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NJM2748D

P1-P3P4-P6P7-P9P10-P12P13-P13
NJM2748/2748A
-1-
Ver.2007-05-24
Low Offset, Low Drift single JFET Input
Operational Amplifier
■GENERAL DESCRIPTION ■PACKAGE OUTLINE
The NJM2748/2748A is a Precision dual JFET input operational
amplifier which includes low input offset voltage: 0.7mV (typ) / 2.0mV
(max) and 6µV/°C typical offset drift.
The NJM2748A is guaranteed 20µV/°C maximum offset drift to
perform a 100% tested.
The NJM2748/2748A have the following features: low bias current of
50pA (typ), high slew rate of 13V/µs (typ).
These features are suitable for signal processing amplifiers of
instrumentation, measurement and industrial applications such as
sensor amplifier, current sensing and sample-and-hold circuit.
■FEATURES
Input Offset Voltage Drift NJM2748: V
IO
/T= 6µV/°C typ.
NJM2748A: V
IO
/T=20µV/°C max.
Input Offset Voltage 2.0mV max. @Ta=25°C ~ 85°C
3.0mV max. @Ta= -40°C
Input Bias Current I
B
= 50pA typ. 200pA max. @Ta=25°C
Slew Rate SR=13V/µs typ. @Ta=25°C
Operating Voltage Vopr= ±6.0V ~ ±16V
Voltage Gain Av=100dB typ.
Bipolar Technology
•
••
•Package Outline NJM2748D, NJM2748AD :DIP8
NJM2748M, NJM2748AM :DMP8
■PIN CONFIGURATION
NJM2748D/2748AD
NJM2748M/2748AM
8
7
6
5
1
2
3
4
BALANC
E
V
−
−INPUT
A
+INPUT
A
NC
BALANCE
V
+
OUTPUT
(Top View)
NJM2748/2748A
NJM2748/2748A
- 2 -
Ver.2007-05-24
■ABSOLUTE MAXIMUM RATING (Ta=25°C unless otherwise specified)
PARAMETER SYMBOL RATING UNIT
Supply Voltage V
+
/V
-
±
18
V
Common Mode Input Voltage V
ICM
±
15
(Note1) V
Differential Input Voltage V
ID
±
30
V
500 [ DIP8 ], 300 [ DMP8 ] mW
430 [ DMP8 ] (Note2) mW
Power Dissipation P
D
580 [ DMP8 ] (Note3) mW
Operating Temperature Range Topr -40 ~ +85
°C
Storage Temperature Range Tstg -50 ~ +125
°C
(Note1) For supply voltage less than ±18V, the maximum input voltage is equal to the supply voltage.
(Note2) Mounted on the EIA/JEDEC standard board (76.2×114.3×1.6mm, two layer, FR-4).
(Note3) Mounted on the EIA/JEDEC standard board (76.2×114.3×1.6mm, four layer, FR-4).
■RECOMMENDED OPERATING VOLTAGE (Ta=25°C)
PARAMETER SYMBOL RATING MIN. TYP. MAX. UNIT
Supply Voltage V
+
/V
-
±6 - ±16 V
■ELECTRONIC CHARACTERISTICS
•
••
•DC CHARACTERISTICS (V
+
/V
-
=±15V, Ta=-40 to +85°C (Note4) unless otherwise specified)
PARAMETER SYMBOL CONDITION MIN. TYP. MAX. UNIT
NJM2748A 6 20
Input Offset Voltage Drift V
IO
/T
NJM2748
(Note5, 6)
6
µV/°C
Input Offset Voltage1 V
IO1
R
S
=50, Ta=+85°C (Note6, 7) 0.6 2.0 mV
Input Offset Voltage2 V
IO2
R
S
=50, Ta=+25°C (Note6, 7) 0.7 2.0 mV
Input Offset Voltage3 V
IO3
R
S
=50, Ta=40°C (Note6, 7) 0.9 3.0 mV
Common Mode Rejection Ratio CMR V
ICM
=±10V (Note8) 76 92 dB
Supply Voltage Rejection Ratio SVR V
+
/V
=±6V ~ ±16V (Note7, 9) 80 100 dB
Input Common Mode Voltage Range 1 V
ICM1
CMR76dB (Note10) +10 +14.5 V
Input Common Mode Voltage Range 2 V
ICM2
CMR76dB (Note10) 11 10 V
Input Bias Current 1 I
B1
Ta=+25°C (Note7) 50 200 pA
Input Bias Current 2 I
B2
Ta=+85°C (Note7) 4 nA
Input Offset Current 1 I
IO1
Ta=+25°C (Note7) 25 100 pA
Input Offset Current 2 I
IO2
Ta=+85°C (Note7) 2 nA
Voltage Gain 1 Av1 R
L
=2k, Vo=±10V, Ta=+25°C 88 100 dB
Voltage Gain 2 Av2 R
L
=2k, Vo=±10V 82 100 dB
Maximum Output Voltage 1 V
OM1
R
L
=10k ±12 ±13.5 V
Maximum Output Voltage 2 V
OM2
R
L
=2k ±10 ±11.5 V
Supply Current Icc Voltage Follower, R
L
= (Note7) 2.0 3.4 mA
NJM2748/2748A
-
3
-
Ver.2007-05-24
(Note4) These devices are measured under three temperature conditions of Ta=40°C, +25°C, +85°C.
(Note5) Temperature coefficient is calculated by specified change in offset voltage. (Changes Ta=+25°C to 40°C and Ta=+25°C to +85°C)
NJM2748A is guaranteed maximum specification because these are 100% tested to operating temperature range.
NJM2748 is guaranteed only typical specification.
(Note6) Written by the absolute rate.
(Note7) Measured at V
ICM
=0V
(Note8) CMR is calculated by specified change in offset voltage. (V
ICM
=0V to +10V and V
ICM
=0V to 10V)
(Note9) SVR is calculated by specified change in offset voltage. (V
+
/V
=±6V to ±16V)
(Note10) V
ICM
is input common mode voltage when tested meets specified change in offset voltage is CMR76dB.
(A point of reference is offset voltage of V
ICM
=0V)
•
••
•AC CHARACTERISTICS (V
+
/V
=±15V, Ta=+25°C unless otherwise specified)
PARAMETER SYMBOL CONDITION MIN. TYP. MAX. UNIT
Gain Bandwidth Product GB f=10kHz 2.2 MHz
Unity Gain Frequency f
T
AV=+100, R
S
=100, RL=, CL=10pF 2 MHz
Phase Margin
M
AV=+100, R
S
=100, RL=, CL=10pF 55 deg
Input Noise Voltage1 V
NI1
f=1kHz, A
V
=+100, RS=100, RL= 20 nV/Hz
Input Noise Voltage2 V
NI2
RIAA, R
S
=2.2k, 30kHz, LPF 2.5 µVrms
Total Harmonic Distortion THD f=1kHz, A
V
=+10, R
S
=1k, R
L
=, V
O
=5Vrms 0.005 %
•
••
•TRANSIENT CHARACTERISTICS (V
+
/V
-
=±15V, Ta=+25°C unless otherwise specified)
PARAMETER SYMBOL CONDITION MIN. TYP. MAX. UNIT
Positive Slew Rate +SR A
V
=+1, V
IN
=2Vpp, R
L
=10k, C
L
=10pF 14 V/µs
Negative Slew Rate -SR A
V
=+1, V
IN
=2Vpp, R
L
=10k, C
L
=10pF 12 V/µs
P1-P3P4-P6P7-P9P10-P12P13-P13

NJM2748D

Mfr. #:
Buy NJM2748D
Manufacturer:
NJR (New Japan Radio)
Description:
Precision Amplifiers Low Offset Low Drift JFET 0.7mV 2.0mV
Lifecycle:
New from this manufacturer.
Delivery:
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