LM359M National Semiconductor, LM359M Datasheet - Page 8

• Manufacturer Part Number: LM359M
• Description: IC AMP DUAL PROG CUR MODE 14SOIC
• Manufacturer: National Semiconductor

Specifications of LM359M

• Amplifier Type: General Purpose
• Number Of Circuits: 2
• Slew Rate: 60 V/µs
• Gain Bandwidth Product: 400MHz
• Current - Input Bias: 8µA
• Current - Supply: 18.5mA
• Current - Output / Channel: 40mA
• Voltage - Supply, Single/dual (±): 5 V ~ 22 V, ±2.5 V ~ 11 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Output Type: -
• -3db Bandwidth: -
• Voltage - Input Offset: -
• Other names: *LM359M

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Application Hints
The following figures illustrate typical biasing schemes for
AC amplifiers using the LM359:
FIGURE 4. Biasing a Non-Inverting AC Amplifier
FIGURE 3. Biasing an Inverting AC Amplifier
(Continued)
00778808
00778809
8
The nV
applications where a reduced input impedance can be ac-
commodated (see typical applications section).
OPERATING CURRENT PROGRAMMABILITY (I
The input bias current, slew rate, gain bandwidth product,
output drive capability and total device power consumption
of both amplifiers can be simultaneously controlled and op-
timized via the two programming pins I
I
The output set current (I
current sourced from pin 1 and establishes the class A
biasing current for the Darlington emitter follower output
stage. Using a single resistor from pin 1 to ground, as shown
in Figure 6, this current is equal to:
The output set current can be adjusted to optimize the
amount of current the output of the amplifier can sink to drive
load capacitance and for loads connected to V
mum output sinking current is approximately 10 times
I
device supply current if the amplifiers are not required to
drive small load impedances.
I
SET(OUT)
SET(OUT)
SET(IN)
FIGURE 6. Establishing the Output Set Current
BE
. This set current is best used to reduce the total
biasing configuration is most useful for low noise
FIGURE 5. nV
SET(OUT)
BE
) is equal to the amount of
Biasing
SET(OUT)
00778811
+
and I
. The maxi-
SET
00778810
SET(IN)
)
.