Transimpedance Amplifiers

Model 312B

Analog Modules, Inc. (AMI) designs and manufactures a range of transimpedance amplifiers for OEM, medical and research applications. AMI’s amplifiers combine low noise, high gain, large dynamic range, and small package size.

The 311 Series are state-of-the-art precision amplifiers designed for current source input applications in which high gain and low noise are required. The 341 series is the same amplifier with DC coupling.

The Model 313A is a state-of-the-art bipolar amplifier designed for current source input applications in which high gain and low noise are required. The design is optimized for high-speed response and has a lower input impedance than the 312B series, permitting operation with higher capacitive sources.

 

Data Sheets (PDF Format) are available for models listed below.

ModelBandwidth
(Small Signal)
GainInput Noise
(A/Root Hz)
Output SwingFeatures
311-1120Hz to 2kHz1GV/A7fA± 3.5VPrecision AC; Lowest noise amps
311-2120Hz to 10kHz100MV/A20fA± 3.5VPrecision AC; Lowest noise amps
311-3120Hz to 150kHz10 to 100MV/A0.58pA± 6VTrimpot adjustable gain
312B-1DC to 65MHz1MV/A0.8pA± 3VUp to 100pF input capacitance
AC or DC Coupling
313A-11kHz to 250MHz20kV/A6.5pA-1.2 to 2VHighest bandwidth
341-1DC to 2kHz1GV/A7fA± 3.5VPrecision AC; Lowest noise amps
341-2DC to 10kHz100MV/A20fA± 3.5VPrecision AC; Lowest noise amps
341-3DC to 150kHz10 to 100MV/A0.58pA± 6VPrecision AC; Variable gain and offset

Specifications are subject to change without notice.

Notes:
– All Specifications valid for 50ohm load
– Tolerance on noise and bandwidth is ±20%

Application Notes available on selected models.

Instructions for Specifying Part Number:

● For amplifiers available with non-inverting or inverting polarities, add -NI or -INV to part number.
● Proper compensation of transimpedance amplifiers requires statement of the source capacitance (add -_pF to the part number).

Examples:

Transimpedance Amplifiers
Model: 341-1-INV-100pF
Polarity: Inverting
Input Capacitance: 100pF

Amplifier Performance Curves

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