Datasheet ADA4895-1, ADA4895-2 (Analog Devices) - 4
Manufacturer | Analog Devices |
Description | Low Power, 1 nV/√Hz, G ≥ 10 Stable, Rail-to-Rail Output Amplifier |
Pages / Page | 24 / 4 — ADA4895-1/ADA4895-2. Data Sheet. Parameter. Test Conditions/Comments. … |
Revision | B |
File Format / Size | PDF / 599 Kb |
Document Language | English |
ADA4895-1/ADA4895-2. Data Sheet. Parameter. Test Conditions/Comments. Min. Typ. Max. Unit. ±2.5 V (OR +5 V) SUPPLY. Table 3. Parameter
Model Line for this Datasheet
Text Version of Document
ADA4895-1/ADA4895-2 Data Sheet Parameter Test Conditions/Comments Min Typ Max Unit
DISABLEx PIN DISABLEx Voltage Device enabled >+VS − 0.5 V Device disabled <+VS − 2 V Input Current per Amplifier Device Enabled DISABLEx = +5 V −1.1 µA Device Disabled DISABLEx = −5 V −40 µA Switching Speed Device Enabled 0.25 µs Device Disabled 6 µs
±2.5 V (OR +5 V) SUPPLY
TA = 25°C, G = +10, RF = 249 Ω, RL = 1 kΩ to midsupply, unless otherwise noted.
Table 3. Parameter Test Conditions/Comments Min Typ Max Unit
DYNAMIC PERFORMANCE −3 dB Bandwidth VOUT = 0.2 V p-p 216 MHz VOUT = 2 V p-p 131 MHz VOUT = 0.2 V p-p, G = +20, RF = 1 kΩ 113 MHz Bandwidth for 0.1 dB Flatness VOUT = 2 V p-p, RL = 100 Ω 7.9 MHz Slew Rate VOUT = 3 V step 706 V/µs Settling Time to 0.1% VOUT = 2 V step 21 ns NOISE/HARMONIC PERFORMANCE Harmonic Distortion (SFDR) fC = 100 kHz, VOUT = 2 V p-p −94 dBc fC = 1 MHz, VOUT = 2 V p-p −75 dBc fC = 2 MHz, VOUT = 2 V p-p −69 dBc fC = 5 MHz, VOUT = 2 V p-p −61 dBc Input Voltage Noise f = 10 Hz, G = +25.9 1.8 nV/√Hz f = 100 kHz, G = +25.9 1 nV/√Hz Input Current Noise f = 10 Hz, RF = 10 kΩ, RG = 1.1 kΩ, RS = 1 kΩ 14 pA/√Hz f = 100 kHz, RF = 10 kΩ, RG = 1.1 kΩ, RS = 1 kΩ 1.7 pA/√Hz 0.1 Hz to 10 Hz Noise G = +101, RF = 1 kΩ, RG = 10 Ω 99 nV p-p DC PERFORMANCE Input Offset Voltage −350 +53 +350 µV Input Offset Voltage Drift 0.15 µV/°C Input Bias Current −16 −11 −6 µA Input Bias Current Drift 1.2 nA/°C Input Bias Offset Current −0.6 −0.02 +0.6 µA Open-Loop Gain VOUT = −2 V to +2 V 97 108 dB INPUT CHARACTERISTICS Input Resistance Common mode/differential mode 10 M/10 k Ω Input Capacitance Common mode/differential mode 3/11 pF Input Common-Mode Voltage Range −2.4 to +1.6 V Common-Mode Rejection VCM = −1.5 V to +1.5 V −98 −110 dB OUTPUT CHARACTERISTICS Output Overdrive Recovery Time VIN = −0.275 V to +0.275 V 90 ns Positive Output Voltage Swing RL = 1 kΩ 2.35 2.48 V RL = 100 Ω 2.3 2.38 V Negative Output Voltage Swing RL = 1 kΩ −2.35 −2.48 V RL = 100 Ω −2.3 −2.38 V Linear Output Current SFDR = −45 dBc 64 mA rms Short-Circuit Current Sinking/sourcing 111/98 mA Capacitive Load Drive 30% overshoot 6 pF Rev. B | Page 4 of 24 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAMS COMPANION PRODUCTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ±5 V (OR +10 V) SUPPLY ±2.5 V (OR +5 V) SUPPLY ±1.5 V (OR +3 V) SUPPLY ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE MAXIMUM POWER DISSIPATION ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION AMPLIFIER DESCRIPTION INPUT PROTECTION DISABLE OPERATION DC ERRORS BIAS CURRENT CANCELLATION NOISE CONSIDERATIONS APPLICATIONS INFORMATION USING THE ADA4895-1/ADA4895-2 AT A GAIN < +10 HIGH GAIN BANDWIDTH APPLICATION FEEDBACK CAPACITOR APPLICATION WIDEBAND PHOTOMULTIPLIER PREAMPLIFIER LAYOUT CONSIDERATIONS Ground Plane Power Supply Bypassing OUTLINE DIMENSIONS ORDERING GUIDE