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MFG:AD Package Cooled:500
Part Number: AD647
MFG: AD
Package Cooled: 500
Description: The AD647 is an ultralow drift, dual JFET amplifier that combines high performance and convenience in ...
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AD647
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DataSheet
General Description
AD647 General 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.
AD647 Maximum Ratings
| 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 |
|||||||||
AD647 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
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
AD647
PDF/DataSheet Download
- Datasheet: AD647
- File Size: 391791 KB
- Manufacturer:
- Click here to Download
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