AD820 Analog Devices, AD820 Datasheet
AD820
Specifications of AD820
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AD820 Summary of contents
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... GΩ. 1.8 MHz unity gain bandwidth, −93 dB THD at 10 kHz, and 3 V/μs slew rate are provided for a low supply current of 800 μA. The AD820 drives up to 350 pF of direct capacitive load and provides a minimum output current of 15 mA. This allows the amplifier to handle a wide range of load conditions ...
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... Updated Format..................................................................Universal Updated Outline Dimensions ....................................................... 21 Changes to the Ordering Guide.................................................... 22 5/02—Rev Rev. D Change to SOIC Package (R-8) Drawing .................................... 15 Edits to Features................................................................................ 1 Edits to Product Description .......................................................... 1 Delete Specifications for AD820A-3 V .......................................... 5 Edits to Ordering Guide .................................................................. 6 Edits to Typical Performance Characteristics............................... 8 Input Characteristics.................................................................. 16 Output Characteristics............................................................... 17 Offset Voltage Adjustment ............................................................ 18 Applications..................................................................................... 19 Single Supply Half-Wave and Full-Wave Rectifiers ...
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... AD820 Max Unit 0.4 mV 0.9 mV μV/° 2 V/mV V/mV V/mV V/mV V/mV V/mV μV p-p nV/√Hz nV/√Hz nV/√Hz nV/√Hz fA p-p fA/√Hz dB MHz kHz V/μs μs μ ...
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... SOURCE 300 SINK 800 SOURCE 350 620 MIN MAX and the minus voltage supply rail ( and the positive supply voltage ( Rev Page AD820B Max Min Typ Max 110 80 110 160 160 500 300 500 1000 1000 1500 800 1500 1900 1900 ...
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... AD820 Max Unit 0 μV/° 2 V/mV V/mV V/mV V/mV V/mV V/mV μV p-p nV/√Hz nV/√Hz nV/√Hz nV/√Hz fA p-p fA/√Hz dB MHz kHz V/μs μs μ ...
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... SOURCE 300 SINK 800 SOURCE 350 650 MIN MAX and the minus voltage supply rail ( and the positive supply voltage ( Rev Page AD820B Max Min Typ Max 110 80 110 160 160 500 300 500 1000 1000 1500 800 1500 1900 1900 ...
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... AD820 Unit mV mV μV/° V/mV V/mV V/mV V/mV V/mV V/mV μV p-p nV/√Hz nV/√Hz nV/√Hz nV/√Hz fA p-p fA/√Hz dB MHz kHz V/μs μs μ Ω||pF Ω||pF ...
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... SOURCE 300 SINK 800 SOURCE 350 700 MIN MAX and the minus voltage supply rail ( and the positive supply voltage ( Rev Page AD820B Max Min Typ Max 110 80 110 160 160 500 300 500 1000 1000 1500 800 1500 1900 1900 ...
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... This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect + 0 −( device reliability. ESD CAUTION Rev Page AD820 ...
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... AD820 TYPICAL PERFORMANCE CHARACTERISTICS –0.5 –0.4 –0.3 –0.2 –0.1 0 0.1 OFFSET VOLTAGE (mV) Figure 4. Typical Distribution of Offset Voltage (248 Units –10 –8 –6 –4 – OFFSET VOLTAGE DRIFT (µV/ºC) Figure 5. Typical Distribution of Offset Voltage Drift (120 Units INPUT BIAS CURRENT (pA) Figure 6 ...
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... NEGATIVE RAIL 60 120 180 240 OUTPUT VOLTAGE FROM RAILS (mV) Supply Rail for Various Resistive Loads ± 100 1k FREQUENCY (Hz) Figure 14. Input Voltage Noise vs. Frequency R = 10kΩ – ±15V 20V p-p S OUT V = ±5V p-p S OUT V = 0V, +5V 4.5V p-p S OUT 1k 10k FREQUENCY (Hz) AD820 100k ...
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... AD820 100 80 60 GAIN 2kΩ 100pF L –20 10 100 1k 10k 100k FREQUENCY (Hz) Figure 16. Open-Loop Gain and Phase Margin vs. Frequency ±15V S 100 10 1 0.1 0.01 100 1k 10k 100k FREQUENCY (Hz) Figure 17. Output Impedance vs. Frequency 0.1% 0.01% 0 –4 –8 1% –12 – SETTLING TIME (µs) Figure 18. Output Swing and Error vs. Settling Time ...
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... V = ±15V S –OUT V = ±15V S + – 100 120 140 Rev Page 120 110 100 +PSRR 60 –PSRR 100 1k 10k 100k FREQUENCY (Hz) Figure 25. Power Supply Rejection vs. Frequency 2kΩ ±15V 0V, + 10k 100k 1M FREQUENCY (Hz) Figure 26. Large Signal Frequency Response AD820 1M 10M 10M ...
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... AD820 +V S 0.01µ – AD820 – 3 0.01µ –V S Figure 27. Unity-Gain Follower, Used for Figure 28 Through Figure 32 5V 100 Figure 28 kHz Sine Input; Unity-Gain Follower 100 GND Figure 29 Unity-Gain Follower Response Step S 100 100pF OUT – Figure 30. Large Signal Response Unity-Gain Follower; V 10µ ...
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... Figure 36. V 100 GND Figure 37. V Rev Page 10kΩ 20kΩ 0.01µ – 6 AD820 3 100pF 2µ Gain of Two Inverter Response to 2.5 V Step, S Centered −1.25 V Below Ground 10mV 2µ Gain of Two Inverter Response Step, S Centered 20 mV Below Ground AD820 + OUT – ...
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... V, the input current reverses direction as internal device junctions become forward biased. This is illustrated in Figure 7. A current-limiting resistor should be used in series with the input of the AD820 if there is a possibility of the input voltage exceeding the positive supply by more than 300 mV input voltage is applied to the AD820 when ±V amplifier will be damaged if left in that condition for more than 10 seconds kΩ ...
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... Configurations with less loop gain, and as a result less loop bandwidth, are much less sensitive to capacitance load effects. Figure plot of noise gain vs. the capacitive load that results degree phase margin for the AD820. Noise gain is the inverse of the feedback attenuation factor provided by the feedback network in use. ...
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... AD820 OFFSET VOLTAGE ADJUSTMENT The offset voltage of the AD820 is low, so external offset voltage nulling is not usually required. Figure 43 shows the recom- mended technique for AD820 packaged in plastic DIP. Adjusting offset voltage in this manner changes the offset voltage temperature drift by 4 μV/°C for every millivolt of induced offset. The null pins are not functional for AD820s in the 8-lead SOIC package ...
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... Figure 45 shows a 4.5 V reference using the AD820 and the AD680, a low power 2.5 V band gap reference. R2 and R3 set up the required gain of 1.8 to develop the 4.5 V output. R1 and C2 form a low- pass RC filter to reduce the noise contribution of the AD680 ...
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... AD820 LOW POWER 3-POLE SALLEN KEY LOW-PASS FILTER The high input impedance of the AD820 makes it a good selection for active filters. High value resistors can be used to construct low frequency filters with capacitors much less than 1 μF. The AD820 picoamp level input currents contribute minimal dc errors ...
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... Narrow Body (R-8) Dimensions shown in millimeters and (inches) Rev Page 0.325 (8.26) 0.310 (7.87) 0.300 (7.62) 0.195 (4.95) 0.130 (3.30) 0.115 (2.92) 0.014 (0.36) 0.010 (0.25) 0.008 (0.20) 0.430 (10.92) MAX 0.50 (0.0196) 45° 0.25 (0.0099) 1.27 (0.0500) 0.40 (0.0157) AD820 ...
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... AD820ARZ −40°C to +85°C 1 AD820ARZ-REEL −40°C to +85°C 1 AD820ARZ-REEL7 −40°C to +85°C AD820BR −40°C to +85°C AD820BR-REEL −40°C to +85°C AD820BR-REEL7 −40°C to +85°C 1 AD820BRZ −40°C to +85°C 1 AD820BRZ-REEL −40°C to +85°C 1 AD820BRZ-REEL7 − ...
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... NOTES Rev Page AD820 ...
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... AD820 NOTES ©1996–2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C00873-0-2/07(E) Rev Page ...