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Details, datasheet, quote on part number:AD820AR-3V
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Datasheet text preview:
a
FEATURES TRUE SINGLE SUPPLY OPERATION Output Swings Rail to Rail Input Voltage Range Extends Below Ground Single Supply Capability from +3 V to +36 V Dual Supply Capability from 1.5 V to 18 V EXCELLENT LOAD DRIVE Capacitive Load Drive Up to 350 pF Minimum Output Current of 15 mA EXCELLENT AC PERFORMANCE FOR LOW POWER 800 A Max Quiescent Current Unity Gain Bandwidth: 1.8 MHz Slew Rate of 3.0 V/ s EXCELLENT DC PERFORMANCE 800 V Max Input Offset Voltage 1 V/ C Typ Offset Voltage Drift 25 pA Max Input Bias Current LOW NOISE 13 nV/Hz @ 10 kHz APPLICATIONS Battery Powered Precision Instrumentation Photodiode Preamps Active Filters 12- to 14-Bit Data Acquisition Systems Medical Instrumentation Low Power References and Regulators
NULL IN +IN VS
Single Supply, Rail to Rail Low Power FET-Input Op Amp AD820
CONNECTION DIAGRAMS 8-Pin Plastic Mini-DIP 8-Pin SOIC
AD820
1 2 3 4
AD820
8 7
NC +V S
NC IN +IN
1 2 3
8 7
NC +VS
6 VOUT TOP VIEW (Not to Scale) 5 NULL
6 VOUT TOP VIEW (Not to Scale) 5 NC
V S 4
ground in the single supply mode. Output voltage swing extends to within 10 mV of each rail providing the maximum output dynamic range. Offset voltage of 800 µV max, offset voltage drift of 1 µV/°C, typ input bias currents below 25 pA and low input voltage noise provide dc precision with source impedances up to a Gigaohm. 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. This combination of ac and dc performance, plus the outstanding load drive capability, results in an exceptionally versatile amplifier for the single supply user. The AD820 is available in three performance grades. The A and B grades are rated over the industrial temperature range of 40°C to +85°C. There is 3 volt grade--the AD820A-3V, rated over the industrial temperature range. The AD820 is offered in two varieties of 8-pin package: plastic DIP, and surface mount (SOIC).
PRODUCT DESCRIPTION
The AD820 is a precision, low power FET input op amp that can operate from a single supply of +3.0 V to 36 V, or dual supplies of ± 1.5 V to ± 18 V. It has true single supply capability with an input voltage range extending below the negative rail, allowing the AD820 to accommodate input signals below
50 45
1V
1V
20µs
40
100
NUMBER OF UNITS
35 30 25 20 15
90
10
10 5 0 0 1 2 3 4 5 6 7 INPUT BIAS CURRENT pA 8 9 10
0%
1V
Input Voltage Noise vs. Frequency
Gain of +2 Amplifier; VS = +5, 0, VIN = 2.5 V Sine Centered at 1.25 Volts
REV. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703
AD820SPECIFICATIONS (V = O, 5 volts (@ T = +25 C, V
S A
CM
= 0 V, VOUT = 0.2 V unless otherwise noted)
Min AD820B Typ Max 0.1 0.5 2 2 0.5 2 0.5 500 400 80 80 15 10 1000 150 30 0.4 0.9 10 2.5 10 Units mV mV µV/°C pA nA pA nA V/mV V/mV V/mV V/mV V/mV V/mV
Parameter DC PERFORMANCE Initial Offset Max Offset over Temperature Offset Drift Input Bias Current a t TM A X Input Offset Current a t TM A X Open-Loop Gain TMIN to TMAX
Conditions
Min
AD820A Typ Max 0.1 0.5 2 2 0.5 2 0.5 0.8 1.2 25 5 20
VO = 0 V to 4 V
VO = 0.2 V to 4 V RL = 100k RL = 10k
TMIN to TMAX RL = 1k TMIN to TMAX NOISE/HARMONIC PERFORMANCE Input Voltage Noise 0.1 Hz to 10 Hz f = 10 Hz f = 100 Hz f = 1 kHz f = 10 kHz Input Current Noise 0.1 Hz to 10 Hz f = 1 kHz Harmonic Distortion f = 10 kHz DYNAMIC PERFORMANCE Unity Gain Frequency Full Power Response Slew Rate Settling Time to 0.1% to 0.01% INPUT CHARACTERISTICS Common-Mode Voltage Range1 TMIN to TMAX CMRR TMIN to TMAX Input Impedance Differential Common Mode OUTPUT CHARACTERISTICS Output Saturation Voltage2 V O L V E E TMIN to TMAX VCCVOH TMIN to TMAX V O L V E E TMIN to TMAX VCCVOH TMIN to TMAX V O L V E E TMIN to TMAX VCCVOH TMIN to TMAX Operating Output Current TMIN to TMAX Short Circuit Current Capacitive Load Drive POWER SUPPLY Quiescent Current Power Supply Rejection TMIN to TMAX
400 400 80 80 15 10
1000 150 30
2 25 21 16 13 18 0.8 RL = 10k to 2.5 V VO = 0.25 V to 4.75 V 93 1.8 210 3 1.4 1.8 0.2 0.2 66 66 4 4 80 1013 0.5 1013 2.8 ISINK = 20 µA ISOURCE = 20 µA ISINK = 2 mA ISOURCE = 2 mA ISINK = 15 mA ISOURCE = 15 mA 15 12 25 350 TMIN to TMAX VS+ = 5 V to 15 V 620 80 800 66 66 0.2 0.2 72 66
2 25 21 16 13 18 0.8 93 1.8 210 3 1.4 1.8 4 4 80 1013 0.5 1013 2.8
µV p-p n V / H z n V / H z n V / H z n V / H z fA p-p fA/Hz dB MHz kHz V/µs µs µs V V dB dB pF pF
VO p-p = 4.5 V VO = 0.2 V to 4.5 V
VCM = 0 V to +2 V
5 10 40 80 300 800
7 10 14 20 55 80 110 160 500 1000 1500 1900 15 12
5 10 40 80 300 800
7 10 14 20 55 80 110 160 500 1000 1500 1900
25 350 620 80 800
mV mV mV mV mV mV mV mV mV mV mV mV mA mA mA pF µA dB dB
70 70
2
REV. A
(VS = +5 volts (@ TA = +25 C, VCM = 0 V, VOUT = 0 V unless otherwise noted)
Parameter DC PERFORMANCE Initial Offset Max Offset over Temperature Offset Drift Input Bias Current a t T MAX Input Offset Current a t T MAX Open-Loop Gain TMIN to TMAX RL = 10k TMIN to TMAX RL = 1k TMIN to TMAX NOISE/HARMONIC PERFORMANCE Input Voltage Noise 0.1 Hz to 10 Hz f = 10 Hz f = 100 Hz f = 1 kHz f = 10 kHz Input Current Noise 0.1 Hz to 10 Hz f = 1 kHz Harmonic Distortion f = 10 kHz DYNAMIC PERFORMANCE Unity Gain Frequency Full Power Response Slew Rate Settling Time to 0.1% to 0.01% INPUT CHARACTERISTICS Common-Mode Voltage Range 1 TMIN to TMAX CMRR TMIN to TMAX Input Impedance Differential Common Mode OUTPUT CHARACTERISTICS Output Saturation Voltage 2 VOLVEE TMIN to TMAX V CC V OH TMIN to TMAX VOLVEE TMIN to TMAX V CC V OH TMIN to TMAX VOLVEE TMIN to TMAX V CC V OH TMIN to TMAX Operating Output Current TMIN to TMAX Short Circuit Current Capacitive Load Drive POWER SUPPLY Quiescent Current Power Supply Rejection TMIN to TMAX Conditions Min AD820A Typ Max 0.1 0.5 2 2 0.5 2 0.5 400 400 80 80 20 10 1000 150 30 0.8 1.5 25 5 20 400 400 80 80 20 10 Min AD820B Typ Max 0.3 0.5 2 2 0.5 2 0.5 1000 150 30 0.4 1 10 2.5 10
AD820
Units mV mV µV/°C pA nA pA nA V/mV V/mV V/mV V/mV V/mV V/mV
VCM = 5 V to 4 V
VO = 4 V to 4 V RL = 100k
2 25 21 16 13 18 0.8 RL = 10k VO = ± 4.5 V 93 1.9 105 3 1.4 1.8 5.2 5.2 66 66 4 4 80 1013 0.5 1013 2.8 ISINK = 20 µA ISOURCE = 20 µA ISINK = 2 mA ISOURCE = 2 mA ISINK = 15 mA ISOURCE = 15 mA 15 12 30 350 TMIN to TMAX VS+ = 5 V to 15 V 650 80 800 70 70 5.2 5.2 72 66
2 25 21 16 13 18 0.8 93 1.8 105 3 1.4 1.8 4 4 80 1013 0.5 1013 2.8
µV p-p nV/ Hz nV/ Hz nV/ Hz nV/ Hz fA p-p fA/Hz dB MHz kHz V/µs µs µs V V dB dB pF pF
VO p-p = 9 V VO = 0 V to ± 4.5 V
VCM = 5 V to +2 V
5 10 40 80 300 800
7 10 14 20 55 80 110 160 500 1000 1500 1900 15 12
5 10 40 80 300 800
7 10 14 20 55 80 110 160 500 1000 1500 1900
30 350 620 80 800
mV mV mV mV mV mV mV mV mV mV mV mV mA mA mA pF µA dB dB
70 70
REV. A
3
AD820SPECIFICATIONS (V =
S
15 volts (@ TA = +25 C, VCM = 0 V, VOUT = 0 V unless otherwise noted)
Min AD820A Typ 0.4 0.5 2 2 40 0.5 2 0.5 500 500 100 100 30 20 2000 500 45 Max 2 3 25 5 20 500 500 100 100 30 20 Min AD820B Typ Max 0.3 0.5 2 2 40 0.5 2 0.5 2000 500 45 1.0 2 10 2.5 10 Units mV mV µV/°C pA pA nA pA nA V/mV V/mV V/mV V/mV V/mV V/mV µV p-p n V / H z n V / H z n V / H z n V / H z fA p-p fA/Hz dB MHz kHz V/µs µs µs 14 14 90 1013 0.5 1013 2.8 V V dB dB pF pF
Parameter DC PERFORMANCE Initial Offset Max Offset over Temperature Offset Drift Input Bias Current a t T MAX Input Offset Current a t T MAX Open-Loop Gain TMIN to TMAX
Conditions
V CM = 0 V VCM = 10 V V CM = 0 V VO = +10 V to 10 V RL = 100k RL = 10k
TMIN to TMAX RL = 1k TMIN to TMAX NOISE/HARMONIC PERFORMANCE Input Voltage Noise 0.1 Hz to 10 Hz f = 10 Hz f = 100 Hz f = 1 kHz f = 10 kHz Input Current Noise 0.1 Hz to 10 Hz f = 1 kHz Harmonic Distortion f = 10 kHz DYNAMIC PERFORMANCE Unity Gain Frequency Full Power Response Slew Rate Settling Time to 0.1% to 0.01% INPUT CHARACTERISTICS Common-Mode Voltage Range 1 TMIN to TMAX CMRR TMIN to TMAX Input Impedance Differential Common Mode OUTPUT CHARACTERISTICS Output Saturation Voltage2 VOLVEE TMIN to TMAX V C C VO H TMIN to TMAX VOLVEE TMIN to TMAX V C C VO H TMIN to TMAX VOLVEE TMIN to TMAX V C C VO H TMIN to TMAX Operating Output Current TMIN to TMAX Short Circuit Current TMIN to TMAX Capacitive Load Drive POWER SUPPLY Quiescent Current Power Supply Rejection TMIN to TMAX
2 25 21 16 13 18 0.8 RL = 10k VO = ± 10 V 85 1.9 45 3 4.1 4.5 15.2 15.2 70 70 14 14 80 1013 0.5 1013 2.8 ISINK = 20 µA ISOURCE = 20 µA ISINK = 2 mA ISOURCE = 2 mA ISINK = 15 mA ISOURCE = 15 mA 20 15 45 350 TMIN to TMAX VS+ = 5 V to 15 V 700 80 900 70 70 15.2 15.2 74 74
2 25 21 16 13 18 0.8 85 1.9 45 3 4.1 4.5
VO p-p = 20 V VO = 0 V to ± 10 V
VCM = 15 V to 12 V
5 10 40 80 300 800
7 10 14 20 55 80 110 160 500 1000 1500 1900 20 15
5 10 40 80 300 800
7 10 14 20 55 80 110 160 500 1000 1500 1900
45 350 700 80 900
mV mV mV mV mV mV mV mV mV mV mV mV mA mA mA mA pF µA dB dB
70 70
4
REV. A
(VS = 0, 3 volts (@ TA = +25 C, VCM = 0 V, VOUT = 0.2 V unless otherwise noted)
Parameter DC PERFORMANCE Initial Offset Max Offset over Temperature Offset Drift Input Bias Current a t T MAX Input Offset Current a t T MAX Open-Loop Gain TMIN to TMAX RL = 10k TMIN to TMAX RL = 1k TMIN to TMAX NOISE/HARMONIC PERFORMANCE Input Voltage Noise 0.1 Hz to 10 Hz f = 10 Hz f = 100 Hz f = 1 kHz f = 10 kHz Input Current Noise 0.1 Hz to 10 Hz f = 1 kHz Harmonic Distortion f = 10 kHz DYNAMIC PERFORMANCE Unity Gain Frequency Full Power Response Slew Rate Settling Time to 0.1% to 0.01% INPUT CHARACTERISTICS Common-Mode Voltage Range 1 TMIN to TMAX CMRR TMIN to TMAX Input Impedance Differential Common Mode OUTPUT CHARACTERISTICS Output Saturation Voltage2 VOLVEE TMIN to TMAX V C C VO H TMIN to TMAX VOLVEE TMIN to TMAX V C C VO H TMIN to TMAX VOLVEE TMIN to TMAX V C C VO H TMIN to TMAX Operating Output Current TMIN to TMAX Short Circuit Current TMIN to TMAX Capacitive Load Drive POWER SUPPLY Quiescent Current Power Supply Rejection TMIN to TMAX Conditions Min AD820A-3V Typ 0.2 0.5 1 2 0.5 2 0.5 300 400 60 80 10 8 1000 150 30 Max 1 1.5 25 5 20
AD820
Units mV mV µV/°C pA nA pA nA V/mV V/mV V/mV V/mV V/mV V/mV µV p-p n V / H z n V / H z n V / H z n V / H z fA p-p fA/Hz dB MHz kHz V/µs µs µs 2 2 74 1013 0.5 1013 2.8 V V dB dB pF pF
VCM = 0 V to +2 V
VO = 0.2 V to 2 V RL = 100k
2 25 21 16 13 18 0.8 RL = 10k to 1.5 V VO = ± 1.25 V 92 1.5 240 3 1 1.4 0.2 0.2 60 60
VO p-p = 2.5 V VO = 0.2 V to 2.5 V
VCM = 0 V to +1 V
ISINK = 20 µA ISOURCE = 20 µA ISINK = 2 mA ISOURCE = 2 mA ISINK = 10 mA ISOURCE = 10 mA 15 12 18 15
5 10 40 80 200 500
7 10 14 20 55 80 110 160 400 400 1000 1000
25 350
mV mV mV mV mV mV mV mV mV mV mV mV mA mA mA mA pF µA dB dB
TMIN to TMAX VS+ = 3 V to 15 V
70 70
620 80
800
REV. A
5
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