TZA5000 pages

TZA500

Flexible Transimpedance Amplifier

HIGHLIGHTS

APPLICATIONS

Gain and
bandwidth control

6 gain ranges
4 bandwidths

Production automation
(e.g.: connectorization, pigtailing)

Auto-null function

up to 10V offset
nulling

Component testing, burn-in, lifetime

Maximum input
current

10 mA

OEM

Noise equivalent
current (NEIRMS)

30 pA

Settling time (1%)

100 µs

Quality control

MEASUREMENT PRINCIPLE
The TZA500 series of amplifiers employs
precision dual transimpedance input
stages to provide for high common mode
rejection and linearity throughout the full
dynamic range. The differential input stage
design requires a floating current input. If
the application involves a grounded
current source, a single ended amplifier
must be used.

TZA500Engl_RevC.doc

FIELDS OF APPLICATION
These transimpedance amplifiers are
particularly useful for the measurement of
current from photodiodes. The output is a
voltage linearly proportional to input
current and thus, to input power in
photodiode monitoring applications. The
fast response time at high signal-noiseratio makes this TZA series particularly
useful in systems control feedback loops.
The high sensitivity and large dynamic
range allow measurement of a wide range
of optical sources such as lasers and
Artifex Engineering
Dortmunder Str. 16-18
26723 Emden, Germany

LEDs via a variety of photodiodes for
these applications such as Si and InGaAs.
The TZA500 series is insensitive to
electromagnetic interference by design, an
important factor when working in „dirty“
industrial environments. The proprietary
auto-nulling function allows up to 10V of
offset nulling. This is particularly useful for
nulling dark current or for eliminating a DC
signal component to concentrate on signal
changes, such as in component burn-in
and life-time testing.

TZA

Differential
Input

Tel: +49-(0)4921-58908-0
Fax: +49-(0)4921-58908-29

Outpu

TZA

mail: info@afx-eng.com
http://www.afx-eng.com