NF CA-261F2/CA-206L2 CA Series Low-Noise Differential Amplifier

Model：CA-261F2/CA-206L2 Country of Origin：Japan

Category：Precision Differential Amplifier

Overview：

CA-461F2 is a low noise differential amplifier which is realized input referred noise voltage density 1.5nV/√Hz and voltage gain 100 times. The CA-461F2 is not only realized low noise but also excellent DC characteristics (0.3µV/ºC) and frequency response (DC to 200kHz) by using low noise circuit of negative feedback technology. Low noise characteristics is performed low signal source impedance(less than 500 ohm). High precision signal processing and high density mounting are possible for using 20 pin single-inline package which has 6 surface strict shield

Features

Specifications

Application Notes

Functions & Configuration

CA-261F2

CA-206L2

This is a high-precision, low-noise amplifier module that can be configured with only a few external components.

Model	Product Name	Input Type	Voltage Gain	Frequency Characteristics	Input-Referred Noise
CA-261F2	Low-Noise Amplifier	Unbalanced/ Single-Ended Ground	40dB ±0.2dB	DC ∼ 200kHz	0.8n/√Hz (typ.)

CA-271F4	Low-Noise FET Amplifier	Unbalanced/ Single-Ended Ground		DC ∼ 10MHz	1.6n/√Hz (typ.)

CA-461F2	Low-Noise Differential Amplifier	Differential		DC ∼ 200kHz	1.5n/√Hz (typ.)

CA-471F4	Low-Noise FET Differential Amplifier	Differential		DC ∼ 10MHz	2.5n/√Hz (typ.)

Power Supply Voltage: ±15V

Dimensions: : 67 x 10.5 x 20 (mm), 6-sided sealed, 20-pin SIP

Model

Product Name

Input Type

Gain

Frequency Characteristics

Frequency Bandwidth

Max.
Output Voltage

Max.. Output Current

CA-102R3

High-Speed Inverting Amplifier

According to Rin

According to the 2 external resistors (Rin, Rnf)

DC ∼ 10MHz

DC∼ 1MHz

±10V

±10

CA-206L2

Programmable Gain Amplifier

Unbalanced/Single-Ended Ground

1, 2, 5, 10,
20, 50, 100x

DC ∼ 500kHz

DC ∼ 100kHz

±5mA

CA-406L2

Differential Amplifier

Differential Amplifier
Differential

Low noise : 1.5nV/√Hz

High CMRR : 100dB or greater

Good DC response : 0.3µV/ºC

Wide band : DC to 200kHz*

High gain : x100

Single in-line package with 6 surface strict shield

Absolute rating
Supply voltage(±Vs)	± 16.5V
Signal input voltage
Differential input	± 1V, ±0.7V (at power off)
Common input	±Vs,±0.7V (at power off)
Offset input voltage	± Vs
Input
Input type	DC coupling, Balanced differential input
Differential input impedance	100k ohm (typ) within 5%@DC(single ended)
Differential input impedance	Parallel capacitance 80pF(typ)
Common input impedance	500k ohm;(typ) @DC
Common input impedance	Parallel capacitance 130pF(typ)
Linear max. differential input voltage	±100mV @1kHz
Linear max. common input voltage	±10V @1kHz
Input bias current	±30nA(typ)
Input offset current	±7nA(typ)
CMRR(input referred)	100dB or greater 120dB(typ)@60Hz
Input referred noise voltage density	1.8nV/√Hz or less @1kHz (inputshort circuit)
Input referred noise voltage density	1.5nV/ √Hz (typ) @1kHz(input short circuit)
Input referred noise current density	2.5pA/√Hz (typ) @10kHz
Input referred offset voltage	±40µV(typ)(input short circuit)
Input referred offset voltage	Possible to adjust zero by external trimmerpotentiometer
Input referred DC drift	±0.3µV /ºC(typ)(input short circuit) 0 to 40ºC
Output
Output type	Unbalanced single ended output
Max output voltage	±10V @1kHz (load R ≥1k ohm)
Max output current	±10mA
Slew rate	10V/µs (typ)
Output impedance	within 50W±5% @DC
Amplifier
Voltage gain	within 40±0.2dB @1kHz
Voltage gain frequency range	DC to 200kHz within +0.5/-3dB
Harmonic distortion	0.006% (typ) @1kHz±10Voutput
Power requirements
Recommended supply voltage	±15V±1V
Consumption current	±30mA or less, ±22mA(typ)
Circumstances
Temperature and humidity range	-20 to 70ºC 10 to 90%RH
Operating Storage	-30 to 80ºC 10 to 80%RH
Outer dimensions
Outline	SS 20 type(20 pins shielded SIP)
Outer dimensions	67 x 10.5 x 20mm not including projection
Weight(NET)	Approx. 20g

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