Datasheet

Resistor Biasing
Set Current Setting Resistor to V
−
I
SET
V
S
0.1 µA 0.5 µA 1.0 µA 5 µA 10 µA
±
1.5V 25.6 MΩ 5.04 MΩ 2.5 MΩ 492 kΩ 244 kΩ
±
3.0V 55.6 MΩ 11.0 MΩ 5.5 MΩ 1.09 MΩ 544 kΩ
±
6.0V 116 MΩ 23.0 MΩ 11.5 MΩ 2.29 MΩ 1.14 MΩ
±
9.0V 176 MΩ 35.0 MΩ 17.5 MΩ 3.49 MΩ 1.74 MΩ
±
12.0V 236 MΩ 47.0 MΩ 23.5 MΩ 4.69 MΩ 2.34 MΩ
±
15.0V 296 MΩ 59.0 MΩ 29.5 MΩ 5.89 MΩ 2.94 MΩ
Electrical Characteristics
LM4250 (−55˚C ≤ T
A
≤ +125˚C unless otherwise specified.) T
A
=T
J
V
S
=
±
1.5V
Parameter Conditions I
SET
= 1 µA I
SET
=10µA
Min Max Min Max
V
OS
R
S
≤ 100 kΩ,T
A
= 25˚C 3 mV 5 mV
I
OS
T
A
= 25˚C 3 nA 10 nA
I
bias
T
A
= 25˚C 7.5 nA 50 nA
Large Signal Voltage R
L
= 100 kΩ,T
A
= 25˚C 40k
Gain V
O
=
±
0.6V, R
L
=10kΩ 50k
Supply Current T
A
= 25˚C 7.5 µA 80 µA
Power Consumption T
A
= 25˚C 23 µW 240 µW
V
OS
R
S
≤ 100 kΩ 4mV 6mV
I
OS
T
A
= +125˚C 5 nA 10 nA
T
A
= −55˚C 3 nA 10 nA
I
bias
7.5 nA 50 nA
Input Voltage Range
±
0.6V
±
0.6V
Large Signal Voltage Gain V
O
=
±
0.5V, R
L
= 100 kΩ 30k
R
L
=10kΩ 30k
Output Voltage Swing R
L
= 100 kΩ
±
0.6V
R
L
=10kΩ
±
0.6V
Common Mode Rejection Ratio R
S
≤ 10 kΩ 70 dB 70 dB
Supply Voltage Rejection Ratio R
S
≤ 10 kΩ 76 dB 76 dB
Supply Current 8µA 90µA
V
S
=
±
15V
Parameter Conditions I
SET
= 1 µA I
SET
=10µA
Min Max Min Max
V
OS
R
S
≤ 100 kΩ,T
A
= 25˚C 3 mV 5 mV
I
OS
T
A
= 25˚C 3 nA 10 nA
I
bias
T
A
= 25˚C 7.5 nA 50 nA
Large Signal Voltage R
L
= 100 kΩ,T
A
= 25˚C 100k
Gain V
O
=
±
10V, R
L
=10kΩ 100k
Supply Current T
A
= 25˚C 10 µA 90 µA
Power Consumption T
A
= 25˚C 300 µW 2.7 mW
V
OS
R
S
≤ 100 kΩ 4mV 6mV
I
OS
T
A
= +125˚C 25 nA 25 nA
T
A
= −55˚C 3 nA 10 nA
I
bias
7.5 nA 50 nA
Input Voltage Range
±
13.5V
±
13.5V
LM4250
www.national.com3