Datasheet ADA4895-1, ADA4895-2 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | Low Power, 1 nV/√Hz, G ≥ 10 Stable, Rail-to-Rail Output Amplifier |
| 页数 / 页 | 24 / 5 — Data Sheet. ADA4895-1/ADA4895-2. Parameter. Test Conditions/Comments. … |
| 修订版 | B |
| 文件格式/大小 | PDF / 599 Kb |
| 文件语言 | 英语 |
Data Sheet. ADA4895-1/ADA4895-2. Parameter. Test Conditions/Comments. Min. Typ. Max. Unit. ±1.5 V (OR +3 V) SUPPLY. Table 4. Parameter
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Data Sheet ADA4895-1/ADA4895-2 Parameter Test Conditions/Comments Min Typ Max Unit
POWER SUPPLY Operating Range 3 to 10 V Quiescent Current per Amplifier 2.6 2.8 3 mA DISABLEx = −2.5 V 0.05 mA Positive Power Supply Rejection +VS = 2 V to 3 V, −VS = −2.5 V −98 −137 dB Negative Power Supply Rejection +VS = 2.5 V, −VS = −3 V to −2 V −98 −141 dB DISABLEx PIN DISABLEx Voltage Device enabled >+VS − 0.5 V Device disabled <+VS − 2 V Input Current per Amplifier Device Enabled DISABLEx = +2.5 V −1.1 µA Device Disabled DISABLEx = −2.5 V −20 µA Switching Speed Device Enabled 0.25 µs Device Disabled 6 µs
±1.5 V (OR +3 V) SUPPLY
TA = 25°C, G = +10, RF = 249 Ω, RL = 1 kΩ to midsupply, unless otherwise noted.
Table 4. Parameter Test Conditions/Comments Min Typ Max Unit
DYNAMIC PERFORMANCE −3 dB Bandwidth VOUT = 0.2 V p-p 205 MHz VOUT = 1 V p-p 131 MHz VOUT = 0.2 V p-p, G = +20, RF = 1 kΩ 111 MHz Bandwidth for 0.1 dB Flatness VOUT = 2 V p-p, RL = 100 Ω 7.5 MHz Slew Rate VOUT = 1 V step 384 V/µs Settling Time to 0.1% VOUT = 2 V step 20 ns NOISE/HARMONIC PERFORMANCE Harmonic Distortion (SFDR) fC = 100 kHz, VOUT = 2 V p-p −92 dBc fC = 1 MHz, VOUT = 2 V p-p −73 dBc fC = 2 MHz, VOUT = 2 V p-p −67 dBc fC = 5 MHz, VOUT = 2 V p-p −59 dBc Input Voltage Noise f = 10 Hz, G = +25.9 1.9 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 +55 +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 = −1 V to +1 V 95 106 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 −1.4 to +0.6 V Common-Mode Rejection VCM = −0.4 V to +0.4 V −93 −110 dB Rev. B | Page 5 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
POWER SUPPLY Operating Range 3 to 10 V Quiescent Current per Amplifier 2.6 2.8 3 mA DISABLEx = −2.5 V 0.05 mA Positive Power Supply Rejection +VS = 2 V to 3 V, −VS = −2.5 V −98 −137 dB Negative Power Supply Rejection +VS = 2.5 V, −VS = −3 V to −2 V −98 −141 dB DISABLEx PIN DISABLEx Voltage Device enabled >+VS − 0.5 V Device disabled <+VS − 2 V Input Current per Amplifier Device Enabled DISABLEx = +2.5 V −1.1 µA Device Disabled DISABLEx = −2.5 V −20 µA Switching Speed Device Enabled 0.25 µs Device Disabled 6 µs
±1.5 V (OR +3 V) SUPPLY
TA = 25°C, G = +10, RF = 249 Ω, RL = 1 kΩ to midsupply, unless otherwise noted.
Table 4. Parameter Test Conditions/Comments Min Typ Max Unit
DYNAMIC PERFORMANCE −3 dB Bandwidth VOUT = 0.2 V p-p 205 MHz VOUT = 1 V p-p 131 MHz VOUT = 0.2 V p-p, G = +20, RF = 1 kΩ 111 MHz Bandwidth for 0.1 dB Flatness VOUT = 2 V p-p, RL = 100 Ω 7.5 MHz Slew Rate VOUT = 1 V step 384 V/µs Settling Time to 0.1% VOUT = 2 V step 20 ns NOISE/HARMONIC PERFORMANCE Harmonic Distortion (SFDR) fC = 100 kHz, VOUT = 2 V p-p −92 dBc fC = 1 MHz, VOUT = 2 V p-p −73 dBc fC = 2 MHz, VOUT = 2 V p-p −67 dBc fC = 5 MHz, VOUT = 2 V p-p −59 dBc Input Voltage Noise f = 10 Hz, G = +25.9 1.9 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 +55 +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 = −1 V to +1 V 95 106 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 −1.4 to +0.6 V Common-Mode Rejection VCM = −0.4 V to +0.4 V −93 −110 dB Rev. B | Page 5 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