Product Model: DHPCA-100

Sufficient gain with adjustable gain
High signal-to-noise ratio, low noise;
Undistorted measured signal with sufficient bandwidth;

Instrument Introduction:

Bandwidth and Frequency Response
The DHPCA-100 offers the optimal combination of gain and bandwidth. At a gain setting of 103 V/A, it provides an ultra-high 3dB bandwidth of 200 MHz. Even at the highest gain setting of 10? V/A, the maximum cutoff frequency remains 220 kHz. For applications that do not require full bandwidth, the device features switchable 10 MHz and 1 MHz low-pass filters to minimize broadband noise.

Technical Parameters:
Transimpedance Gain: 102 to 10? V/A
Gain Accuracy: ±1%
Equivalent Input Voltage Noise: 2.8 nV/√Hz;
Gain Settings: Low Noise Mode, High Speed Mode;
Output Voltage: ±1V
Output Impedance: 50Ω

Transimpedance Gain from 102 to 10? V/A
Bandwidth up to 200 MHz
Rise Time as low as 1.8 ns
Internal Signal Filter
Adjustable Bias Voltage
Manual and Remote Control

Main Features:

High-Speed Current Amplifier
The DHPCA-100 variable gain transimpedance amplifier is ideal for applications requiring the conversion of small currents into usable voltages with bandwidths up to 200 MHz. It is well-suited for DC and AC measurements up to 200 MHz, time-resolved measurements down to the nanosecond region, and as a preamplifier for fast photodetector signals.
The DHPCA-100 includes numerous features, such as variable gain from 102 to 10? V/A, switchable AC/DC coupling, adjustable offset for baseline correction, adjustable bias voltage for fast photodiodes, switchable 10 MHz and 1 MHz low-pass filters, and manual and remote control capabilities. The DHPCA-100 is housed in a robust, compact EMI-shielded enclosure, making it an ideal general-purpose high-speed amplifier for a wide range of applications.

Matching Power Supply: Power Supply: PS-15-25-L
7-stage variable gain 102~10? V/A, 200 MHz upper bandwidth limit, 1.8 ns minimum rise time, switchable signal filters and DC/AC couplers, adjustable bias voltage and offset voltage, manual operation and remote control, suitable for fast photodetectors, preamplification for oscilloscopes, RF phase locking, and general laboratory applications.