150 200 CAPACITANCE (pF) Figure 29. Small Signal Overshoot vs. Load Capacitance T 300mV ...
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V/ ° C) |TCV OS Figure 35. |TCV | Distribution OS 4 ±1.35V S 4.0 3.5 3.0 2.5 2.0 ...
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AD8655/AD8656 OUT 2 20 μ s/DIV Figure 41. No Phase Reversal V = ±1.35V 50pF L GAIN = +1 2 TIME (10μs/DIV) Figure 42. Large Signal Response T 2 TIME (1μs/DIV) Figure 43. ...
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FREQUENCY (Hz) Figure 47. CMRR vs. Frequency 102.00 98.00 94.00 90.00 86.00 – TEMPERATURE (°C) Figure 48. Large Signal CMRR vs. Temperature 100 +PSRR 80 –PSRR 60 ...
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AD8655/AD8656 3.0 2 1.35V 2. LOAD 1.5 1.0 0.5 0 10k 100k FREQUENCY (Hz) Figure 53. Maximum Output Swing vs. Frequency 1000 V = ±1.35V S 100 G = ...
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THEORY OF OPERATION The AD8655/AD8656 amplifiers are voltage feedback, rail-to- rail input and output precision CMOS amplifiers, which operate from 2 5 power supply voltage. These amplifiers use the Analog Devices DigiTrim technology to achieve a ...
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AD8655/AD8656 APPLICATIONS INPUT OVERVOLTAGE PROTECTION The internal protective circuitry of the AD8655/AD8656 allows voltages exceeding the supply to be applied at the input recommended, however, not to apply voltages that exceed the supplies by more than 0.3 V ...
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THD Readings vs. Common-Mode Voltage Total harmonic distortion of the AD8655/AD8656 is well below 0.0007% with a load of 1 kΩ. This distortion is a function of the circuit configuration, the voltage applied, and the layout, in addition to other ...
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AD8655/AD8656 LAYOUT, GROUNDING, AND BYPASSING CONSIDERATIONS POWER SUPPLY BYPASSING Power supply pins can act as inputs for noise, so care must be taken to apply a noise-free, stable dc voltage. The purpose of bypass capacitors is to create low impedances ...
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... Dimensions shown in millimeters and (inches) ORDERING GUIDE Temperature Model Range 1 AD8655ARZ −40°C to +125°C 1 AD8655ARZ-REEL −40°C to +125°C 1 AD8655ARZ-REEL7 −40°C to +125°C 1 AD8655ARMZ-REEL −40°C to +125°C 1 AD8655ARMZ-R2 −40°C to +125°C 1 AD8656ARZ −40°C to +125°C 1 AD8656ARZ-REEL − ...
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AD8655/AD8656 NOTES © 2005 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05304–0–6/05(A) Rev Page ...