LM2900, LM3900
QUADRUPLE NORTON OPERATIONAL AMPLIFIERS
SLOS059 – JULY 1979 – REVISED SEPTEMBER 1990
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D
Wide Range of Supply Voltages, Single or
Dual Supplies
D
Wide Bandwidth
D
Large Output Voltage Swing
D
Output Short-Circuit Protection
D
Internal Frequency Compensation
D
Low Input Bias Current
D
Designed to Be Interchangeable With
National Semiconductor LM2900 and
LM3900, Respectively
description
These devices consist of four independent, highgain frequency-compensated Norton operational
amplifiers that were designed specifically to
operate from a single supply over a wide range of
voltages. Operation from split supplies is also
possible. The low supply current drain is
essentially independent of the magnitude of the
supply voltage. These devices provide wide bandwidth and large output voltage swing.
The LM2900 is characterized for operation from
–40°C to 85°C, and the LM3900 is characterized
for operation from 0°C to 70°C.
schematic (each amplifier)
Constant
Current
Generator
V
CC
200 µA
OUT
1.3 mA
IN +
IN –
Copyright 1990, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
+
–
IN+
IN–
OUT
1
2
3
4
5
6
7
14
13
12
11
10
9
8
1IN+
2IN+
2IN–
2OUT
1OUT
1IN–
GND
V
CC
3IN+
4IN+
4IN–
4OUT
3OUT
3IN–
N PACKAGE
(TOP VIEW)
symbol (each amplifier)
LM2900, LM3900
QUADRUPLE NORTON OPERATIONAL AMPLIFIERS
SLOS059 – JULY 1979 – REVISED SEPTEMBER 1990
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
LM2900 LM3900 UNIT
Supply voltage, VCC (see Note 1) 36 36 V
Input current 20 20 mA
Duration of output short circuit (one amplifier) to ground at (or below) 25°C free-air temperature
(see Note 2)
unlimited unlimited
Continuous total dissipation See Dissipation Rating Table
Operating free-air temperature range –40 to 85 0 to 70 °C
Storage temperature range –65 to 150 –65 to 150 °C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260 260 °C
NOTES: 1. All voltage values, except differential voltages, are with respect to the network ground terminal.
2. Short circuits from outputs to VCC can cause excessive heating and eventual destruction.
DISSIPATION RATING TABLE
PACKAGE
TA ≤ 25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
TA = 85°C
POWER RATING
N 1150 mW 9.2 mW/°C 736 mW 598 mW
recommended operating conditions
LM2900 LM3900
Supply voltage, VCC (single supply) 4.5 32 4.5 32 V
Supply voltage, V
CC+
(dual supply) 2.2 16 2.2 16 V
Supply voltage, V
CC–
(dual supply) –2.2 –16 –2.2 –16 V
Input current (see Note 3) –1 –1 mA
Operating free-air temperature, T
A
–40 85 0 70 °C
NOTE 3: Clamp transistors are included that prevent the input voltages from swinging below ground more than approximately –0.3 V. The
negative input currents that may result from large signal overdrive with capacitive input coupling must be limited externally to values
of approximately – 1 mA. Negative input currents in excess of –4 mA causes the output voltage to drop to a low voltage. These
values apply for any one of the input terminals. If more than one of the input terminals are simultaneously driven negative, maximum
currents are reduced. Common-mode current biasing can be used to prevent negative input voltages.
LM2900, LM3900
QUADRUPLE NORTON OPERATIONAL AMPLIFIERS
SLOS059 – JULY 1979 – REVISED SEPTEMBER 1990
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics, VCC = 15 V, TA = 25°C (unless otherwise noted)
IIBInput bias current (inverting input)
A
VD
Large-signal differential
voltage amplification
VO = 10 V,
f = 100 Hz
RL = 10 kΩ,
1.2 2.8 1.2 2.8 V/mV
r
i
Input resistance (inverting input) 1 1 MΩ
r
o
Output resistance 8 8 kΩ
B
1
Unity-gain bandwidth (inverting
input)
2.5 2.5 MHz
k
SVR
Supply voltage rejection ratio
(
∆V
CC
/∆V
IO)
70 70 dB
RL = 2 kΩ 13.5 13.5
V
OH
High-level output voltage
II– = 0
VCC = 30 V,
No load
29.5 29.5
V
V
OL
Low-level output voltage
II+ = 0,
RL = 2 kΩ
II– = 10 µA,
0.09 0.2 0.09 0.2 V
I
OS
Short-circuit output current
(output internally high)
II+ = 0,
VO = 0
II– = 0,
–6 –18 –6 –10 mA
Pulldown current 0.5 1.3 0.5 1.3 mA
I
OL
Low-level output current
‡
II– = 5 µA VOL = 1 V 5 5 mA
I
CC
Supply current (four amplifiers) No load 6.2 10 6.2 10 mA
†
All characteristics are measured under open-loop conditions with zero common-mode voltage unless otherwise specified. Full range for TA is
–40°C to 85°C for LM2900 and 0°C to 70°C for LM3900.
‡
The output current-sink capability can be increased for large-signal conditions by overdriving the inverting input.
NOTE 4: These parameters are measured with the output balanced midway between VCC and GND.
operating characteristics, V
CC±
= ±15 V, TA = 25°C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT