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Low-noise voltage preamplifier

PRODUCTS > PHOTONICS > AMPLIFIERS > LOW-NOISE VOLTAGE PREAMPLIFIER
AMP200 Low-noise voltage preamplifier
AMP200 Low-noise voltage preamplifier AMP200 Low-noise voltage preamplifier functional diagram AMP200 Low-noise voltage preamplifier frequency response AMP200 Low-noise voltage preamplifier input referred voltage noise

Koheron AMP200 is a low-noise (down to 2.4 nV/√Hz), wide-bandwidth (up to 13 MHz) voltage preamplifier. Thanks to the high-impedance input (10 kΩ or 1 MΩ) many sensors can be directly interfaced to the amplifier. The input can be either AC or DC coupled and the input offset voltage is adjustable over a ±100 mV range. A strong adjustable-gain output buffer is capable of driving up to ±2.2 V across a 50 Ω load.

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Specifications

AMP200-1M AMP200-10k
Gain, Bandwidth
Gain range 5 to 500 5 to 500
3 dB bandwidth(gain = 10) 8 MHz 13 MHz
Input
Input impedance 1 MΩ 10 kΩ
Front-end amplifier Junction-gate field-effect transistor Bipolar junction transistor
Input-referred voltage noise(10 kHz, 50 Ω input) 4.7 nV/√Hz 2.4 nV/√Hz
Input offset adjustement range ±100 mV ±100 mV
Coupling AC or DC AC or DC
AC cutoff frequency at 3 dB 1.59 Hz 0.72 Hz
Input voltage range -1.7 V to 1.7 V -1.7 V to 1.7 V
Output
Output impedance 50 Ω 50 Ω
Slew rate(high impedance) 60 V/µs 60 V/µs
Slew rate(50 Ω) 10 V/µs 10 V/µs
Output voltage range(high impedance) -8.5 V to 8.5 V -8.5 V to 8.5 V
Output voltage range(50 Ω) -2.2 V to 2.2 V -2.2 V to 2.2 V
Power supply
Positive supply voltage 12 V 12 V
Negative supply voltage -12 V -12 V
Supply current per rail 100 mA 100 mA
Quiescent current per rail 22 mA 22 mA
Other
Outside dimensions 66 mm x 50 mm x 13 mm 66 mm x 50 mm x 13 mm
Weight 20 g 20 g
Operating temperature -20 °C to 70 °C -20 °C to 70 °C

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Functional diagram

AMP200 Low-noise voltage preamplifier functional diagram
AMP200 functional diagram

Frequency response

AMP200-1M Low-noise voltage preamplifier frequency response
AMP200-1M (1 MΩ) frequency response
AMP200-10k Low-noise voltage preamplifier frequency response
AMP200-10k (10 kΩ) frequency response

Input referred voltage noise

Input-referred voltage noise measured for a gain of 25 with DC-coupled 50 Ω terminated input.

AMP200-1M Low-noise voltage preamplifier input referred voltage noise
AMP200-1M (1 MΩ) input referred voltage noise
AMP200-10k Low-noise voltage preamplifier input referred voltage noise
AMP200-10k (10 kΩ) input referred voltage noise

Ordering codes

PRODUCT NUMBER ATTRIBUTE
AMP200-1M Input impedance 1 MOhm
AMP200-10k Input impedance 10 kOhm

Export information

PRODUCT NUMBER COUNTRY OF ORIGIN HS CODE HTSUS ECCN
AMP200-1M France 90303370 9030333800 EAR99
AMP200-10k France 90303370 9030333800 EAR99

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