AD85052 View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
AD85052 Datasheet PDF : 58 Pages
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Precision Amplifiers (Bandwidth < 50 MHz)
Ultralow Offset Voltage (VOS ≤ 250 µV Max) Amplifiers
AD8597/AD8599: Ultralow Distortion, Ultralow Noise Operational Amplifier
The AD8597 (single) and AD8599 (dual) are very low noise, low distortion operational amplifiers ideal for use as preamplifiers. The low noise of 1.1 nV/√Hz
and low harmonic distortion of −120 dB (or better) at audio bandwidths give the devices the wide dynamic range necessary for preamplifiers in audio,
medical, and instrumentation applications. The excellent slew rate of 14 V/µs and 10 MHz gain bandwidth make them highly suitable for medical
applications. The low distortion and fast settling time make them ideal for buffering of high resolution data converters.
Features
• Low noise: 1.1 nV/√Hz at 1 kHz
• Low distortion: –120 dB THD @ 1 kHz
• Bandwidth: 10 MHz
• Supply current: 4.8 mA/amp typical
• Low offset voltage: 10 µV typical
• CMRR: 120 dB
Applications
• Professional audio preamplifiers
• ATE/precision testers
• Imaging systems
• Medical/physiologic measurements
• Precision data conversion
100
AD8599
±5V ≤ VSY ≤ ±15V
10
1
0.1
1
10
100
1k
FREQUENCY (Hz)
Voltage noise density vs. frequency.
AD8622: Dual, Low Power, Low Noise, Precision Amplifier
The AD8622 is a dual, precision, rail-to-rail output operational amplifier with a low supply current of only 350 µA maximum over temperature and supply
voltage. It also offers ultralow offset, drift, and voltage noise combined with very low input bias current over the full operating temperature range. It is
perfectly suited for applications where large error sources cannot be tolerated.
Features
• Very low offset voltage: 125 µA maximum
• Supply current: 215 µA/amp typical
• Input bias current: 200 pA maximum
• Low input offset voltage drift: 1.2 µV/°C
maximum
• Very low voltage noise: 11 nV/√Hz
Applications
• Portable precision instrumentation
• Laser diode control loops
• Medical instrumentation
• Strain gage amplifier
• Thermocouple amplifiers
R9
2.87k
R1
2.67k
VIN
C2
U1 = AD8622
1.8 F
C4
1.8 F
R2
6.49k
+VSY
R5
R6
C1
8.2 F
R3
1k
1/2
V1
U1
–VSY
2.87k
6.04k
C3
8.2 F
+VSY
1/2
V2
U1
R4
R7
1k
–VSY
SECTION A 9.09k
R8
SECTION B 9.09k
C6
U2 = ADA4062-2
5.6 F
C8
10 F
R10
23.2k
+VSY
R11
R12
C5
680nF
1/2
V3
U2
–VSY
4.75k
29.4k
C7
180nF
+VSY
1/2
U2
SECTION C
–VSY
SECTION D
VOUT
Circuit Note CN-0127, 8-Pole Active Low-Pass Filter Optimized for Precision, Low Noise, and
High Gain Reference Circuit, www.analog.com/CN0127.
18 | Operational Amplifier Selection Guide
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