Transimpedance Amplifiers TZA200
9Pages

TZA200 Optoelectronics & Engineering Services High Speed Transimpedance Amplifier HIGHLIGHTS APPLICATIONS • Small signal rise time (10-90%) 35 ns • Production automation (eg: connectorization, pigtailing) • Bandwidth 10 MHz • Component testing • Maximum input current 4.5 mA • Quality control • Noise equivalent current (NEIRMS) 1 µA • OEM (eg: laser noise monitoring) MEASUREMENT PRINCIPLE The TZA200 amplifier employs precision single ended transimpedance input stages to provide for low offset and high linearity throughout the full dynamic range. The single ended input stage is required for applications where the current source is inherently grounded externally. FIELDS OF APPLICATION TZA200englRevC1.doc 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 the TZA200 series particularly useful in systems control feedback loops. Artifex Engineering Dortmunder Str. 16-18 26723 Emden, Germany These amplifiers have a particularly high bandwidth of 10MHz allowing monitoring of high frequency noise components of many light sources. The TZA200 series is insensitive to electromagnetic interference by design, an important factor when working in „dirty“ industrial environments. These units are provided in OEM-style enclosures. The case wings provide for mounting on standard 25mm and 1“ optical table tops and for OEM applications. Tel: +49-(0)4921-58908-0 Fax: +49-(0)4921-58908-29 mail: info@afx-eng.com http://www.afx-eng.com

ABSOLUTE MAXIMUM RATINGS Average Current 15mA Temperature Range 0 – 60 °C ORDERING INFORMATION Full order code: Options s Description G OEM gull wing L Case style (c): TZA Lab style Number of channels (n): 1 to 4 For example, a 2 channel, OEM style unit would be ordered as: TZA200G2 For customized systems, please contact us. 200 c n

SPECIFICATIONS PARAMETER CONDITIONS MIN TYP MAX UNITS INPUT Input range (full scale) 4.5 1 Noise equivalent current (NEIRMS) Connectors BNC mA µA 1 OUTPUT Function Output range (full scale) Linear analogue Vout = scale x Iin High-Z termination 50Ω termination 4.0 2.0 Rise / Fall time (10% - 90%) Settling time (1%) V BNC1 Connectors Output scale 4.5 2.25 High-Z termination 50Ω termination Source capacitance < 100pF 1 0.5 V / mA 35 100 Source capacitance < 100pF ns ns ±1 Accuracy % Output impedance 50 Ω POWER SUPPLY Type DIMENSIONS Wall plug (supplied) 1 channel 102 x 45 x 116 mm (w x h x l)...

CASE STYLES (Lab style) 1 CHANNEL 2 CHANNEL 4 CHANNEL

CASE STYLES (OEM style) 1 CHANNEL 2 CHANNEL 4 CHANNEL

THE FRONT AND BACK PANELS The front panel contains the input and output BNC connectors. The upper row of BNC connectors is for the current inputs. The channel count begins at the left. If the current source is a photodiode then the cathode is to be connected to the centre pin of the BNC. If a current source other than a photodiode is to be used, then the current drain is to be connected to the centre pin. The lower row of BNC connectors is for the amplifier outputs. The output is 0-4.5V, linearly proportional to the current input. The channel count begins at the left. A switch labelled...

INSTRUCTIONS FOR MEASUREMENT The TZA200 transimpedance amplifier comprises one to four independent measurement channels, depending on the model chosen. Each channel consists of a BNC receptacled current input and a BNC-output. These two user interfaces are arranged in logical groups (see „The Front and Back Panels“). To make a measurement, proceed as follows: 1. Turn the unit on. For the most accurate measurement, please allow for a 15 minute warm up before using. 2. Connect a single ended output current source to the desired channel via the corresponding receptacle. 3. Connect a BNC-cable...

DAMAGE The unit may be damaged by exceeding the maximum average input current. Please read „Absolute Maximum Ratings“ for these maximum values before working with the instrument. Use only the power supply and power supply cable provided with the unit. TROUBLESHOOTING In the event that a measurement is not successful, the following possibilities should be analysed: Symptom Possible Errors Correction No output • System is not switched on • Ensure the power cord is connected at both ends and switch the system on. • Fuse blown3 • Input power too low • Increase input power • Input or output...

NOTICE Artifex Engineering reserves the right to make changes to its products or to discontinue any product or service without notice and advises customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement and limitation of liability. Customers are responsible for their applications using Artifex Engineering components. Artifex...