Datasheet ADA4805-1, ADA4805-2 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | 0.2 µV/°C Offset Drift, 105 MHz Low Power, Low Noise, Rail-to-Rail Amplifier |
| 页数 / 页 | 25 / 5 — Data Sheet. ADA4805-1/ADA4805-2. Parameter. Test Conditions/Comments. … |
| 修订版 | B |
| 文件格式/大小 | PDF / 784 Kb |
| 文件语言 | 英语 |
Data Sheet. ADA4805-1/ADA4805-2. Parameter. Test Conditions/Comments. Min. Typ. Max. Unit. 3 V SUPPLY. Table 4. Parameter. Min Typ. Max Unit
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Data Sheet ADA4805-1/ADA4805-2 Parameter Test Conditions/Comments Min Typ Max Unit
SHUTDOWN PIN SHUTDOWN Voltage Low Powered down <1.5 V High Enabled >1.9 V SHUTDOWN Current Low Powered down −1.0 0.1 µA High Enabled 0.01 1.0 µA Turn-Off Time 50% of SHUTDOWN to <10% of enabled 0.9 1.25 µs quiescent current Turn-On Time 50% of SHUTDOWN to >90% of final VOUT 3 4 µs OUTPUT CHARACTERISTICS Overdrive Recovery Time (Rising/Falling VIN = −1 V to +6 V, G = +2 130/145 ns Edge) Output Voltage Swing RL = 2 kΩ 0.02 4.98 V Short-Circuit Current Sinking/sourcing 73/63 mA Linear Output Current <1% THD at 100 kHz, VOUT = 2 V p-p ±47 mA Off Isolation VIN = 0.5 V p-p, f = 1 MHz, SHUTDOWN = −VS 41 dB Capacitive Load Drive 30% overshoot 15 pF POWER SUPPLY Operating Range 2.7 10 V Quiescent Current per Amplifier Enabled 500 520 µA SHUTDOWN = −VS 2.9 4 µA Power Supply Rejection Ratio Positive +VS = 1.5 V to 3.5 V, −VS = −2.5 V 100 120 dB Negative +VS = 2.5 V, −VS = −1.5 V to −3.5 V 100 126 dB 1 fC is the fundamental frequency. 2 Guaranteed, but not tested.
3 V SUPPLY
VS = 3 V at TA = 25°C; RF = 0 Ω for G = +1; otherwise, RF = 1 kΩ; RL = 2 kΩ to midsupply; unless otherwise noted. All specifications are per amplifier.
Table 4. Parameter Test Conditions/Comments Min Typ Max Unit
DYNAMIC PERFORMANCE −3 dB Bandwidth G = +1, VOUT = 0.02 V p-p 95 MHz G = +1, VOUT = 1 V p-p, +VS = 2 V, −VS = −1 V 30 MHz Bandwidth for 0.1 dB Flatness G = +1, VOUT = 0.02 V p-p 35 MHz Slew Rate G = +1, VOUT = 1 V step, +VS = 2 V, −VS = −1 V 85 V/µs Settling Time to 0.1% G = +1, VOUT = 1 V step 41 ns NOISE/DISTORTION PERFORMANCE Harmonic Distortion, HD2/HD31 fC = 20 kHz, VOUT = 1 V p-p, +VS = 2 V, −VS = −1 V −123/−143 dBc fC = 100 kHz, VOUT = 1 V p-p, +VS = 2 V, −VS = −1 V −107/−133 dBc Input Voltage Noise f = 100 kHz 6.3 nV/√Hz Input Voltage Noise 1/f Corner 8 Hz 0.1 Hz to 10 Hz Voltage Noise 55 nV rms Input Current Noise f = 100 kHz 0.8 pA/√Hz Rev. B | Page 5 of 25 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TYPICAL APPLICATIONS CIRCUIT TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ±5 V SUPPLY 5 V SUPPLY 3 V SUPPLY ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE MAXIMUM POWER DISSIPATION ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUITS THEORY OF OPERATION AMPLIFIER DESCRIPTION INPUT PROTECTION SHUTDOWN OPERATION NOISE CONSIDERATIONS APPLICATIONS INFORMATION SLEW ENHANCEMENT EFFECT OF FEEDBACK RESISTOR ON FREQUENCY RESPONSE COMPENSATING PEAKING IN LARGE SIGNAL FREQUENCY RESPONSE DRIVING LOW POWER, HIGH RESOLUTION SUCCESSIVE APPROXIMATION REGISTER (SAR) ADCs DYNAMIC POWER SCALING SINGLE-ENDED TO DIFFERENTIAL CONVERSION LAYOUT CONSIDERATIONS Ground Plane Power Supply Bypassing OUTLINE DIMENSIONS ORDERING GUIDE
Data Sheet ADA4805-1/ADA4805-2 Parameter Test Conditions/Comments Min Typ Max Unit
SHUTDOWN PIN SHUTDOWN Voltage Low Powered down <1.5 V High Enabled >1.9 V SHUTDOWN Current Low Powered down −1.0 0.1 µA High Enabled 0.01 1.0 µA Turn-Off Time 50% of SHUTDOWN to <10% of enabled 0.9 1.25 µs quiescent current Turn-On Time 50% of SHUTDOWN to >90% of final VOUT 3 4 µs OUTPUT CHARACTERISTICS Overdrive Recovery Time (Rising/Falling VIN = −1 V to +6 V, G = +2 130/145 ns Edge) Output Voltage Swing RL = 2 kΩ 0.02 4.98 V Short-Circuit Current Sinking/sourcing 73/63 mA Linear Output Current <1% THD at 100 kHz, VOUT = 2 V p-p ±47 mA Off Isolation VIN = 0.5 V p-p, f = 1 MHz, SHUTDOWN = −VS 41 dB Capacitive Load Drive 30% overshoot 15 pF POWER SUPPLY Operating Range 2.7 10 V Quiescent Current per Amplifier Enabled 500 520 µA SHUTDOWN = −VS 2.9 4 µA Power Supply Rejection Ratio Positive +VS = 1.5 V to 3.5 V, −VS = −2.5 V 100 120 dB Negative +VS = 2.5 V, −VS = −1.5 V to −3.5 V 100 126 dB 1 fC is the fundamental frequency. 2 Guaranteed, but not tested.
3 V SUPPLY
VS = 3 V at TA = 25°C; RF = 0 Ω for G = +1; otherwise, RF = 1 kΩ; RL = 2 kΩ to midsupply; unless otherwise noted. All specifications are per amplifier.
Table 4. Parameter Test Conditions/Comments Min Typ Max Unit
DYNAMIC PERFORMANCE −3 dB Bandwidth G = +1, VOUT = 0.02 V p-p 95 MHz G = +1, VOUT = 1 V p-p, +VS = 2 V, −VS = −1 V 30 MHz Bandwidth for 0.1 dB Flatness G = +1, VOUT = 0.02 V p-p 35 MHz Slew Rate G = +1, VOUT = 1 V step, +VS = 2 V, −VS = −1 V 85 V/µs Settling Time to 0.1% G = +1, VOUT = 1 V step 41 ns NOISE/DISTORTION PERFORMANCE Harmonic Distortion, HD2/HD31 fC = 20 kHz, VOUT = 1 V p-p, +VS = 2 V, −VS = −1 V −123/−143 dBc fC = 100 kHz, VOUT = 1 V p-p, +VS = 2 V, −VS = −1 V −107/−133 dBc Input Voltage Noise f = 100 kHz 6.3 nV/√Hz Input Voltage Noise 1/f Corner 8 Hz 0.1 Hz to 10 Hz Voltage Noise 55 nV rms Input Current Noise f = 100 kHz 0.8 pA/√Hz Rev. B | Page 5 of 25 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TYPICAL APPLICATIONS CIRCUIT TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ±5 V SUPPLY 5 V SUPPLY 3 V SUPPLY ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE MAXIMUM POWER DISSIPATION ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUITS THEORY OF OPERATION AMPLIFIER DESCRIPTION INPUT PROTECTION SHUTDOWN OPERATION NOISE CONSIDERATIONS APPLICATIONS INFORMATION SLEW ENHANCEMENT EFFECT OF FEEDBACK RESISTOR ON FREQUENCY RESPONSE COMPENSATING PEAKING IN LARGE SIGNAL FREQUENCY RESPONSE DRIVING LOW POWER, HIGH RESOLUTION SUCCESSIVE APPROXIMATION REGISTER (SAR) ADCs DYNAMIC POWER SCALING SINGLE-ENDED TO DIFFERENTIAL CONVERSION LAYOUT CONSIDERATIONS Ground Plane Power Supply Bypassing OUTLINE DIMENSIONS ORDERING GUIDE