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Products / Opto-Electronics /Pulse & Impulse Generators /Transimpedance Amplifiers (Gated) /

Transimpedance Amplifiers (Gated)

Overview GIA100 (Gated) TZA200 TZA400 TZA500 Order Now!

SIMTRUM offers a wide range of transimpedance Amplifers which employs precision differential or 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. These ranges of transimpedance amplifiers are particularly useful for the measurement of current from photodiodes. Use the table below to find a device that matches your needs. Accessories, software, and drivers are available - complete your purchase with a packaged solution that meets your needs.

Input	TZA 200	TZA 400	TZA 500
Rise Time	35ns (10mHz)	1µs (G≤5x105)	45µs
Interfaces	DB9 (analogue outputs)	Hardwire interface (DB25)	USB & control interface (DB25)
Noise Equivalent Current	1µA (RMS)	500pA (RMS)	30pA (RMS)
Gain Control	No	Optionally 4 or 16 stages	6 gain stages
Bandwidth Control	No		4 Bandwidths
Polarity Control	No		Yes
Auto-null Function	No		Yes

The Gated Integrated Amplifier GIA 100

Product Brochure:

Gated Integrating Amplifier | GIA100 Minimum Pulse Timing

employs dual monolithic switched integrators. When paired with a photodiode, the boxcar amplifier measures the energy of single optical pulses. The GIA100 design results in very low leakage error, charge injection error and pickup. The precision input stage may be configured for current or voltage inputs. It is also useful for signal processing in a wide range of applications such as photodiode monitoring and time domain signal analysis as the output is a voltage linearly proportional to the integral of the input during a period set by a TTL-compatible gate. The fast response time at high signal-noise-ratio makes the GIA series particularly useful in systems control feedback loops and online production control.

Characteristics

- Output: linear analogue proportional to integral of input

- Interfaces: DB37 (hardwire control and analogue outputs)

- Switching time: 1µs

- Gain control: 4 gain stages

Applications

- System control feedback loops

- Online production control

- Industrial Sector

- OEMs

Input
Range (Min = noise equivalent input, Max = full scale)	1nA – 100µA	10µV – 1V
Connectors	BNC or BR2 (Adapters for other connector systems available)	BNC or BR2 (Adapters for other connector systems available)
Output
Range (full scale)	10V (Max)	10V (Max)
Function	Linear analogue: Vout = factorscale ⁄ 100 pF ∫ Iin dt	Linear analogue: Vout = faktorscale ⁄ 1µs ∫ Vin dt
Output scale	1, 2, 5, 10 (typ.)	1, 2, 5, 10 (typ.)
Connectors	BNC and DB9 (Adapters for other connector systems available)	BNC and DB9 (Adapters for other connector systems available)
Max. repetition rate	285 kHz	285 kHz
Accuracy	± 3% (min)	± 3% (min)
Linearity	± 0,1% FSR (max)	± 0,1% FSR (max)
Output impedance	1 Ω (max)	1 Ω (max)
Logic
Switching time (integrate, hold, reset, gain)	1 µs (max)	1 µs (max)
Power supply
Type	Wall plug (supplied)	Wall plug (supplied)
Dimensions	30 mm x 50 mm x 60 mm	30 mm x 50 mm x 60 mm
Dimensions
2 channels	130 mm x 66 mm x 120 mm (w x h x l)	130 mm x 66 mm x 120 mm (w x h x l)
4 channels	130 mm x 106 mm x 120 mm (w x h x l)	130 mm x 106 mm x 120 mm (w x h x l)
> 4 channels	19″-rack, 3U	19″-rack, 3U

TZA 200 Transimpedance Amplifier

Product Brochure: TZA200englRevC1 | TZA200_engl_prospekt

The TZA200 is designed for precise, high speed measurement of current in the µA to mA range. The output is a

voltage linearly proportional to the input current 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.

Characteristics

-Receptacles: BNC (input and output)

-Rise time: 35ns (10MHz)

-Noise equivalent current: 1 µA(RMS)

-Gain control: None

Applications

- Industrial

-OEMs

Input	CONDITION	MIN	TYP	MAX	UNIT
Input range (full scale)				4.5	mA
Noise equivalent current (NEIRMS)				1	µA
Connectors			BNC (Adapters for other connector systems available.)
Output
Function			Linear analogue : Vout = scale factor x Iin
Output range (full scale)	High-Z termination	4		4.5	V
Output range (full scale)	50Ω termination	2		2.25	V
Connectors			BNC (Adapters for other connector systems available.)
Output scale	High Z-termination		1		V/mA
Output scale	50Ω termination		0.5		V/mA
Rise /Fall time (10% – 90%)	Source capacitance < 100pF			35	ns
Setting time (1%)	Source capacitance < 100pF			100	ns
Accuracy		± 1			%
Output impedance				50	Ω
Power supply
Type			Wall plug (supplied)
Dimensions
	1 channel	102 x 45 x 116 (w x h x l)			mm
	4 channels	102 x 106 x 116 (w x h x l)			mm
	19“ rack modules	3U

TZA 400 Transimpedance Amplifier

Product Brochures: tza400englrevb | tza400_engl_web

The TZA400 is designed for precise measurement of current, from pA to mA. The output is a voltage linearly proportional

to the input current. The gain of the TZA400 is controlled via a hard-wire interface on the back panel.

Characteristics

-Interface: Hard-wire (DB25)

-Rise time: 1µs (G≤5×105); 4µs (higher gains)

-Noise equivalent current: 500 p(ARMS)

-Gain control: 16 gain ranges in 1-2-5 pattern or 4 gain ranges in decade spacing

Applications

- Industrial

-OEMs

	CONDITIONS	MIN	TYP	MAX	UNITS
Current ranges (full scale)	Maximum range		3.7		mA
	Minimum range		37		nA
Noise equivalent current (NEPRMS)	Range: 3.7mA			2.5	µA
	Range: 37nA			500	pA
Connectors			BNC (Adapters for other connector systems available)
Output		0		3.7	V
Function			Linear analogue : Vout = scale factor x Iin
Connectors			BNC (Adapters for other connector systems available) und DB25
Output scale with 16 range option, range:	3.7mA		1		V / mA
	1.85mA		2		V / mA
	740µA		5		V / mA
	370µA		0.01		V / µA
	185µA		0.02		V / µA
	74µA		0.05		V / µA
	37µA		0.1		V / µA
	18.5µA		0.2		V / µA
	7.4µA		0.5		V / µA
	3.7µA		1		V / µA
	1.85µA		2		V / µA
	740nA		5		V / µA
	370nA		0.01		V / nA
	185nA		0.02		V / nA
	74nA		0.05		V / nA
	37nA		0.1		V / nA
Output scale with 4 range option, range:	3.7mA		1		V / mA
	370µA		0.01		V / µA
	37µA		0.1		V / µA
	3.7µA		1		V / µA
Output range (full scale)				10	V
Rise / Fall time (10% – 90%)	Source capacitance < 100pF			1	µs
Setting time (1%)	Source capacitance < 100pF			2	µs
Accuracy		± 1			%
Output impedance				50	Ω
Logic
Current required for switching	HI = 5V	-100	5	100	nA
Current required for switching	LO = 0V	-100	0	100	nA
Dead time during change of range				2 (Limited by setting time. The logical switch is complete within 20ns.)	µs
Power supply
Type		Wall plug (supplied)
Dimensions
	1 channel	103 x 45 x 116 (w x h x l)			mm
	4 channels	103 x 106 x 116 (w x h x l)			mm
	19″- rack modules	3U

TZA 500 Transimpedance Amplifier

Product Brochure: tza500engl_revd | TZA500_engl

The TZA500 is designed for precise measurement of current, from pA to mA. The output is a voltage linearly proportional to the input current. The TZA500 is very flexible with USB and hard-wire interface control of gain, bandwidth, and polarity. A graphical user interface is delivered with the amplifier.

Characteristics

-Interfaces: USB and hard-wire (DB25)

-Rise time: 45µs

-Noise equivalent current: 30 p(ARMS)

-Gain, bandwidth, and polarity control: 6 gain ranges; 4 bandwidths; polarity inversion

-Auto-null function: up to 10V offset nulling

Applications

- Industrial

-OEMs

Input	CONDITION	MIN	TYP	MAX	UNIT
Current ranges (full scale)	Maximum range		3.7		mA
	Minimum range		37		nA
Noise equivalent current (NEPRMS)	Range: 3.7mA			2.5	µA
	Range: 37nA			500	pA
Connectors			BNC (Adapters for other connector systems available)
Output		0		3.7	V
Function			Linear analogue : Vout = scale factor x Iin
Connectors			BNC (Adapters for other connector systems available) und DB25
Output scale with 16 range option, range:	3.7mA		1		V / mA
	1.85mA		2		V / mA
	740µA		5		V / mA
	370µA		0.01		V / µA
	185µA		0.02		V / µA
	74µA		0.05		V / µA
	37µA		0.1		V / µA
	18.5µA		0.2		V / µA
	7.4µA		0.5		V / µA
	3.7µA		1		V / µA
	1.85µA		2		V / µA
	740nA		5		V / µA
	370nA		0.01		V / nA
	185nA		0.02		V / nA
	74nA		0.05		V / nA
	37nA		0.1		V / nA
Output scale with 4 range option, range:	3.7mA		1		V / mA
	370µA		0.01		V / µA
	37µA		0.1		V / µA
	3.7µA		1		V / µA
Output range (full scale)				10	V
Rise / Fall time (10% – 90%)	Source capacitance < 100pF			1	µs
Setting time (1%)	Source capacitance < 100pF			2	µs
Accuracy		± 1			%
Output impedance				50	Ω
Logic
Current required for switching	HI = 5V	-100	5	100	nA
Current required for switching	LO = 0V	-100	0	100	nA
Dead time during change of range				2 (Limited by setting time. The logical switch is complete within 20ns.)	µs
Power supply
Type		Wall plug (supplied)
Dimensions
	1 channel	103 x 45 x 116 (w x h x l)			mm
	4 channels	103 x 106 x 116 (w x h x l)			mm
	19″- rack modules	3U

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