996

NTE996
Linear Integrated Circuit
Operational Transconductance Amplifier
Description:
The NTE996 is a programmable transconductance block intended to fulfill a wide variety of variable
gain applications. This device has differential inputs and high impedance push–pull outputs. The
NTE996 has high input impedance and its transconductance (gm) is directly proportional to the amplifier bias current (IABC).
High slew rate together with programmable gain make the NTE996 an ideal choice for variable gain
applications such as sample and hold, multiplexing, filtering, and multiplying,
Features:
D Slew Rate (Unity Gain Compensated): 50V/µs
D Fully Adjustable Gain: 0 to gm • RL Limit
D Extended gm Linearity: 3 Decades
D Flexible Supply Voltage Range: ±2V to ±18V
D Adjustable Power Consumption
Absolute Maximum Ratings:
DC Supply Voltage, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18V
Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250mW
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5V
Amplifier Bias Current, IABC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2mA
DC Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +VS to –VS
Output Short Circuit Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Indefinite
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Lead Temperature (During Soldering, 10sec), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +260°C
Electrical Characteristics: (VS = ±15V, IABC = 500µA, TA = +25°C unless otherwise specified)
Test Conditions
Min
Typ
Max
Unit
–
0.4
5.0
mV
TA = 0° to +70°C, IABC = 5µA
–
0.3
–
5µA ≤ IABC ≤ 500µA
–
0.1
–
mV
Input Offset Current
–
0.1
–
µA
Input Bias Current
–
0.4
5.0
µA
–
1.0
7.0
Parameter
Input Offset Voltage
Input Offset Voltage Charge
TA = 0° to +70°C
Forward Transconductance (gm)
6700
TA = 0° to +70°C
Peak Output Current
Peak Output Voltage
Positive
Negative
9600 13000 µmho
5400
–
–
–
5
–
RL = 0
350
500
650
RL = 0, TA = 0° to +70°C
300
–
–
RL = 0, IABC = 5µA
V
RL = ∞, 5µA ≤ IABC ≤ 500µA
+12.0 +14.2
–
RL = ∞, 5µA ≤ IABC ≤ 500µA
–12.0 –14.4
–
Amplifier Supply Current
µA
–
1.1
–
∆VOFFSET/∆V+
–
20
150
∆VOFFSET/∆V–
–
20
150
Common Mode Rejection Ratio
80
110
–
dB
Common Mode Range
±12
±14
–
V
Input Resistance
10
26
–
kΩ
Input Offset Voltage Sensitivity
Positive
Negative
mA
µV/V
Magnitude of Leakage Current
IABC = 0
–
0.2
100
nA
Differential Input Current
IABC = 0, Input = ±4V
–
0.02
100
nA
–
2.0
–
MHz
–
50
–
V/µs
Open Loop Bandwidth
Slew Rate
Unity Gain Compensated
Pin Connection Diagram
N.C.
1
8
N.C.
Inverting Input
2
7
V (+)
Non–Inverting Input
3
6
Output
V (–)
4
5
Amplifier Bias Input
8
5
.256 (6.52) Max
1
4
.393 (10.0)
Max
.300 (7.62)
.150
(3.81)
.100 (2.54)
.070 (1.77) Min
.300 (7.62)
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