LM359 Dual, High Speed, Programmable, Current Mode (Norton) Amplifiers
October 1998
LM359
Dual, High Speed, Programmable, Current Mode (Norton)
Amplifiers
General Description
The LM359 consists of two current differencing (Norton) in-
put amplifiers. Design emphasis has been placed on obtain-
ing high frequency performance and providing user program-
mable amplifier operating characteristics. Each amplifier is
broadbanded to provide a high gain bandwidth product, fast
slew rate and stable operation for an inverting closed loop
gain of 10 or greater. Pins for additional external frequency
compensation are provided. The amplifiers are designed to
operate from a single supply and can accommodate input
common-mode voltages greater than the supply.
Features
n
User programmable gain bandwidth product, slew rate,
input bias current, output stage biasing current and total
device power dissipation
n
High gain bandwidth product (I
SET
= 0.5 mA)
400 MHz for A
V
= 10 to 100
30 MHz for A
V
= 1
n
High slew rate (I
SET
= 0.5 mA)
60 V/µs for A
V
= 10 to 100
30 V/µs for A
V
= 1
n
Current differencing inputs allow high common-mode
input voltages
n
Operates from a single 5V to 22V supply
n
Large inverting amplifier output swing, 2 mV to V
CC
−
2V
n
Low spot noise,
for f
>
1 kHz
Applications
n
n
n
n
n
General purpose video amplifiers
High frequency, high Q active filters
Photo-diode amplifiers
Wide frequency range waveform generation circuits
All LM3900 AC applications work to much higher
frequencies
Typical Application
Connection Diagram
Dual-In-Line Package
DS007788-2
DS007788-1
•
•
•
•
A
V
= 20 dB
−3 dB bandwidth = 2.5 Hz to 25 MHz
Differential phase error
<
1˚ at 3.58 MHz
Differential gain error
<
0.5% at 3.58 MHz
Top View
Order Number LM359J, LM359M or LM359N
See NS Package Number J14A, M14A or N14A
© 1999 National Semiconductor Corporation
DS007788
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Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
22 V
DC
or
±
11 V
DC
Power Dissipation (Note 2)
J Package
1W
N Package
750 mW
Maximum T
J
J Package
+150˚C
N Package
+125˚C
Thermal Resistance
J Package
θ
jA
147˚C/W still air
110˚C/W with 400 linear feet/min air flow
N Package
θ
jA
100˚C/W still air
75˚C/W with 400 linear feet/min air flow
Input Currents, I
IN
(+) or I
IN
(−)
10 mA
DC
Set Currents, I
SET(IN)
or I
SET(OUT)
2 mA
DC
Operating Temperature Range
LM359
0˚C to +70˚C
Storage Temperature Range
−65˚C to +150˚C
Lead Temperature
(Soldering, 10 sec.)
260˚C
Soldering Information
Dual-In-Line Package
Soldering (10 sec.)
260˚C
Small Outline Package
Vapor Phase (60 sec.)
215˚C
Infrared (15 sec.)
220˚C
See AN-450 “Surface Mounting Methods and Their Effect
on Product Reliability” for other methods of soldering
surface mount devices.
ESD rating to be determined.
Electrical Characteristics
I
SET(IN)
= I
SET(OUT)
= 0.5 mA, V
supply
= 12V, T
A
= 25˚C unless otherwise noted
Parameter
Open Loop Voltage
Gain
Bandwidth
Unity Gain
Gain Bandwidth Product
Gain of 10 to 100
Slew Rate
Unity Gain
Gain of 10 to 100
Amplifier to Amplifier
Coupling
Mirror Gain
(Note 3)
at 2 mA I
IN
(+), I
SET
= 5 µA, T
A
= 25˚C
at 0.2 mA I
IN
(+), I
SET
= 5 µA
Over Temp.
at 20 µA I
IN
(+), I
SET
= 5 µA
Over Temp.
∆Mirror
Gain
(Note 3)
Input Bias Current
Input Resistance (βre)
Output Resistance
Output Voltage Swing
V
OUT
High
V
OUT
Low
at 20 µA to 0.2 mA I
IN
(+)
Over Temp, I
SET
= 5 µA
Inverting Input, T
A
= 25˚C
Over Temp.
Inverting Input
I
OUT
= 15 mA rms, f = 1 MHz
R
L
= 600Ω
I
IN
(−) and I
IN
(+) Grounded
I
IN
(−) = 100 µA, I
IN
(+) = 0
9.5
2.5
3.5
10.3
2
50
3
8
5
15
30
%
µA
µA
kΩ
Ω
V
mV
0.9
1.0
1.1
µA/µA
0.9
0.9
1.0
1.0
1.1
1.1
µA/µA
µA/µA
R
IN
= 1 kΩ, C
comp
= 10 pF
R
IN
<
200Ω
f = 100 Hz to 100 kHz, R
L
= 1k
30
60
−80
V/µs
V/µs
dB
R
IN
= 50Ω to 200Ω
200
400
MHz
Conditions
Min
V
supply
= 12V, R
L
= 1k, f = 100 Hz
T
A
= 125˚C
R
IN
= 1 kΩ, C
comp
= 10 pF
62
15
LM359
Typ
72
68
30
Max
dB
dB
MHz
Units
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2
Electrical Characteristics
Parameter
Output Currents
Source
Sink (Linear Region)
Sink (Overdriven)
Supply Current
Power Supply Rejection
(Note 4)
(Continued)
I
SET(IN)
= I
SET(OUT)
= 0.5 mA, V
supply
= 12V, T
A
= 25˚C unless otherwise noted
Conditions
Min
I
IN
(−) and I
IN
(+) Grounded, R
L
= 100Ω
V
comp
−0.5V = V
OUT
= 1V, I
IN
(+) = 0
I
IN
(−) = 100 µA, I
IN
(+) = 0,
V
OUT
Force = 1V
Non-Inverting Input
Grounded, R
L
=
∞
f = 120 Hz, I
IN
(+) Grounded
40
18.5
50
22
mA
dB
16
1.5
LM359
Typ
40
4.7
3
Max
mA
mA
mA
Units
Note 1:
“Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits.
Note 2:
See Maximum Power Dissipation graph.
Note 3:
Mirror gain is the current gain of the current mirror which is used as the non-inverting input.
∆Mirror
Gain is the % change in A
I
for two different mirror currents at any given temperature.
Note 4:
See Supply Rejection graphs.
3
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Schematic Diagram
DS007788-3
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4
Typical Performance Characteristics
Open Loop Gain
Open Loop Gain
Open Loop Gain
DS007788-39
DS007788-40
DS007788-41
Note:
Shaded area refers to LM359
Gain Bandwidth Product
Slew Rate
Gain and Phase
Feedback Gain = − 100
DS007788-42
DS007788-43
DS007788-44
Inverting Input Bias Current
Inverting Input Bias Current
Mirror Gain
DS007788-45
DS007788-46
DS007788-47
Note:
Shaded area refers to LM359
5
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