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AD647

Features: Low Offset Voltage DriftMatched Offset VoltageMatched Offset Voltage Over TemperatureMatched Bias CurrentsCrosstalk: 124 dB at 1 kHzLow Bias Current: 35 pA max Warmed UpLow Offset Voltage: 250 mV maxLow Input Voltage Noise: 2 mV p-pHigh Open Loop Gain: 108 dBLow Quiescent Current: 2.8 mA...

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SeekIC No. : 004269677 Detail

AD647: Features: Low Offset Voltage DriftMatched Offset VoltageMatched Offset Voltage Over TemperatureMatched Bias CurrentsCrosstalk: 124 dB at 1 kHzLow Bias Current: 35 pA max Warmed UpLow Offset Voltage:...

AD647 Data Sheet

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Part Number:
AD647
Supply Ability:
5000

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  • 1~5000
  • Unit Price
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  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/5/28

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Product Details

Description



Features:

Low Offset Voltage Drift
Matched Offset Voltage
Matched Offset Voltage Over Temperature
Matched Bias Currents
Crosstalk: 124 dB at 1 kHz
Low Bias Current: 35 pA max Warmed Up
Low Offset Voltage: 250 mV max
Low Input Voltage Noise: 2 mV p-p
High Open Loop Gain: 108 dB
Low Quiescent Current: 2.8 mA max
Low Total Harmonic Distortion
Standard Dual Amplifier Pinout
Available in Hermetic Metal Can Package, Hermetic Surface Mount (20-Pin LCC) and Chip Form
MIL-STD-883B Processing Also Available
Single Version Available: AD547


Specifications

Model AD647J AD647K AD647L AD647S Units
Min Typ Max Min Typ Max Min Typ Max Min Typ Max
OPEN LOOP GAIN
VO = ±10 V, RL 2 k
TMIN to TMAX, RL = 2 k		 100,000
100,000		     250,000
250,000 		    250,000
250,000 		    250,000
250,000 		    V/V
V/V
OUTPUT CHARACTERISTICS
Voltage @ RL = 2 k, TMIN to TMAX
Voltage @ RL = 10 k, TMIN to TMAX
Short Circuit Current 		±10
±12		 ±12
±13
25 		  ±10
±12
 ±12
±13
25 		  ±10
±12		 ±12
±13
25 		  ±10
±12		 ±12
±13
25 		  V
V
mA
FREQUENCY RESPONSE
Unity Gain Small Signal
Full Power Response
Slew Rate, Unity Gain		 2.0 1.0
50
3.0		  
2.0		 1.0
50
3.0		   2.0 1.0
50
3.0		   2.0 1.0
50
3.0		   MHz
kHz
V/µs
INPUT OFFSET VOLTAGE1
Initial Offset
Input Offset Voltage vs. Temperature
Input Offset Voltage vs. Supply,
TMIN to TMAX		     1.0
10
200		     0.5
5
100 		    0.25
5
100 		    0.5
5
100 		mV
µV/°C
µV/V
INPUT BIAS CURRENT2
Either Input
Offset Current		   10
5		 75   10
52		 35   10
2		 35   10
2		 35 pA
pA
MATCHING CHARACTERISTICS3
Input Offset Voltage
Input Offset Voltage TMIN to TMAX
Input Bias Current
Crosstalk 		  124 1.0
10
35
  
124 		0.5
5
25
  124 0.25
2.5
25 		  124 0.5
10.0
25		 mV
µV/°C
pA
dB
INPUT IMPEDANCE
Differential
Common Mode 		  1012||6
1012||6		     1012||6
1012||6		     1012||6
1012||6		     1012||6
1012||6		   MΩ||pF
MΩ||pF
INPUT VOLTAGE RANGE
Differential
4
Common Mode
Common-Mode Rejection		 ±10
76 		±20
±12		   ±10
80 		±20
±12		   ±10
80 		±20
±12		   ±10
80 		±20
±12		   V
V
dB
INPUT NOISE
Voltage 0.1 Hz to 10 Hz
f = 10 Hz
f = 100 Hz
f = 1 kHz
f = 10 kHz 		  2
70
45
30
25 		    70
45
30
25 		4   70
45
30
25 		4   70
45
30
25 		4 µV p-p
nV/Hz
nV/Hz
nV/Hz
nV/Hz
POWER SUPPLY
Rated Performance
Operating
Quiescent Current		 ±5 ±15 ±18
2.8 		±5 ±15 ±18
2.8 		±5 ±15 ±18
2.8 		±5 ±15 ±18
2.8 		V
V
mA
TEMPERATURE RANGE
Operating, Rated Performance
Storage 		0
65 		  +70
+150 		0
65 		  +70
+150 		0
65 		  +70
+150 		0
65 		  +70
+150 		°C
°C
PACKAGE OPTION
TO-99 Style (H-08B)
LCC (E-20A)		 AD647JH AD647KH AD647LH AD647SH
AD647SE
AD647SE/883BH		  



Description

The AD647 is an ultralow drift, dual JFET amplifier that combines high performance and convenience in a single package.

The AD647 uses the most advanced ion-implantation and laser wafer drift trimming technologies to achieve the highest performance currently available in a dual JFET. Ion-implantation permits the fabrication of matched JFETs on a monolithic bipolar chip. Laser wafer drift trimming trims both the initial offset voltage and its drift with temperature to provide offsets as low as 100 µV (250 µV max) and drifts of 2.5 µV/°C max.

In addition to outstanding individual amplifier performance, the AD647 offers guaranteed and tested matching performance on critical parameters such as offset voltage, offset voltage drift and bias currents.

The high level of performance makes the AD647 especially well suited for high precision instrumentation amplifier applications that previously would have required the costly selection and matching of space wasting single amplifiers.

The AD647 is offered in four performance grades, three commercial (the J, K and L) and one extended (the S). All are supplied in hermetically sealed 8-pin TO-99 packages and are available processed to MIL-STD-883B. The LCC version is also available processed to MIL-STD-883B.




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