isolation Amplifier. NJM2795 Datasheet

NJM2795 Amplifier. Datasheet pdf. Equivalent

NJM2795 Datasheet
Recommendation NJM2795 Datasheet
Part NJM2795
Description Ground noise isolation Amplifier
Feature NJM2795; NJM2795 Ground noise isolation Amplifier with Adjustable Differential Gain  GENERAL DESCRIPTION T.
Manufacture New Japan Radio
Datasheet
Download NJM2795 Datasheet




New Japan Radio NJM2795
NJM2795
Ground noise isolation Amplifier
with Adjustable Differential Gain
GENERAL DESCRIPTION
The NJM2795 is a ground noise isolation amplifier. It
contains dual channel differential amplifier with Adjustable
Differential Gain.
It is developed for those car audio applications where long
connections between head unit and other components are
necessary and ground noise has to be eliminated.
Further the NJM2795 allow the user to alter the gain to
optimize the signal-to-noise ratio of their system. It is useful
in microphone amplifier applications.
PACKAGE OUTLINE
NJM2795V
FEATURES
Dual Channel Differential Amplifier
Adjustable Differential Gain
Operating Voltage
Operating Current
Maximum Output Voltage
Common mode rejection ratio
Supply Voltage Rejection Ratio
Total Harmonic Distortion
Equivalent Input Noise Voltage
Bipolar Technology
Package Outline
+6dB to +52dB
4.3 to 20V
7mA typ.
2Vrms min., @ THD=1%
80dB typ.
65dB typ.
0.005% typ.
2Vrms typ. @ Gv=+20dB
SSOP14
BLOCK DIAGRAM
V+
RG1-
IN1-
IN1+
RG1+
OUT1
VREF
RG2+
IN2+
IN2-
RG2-
GND
OUT2
Ver .2.4E
1



New Japan Radio NJM2795
PIN CONFIGURATION
1 14
78
No.
1 OUT1
2 RG1-
3 GND
4 VREF
5 V+
6 RG2+
7 OUT2
8 IN2+
9 RG2-
10 IN2-
11 NC
12 IN1-
13 RG1+
14 IN1+
2
Ver .2.4E



New Japan Radio NJM2795
NJM2795
ABSOLUTE MAXIMUM RANGES (Ta=25°C)
PARAMETER
SYMBOL
RANGE
Supply Voltage
Maximum Input Voltage
Power Dissipation
Operating Temperature
V+
VIM
PD
Topr
+22
0 to V+()
SSOP14 : 555*
NOTE: EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting
-40 to +85
Storage Temperature
Tstg
-40 to +150
UNIT
V
V
mW
°C
°C
() For the maximum input voltage less than 0 toV+
ELECTRICAL CHARACTERRISTIC (V+=9V, Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
MIN. TYP. MAX. UNIT
DC CHARACTERRISTIC
Operating Voltage
V+
4.3 9 20 V
Operating Current
ICC No Signal
- 7 10
Reference Voltage
VREF
4.0 4.5 5.0
AC CHARACTERRISTIC
(Non-inverting circuit, f=1kHz, Vin=100mVrms, Rg=0Ω, RG=10kΩ, RL=10kΩ unless otherwise specified)
Voltage Gain 1
GV1 RG=91kΩ
+4.0 +6.0 +8.0
Voltage Gain 2
GV2 RG=10kΩ
+18.0 +20.0 +22.0
Voltage Gain 3
GV3 RG=220Ω, Vin=2.5mVrms
+50.0 +52.0 +54.0
Channel Separation
CS VO=2Vrms, A-weighted
90 100 -
Channel Balance
BAL
- - 0.5
mA
V
dB
dB
dB
dB
dB
Roll-off High Frequency
Input Resistance
Output Resistance
Maximum Output Voltage 1
Maximum Output Voltage 2
Equivalent Input
Noise Voltage
Total Harmonic Distortion
Common Mode
Rejection Ratio (*)
Supply Voltage
Rejection Ratio
fRH -3dB
RIN
ROUT
VOM1
VOM2
THD=1%
Inverting, THD=1%
VNI Rg=600Ω, A-weighted, Gv=+20dB
THD
VO=1Vrms,
BW=400Hz to 30kHz
CMRR VICM=1Vrms
100
160
-
2
-
-
-
70
SVR f=100Hz , Vripple=100mVrms
55
-
200
200
2.5
2.5
2
0.005
80
65
- kHz
240 kΩ
-Ω
- Vrms
- Vrms
3 Vrms
0.05 %
- dB
- dB
Note (*):
CMRR GV 2
GVCM
, Where GV 2 is the Differential Mode Gain and
GVCM is the Common Mode Gain.
GVCM
20
*
log
VOCM
VICM
 , Where
VOCM is the Common Mode Output and
VICM is the Common Mode Input.
Ver .2.4E
3







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