Description

Femto Dlpca-200 Impedance Current Amplifier 

FEMTO DLPCA-200 impedance current amplifier PA class weak current signal

The DLPCA-200 variable gain amplifier is packaged according to its own characteristics and can be used in a wide range to convert small currents into usable voltages. It is ideal, for example, for solving current time and charge measurements into the microsecond region and as a preamplifier for photodiodes or lock-in systems. The DLPCA-200 offers variable gain values from 103 to 1011V/A, and allows current-sensitive measurements in the picomicroAMP series. There are switch-controlled AC/DC coupling, 10H2 low-pass filters and adjustable bias control sections used to change amplifiers for different measurement tasks and signal states with adjustable bias voltages connected to the input receptacle shield to provide optimized external diode connections to the amplifier circuit for input speed and noise performance.

FEMTO DLPCA-200 impedance current amplifier PA class weak current signal

Model numberDLPCA-200
Performance rangeLow noise                                                    high speed
Variable gain[V/A]10310410510610710810910510610710810910101011
broadband(-3dB ) [KHZ]5005004002005071.15005004002005071.1
Rise time(10%-90%)700 ns700 ns900 ns1.8μs7

μs

50μs300μs700 ns700 ns900 ns1.8μs7

μs

50μs300μs
Average input noise*

(/√Hz)

20 pA2.3 pA450 fA130 fA43 fA13 fA4.3 fA13 pA1.8 pA440 fA130 fA43 fA13 fA4.3 fA
accuracyGain±1%,flatness0.1dB
Low-pass filterAdjustable switch10Hz
Output performance±10V, ±30mA
bias±10v, maximum22mA,connect BNC shield,Input socket,Switchable toGND
Power supply±15V,+120mA /-80 mA typ., ±200 mA recommend
Control interface5 optical isolation digital inputs,TTL/CMOS compatible,Analog bias control voltage input
Case size170×60×45mm(L×W×H),heavy 320g(0.74 lb)

FEMTO DLPCA-200 impedance current amplifier PA class weak current signal

      






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