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MFG:ADI D/C:09
Part Number: AD620
MFG: ADI
D/C: 09
Description: The AD620 is a low cost, high accuracy instrumentation amplifier that requires only one external resistor to set gains ...
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AD620
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DataSheet
General Description
AD620 General Description
The AD620 is a low cost, high accuracy instrumentation amplifier that requires only one external resistor to set gains of 1 to 1000. Furthermore, the AD620 features 8-lead SOIC and DIP packaging that is smaller than discrete designs, and offers lower power (only 1.3 mA max supply current), making it a good fit for battery powered, portable (or remote) applications.
The AD620, with its high accuracy of 40 ppm maximum nonlinearity, low offset voltage of 50 mV max and offset drift of 0.6 mV/°C max, is ideal for use in precision data acquisition systems, such as weigh scales and transducer interfaces. Furthermore, the low noise, low input bias current, and low power of the AD620 make it well suited for medical applications such as ECG and noninvasive blood pressure monitors.
The low input bias current of 1.0 nA max is made possible with the use of Superbeta processing in the input stage. The AD620 works well as a preamplifier due to its low input voltage noise of 9 nV/ÖHz at 1 kHz, 0.28 mV p-p in the 0.1 Hz to 10 Hz band, 0.1 pA/ÖHz input current noise. Also, the AD620 is well suited for multiplexed applications with its settling time of 15 ms to 0.01% and its cost is low enough to enable designs with one inamp per channel.
AD620 Maximum Ratings
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18 V
Internal Power Dissipation2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 650 mW
Input Voltage (Common Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±VS
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±25 V
Output Short Circuit Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Indefinite
Storage Temperature Range (Q) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to +150°C
Storage Temperature Range (N, R) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to +125°C
Operating Temperature Range
AD620 (A, B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40°C to +85°C
AD620 (S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55°C to +125°C
Lead Temperature Range
(Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C
Internal Power Dissipation2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 650 mW
Input Voltage (Common Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±VS
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±25 V
Output Short Circuit Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Indefinite
Storage Temperature Range (Q) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to +150°C
Storage Temperature Range (N, R) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to +125°C
Operating Temperature Range
AD620 (A, B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40°C to +85°C
AD620 (S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55°C to +125°C
Lead Temperature Range
(Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C
AD620 Features
EASY TO USE
Gain Set with One External Resistor
(Gain Range 1 to 1000)
(Wide Power Supply Range (±2.3 V to ±18 V)
(Higher Performance than Three Op Amp IA Designs
(Available in 8-Lead DIP and SOIC Packaging
(Low Power, 1.3 mA max Supply Current
(EXCELLENT DC PERFORMANCE ("B GRADE")
(50 V max, Input Offset Voltage
(0.6 V/°C max, Input Offset Drift
(1.0 nA max, Input Bias Current
(100 dB min Common-Mode Rejection Ratio (G = 10)
(LOW NOISE
(9 nV/ÖHz, @ 1 kHz, Input Voltage Noise
(0.28 V p-p Noise (0.1 Hz to 10 Hz)
(EXCELLENT AC SPECIFICATIONS
(120 kHz Bandwidth (G = 100)
(15 s Settling Time to 0.01%
Gain Set with One External Resistor
(Gain Range 1 to 1000)
(Wide Power Supply Range (±2.3 V to ±18 V)
(Higher Performance than Three Op Amp IA Designs
(Available in 8-Lead DIP and SOIC Packaging
(Low Power, 1.3 mA max Supply Current
(EXCELLENT DC PERFORMANCE ("B GRADE")
(50 V max, Input Offset Voltage
(0.6 V/°C max, Input Offset Drift
(1.0 nA max, Input Bias Current
(100 dB min Common-Mode Rejection Ratio (G = 10)
(LOW NOISE
(9 nV/ÖHz, @ 1 kHz, Input Voltage Noise
(0.28 V p-p Noise (0.1 Hz to 10 Hz)
(EXCELLENT AC SPECIFICATIONS
(120 kHz Bandwidth (G = 100)
(15 s Settling Time to 0.01%
AD620 Typical Application
Weigh Scales
ECG and Medical Instrumentation
Transducer Interface
Data Acquisition Systems
Industrial Process Controls
Battery Powered and Portable Equipment
ECG and Medical Instrumentation
Transducer Interface
Data Acquisition Systems
Industrial Process Controls
Battery Powered and Portable Equipment
AD620
PDF/DataSheet Download
- Datasheet: AD620
- File Size: 585059 KB
- Manufacturer: AD [Analog Devices]
- Click here to Download
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