Operational Amplifier. LH740AC Datasheet

LH740AC Amplifier. Datasheet pdf. Equivalent


Part LH740AC
Description FET Input Operational Amplifier
Feature ~National . D Semiconductor Amplifiers LH740AlLH740AC FET Input Operational Amplifier General Des.
Manufacture National Semiconductor
Datasheet
Download LH740AC Datasheet


~National . D Semiconductor Amplifiers LH740AlLH740AC FET LH740AC Datasheet
Recommendation Recommendation Datasheet LH740AC Datasheet




LH740AC
~National .
D Semiconductor
Amplifiers
LH740AlLH740AC FET Input Operational
Amplifier
General Description
The LH740A/LH740AC is a FET input, general
purpose operational amplifier with high input
impedance, closely matched input characteristics;
and good slew rates. Input offset voltage is tYpi·
cally 10.0 mV at 25°C, while input bias current is
less than 100 pA at 25° G. Offset current is typi·
cally less than 40 pA at 25°C. Other important
design features include:
• Internal 6 d B/octave frequency compensation
• Unity gain slew rate in excess of 6 VliJs
• Unity gain bandwidth of 1 MHz
• Input offset is adjustable with a single 10k pot
• Pin compatible with LM741, LM709, LM 101 A.
• Excellent offset current match over tempera·
ture, typically 100 pA
Connection Diagram
• Output is continuously short·circuit proof
• Excellent open loop gain, typically in excess of
100 dB
• Guaranteed over the full mi Iitary temperature
range
The LH740A/LH740AC is intended to fulfill a
wide variety of applications requiring extremely
low bias currents such as integrators. sample and
hold amplifiers. and general purpose operational
amplifier applications.
The LH740A is specified for operation over the
-55"C to +125°C military temperature range. The
LH740AC is specified for operation over the O°C
to +85"C temperature range.
Typical Applications
Integrator
TO'YIIW
Order Number LH740AH or LH740ACH
See ·Package H08A
Transient Response
r--- - -- ---- ----------------;HMI. i
"lSI' I
I
I
I
I
r---------1~......- - - 'ou,
R,
.,.0--_..
1-76
Offset Null
Y'
INPUT
OUTPUT
v-



LH740AC
Absolute Maximum Ratings
Supply Voltage
Maximum Power Di55ipation
Differential Input Voltage
Input Voltage
Short Circuit Duration
Operating Temperature Range
LH740A
LH740AC
Storage Temperature Range
Lead Temperature (soldering, 105«.1
±22V
500mW
±5V
±15V
Continuous
-55°C to +125°C
O·C to +85°C
-65°C to +150°C
300°C
Electrical Characteristics = =(Note 1) (Vs ±15V, TA 25°C unless otherwise noted)
PARAMETER
CONDITIONS
MIN
LH740A
TVP
MAX
LH740AC
MIN TVP MAX
UNITS
Input Off..t VoIU!l"
Input Off..t Current
Input Curren. (either inpul)
Input Resistance
Large Signal Voltage Gain
Output Resistance
AS::; 100 k!l
TJ =25°C (Note 2)
TJ =2SoC (Note 2)
TJ = 2SoC (Note 2)
AL ::! 2 kll, VOUT °110V
10 15
40 100
100 200
1.000.000
50.000 100.000
75
50.000
10
60
100
1,000.000
100.000
75
20
ISO
500
mV
pA
pA
Mfl
VIV
n
Output Short-Circuit Current
20 20 mA
Common Mode Rejection Ra,io
80 BO
dB
SupplV Voltage Aeje<:tion Ratio
80 BO
dB
Supply Current
3.0 4.0
3.0 4.0
mA
Slew Rate
Unity Gain Bandwidth
6.0 6.0 V/p.s
1.0 1.0 MHz
Tr~nsient Response (UnIty Gain)
Risetime
Overshoot'
C L ::; loopF. AL • 2kl!. V'N' l00mV
110
10 20
300 ns
10 %
(These specifications apply for -55"C S TAS. 125 C for the LH740A dnd O'C S TA S 85~C for the LH740AC unless otherwise noted.)
Input Voltage Aange
i12 112
V
Common Mode Rejection Ratio
BO 80
dB
Supply Voltage Rejection Ratio
80 80
dB
Large S,gnil Voltage Gain
40,000
40,000
VIV
Output Vollago Swing
AL ~ 10 k!!
AL ~2k!!
! 12 114
110 !13
112 i14
ilO 113
V
V
Input Offset Vollage
15 20
30 mV
Input Offset Current
100 500
60 500
pA
Input Current (ellher Input)
Offset Voltage Oro"
As ~ lOOK
2.5 4.0
5.0
1.1 5.0
5.0
nA
iJvtc
Note 1: For supply voltages less than ±10V, the absolute maximum input voltage is equal to the
supply voltage.
Note 2: Due to high speed automatic testing, these parameters are correlated to junction temperature.
:rx-
......
-~
0
l>
:rx-
......
~
0
l>
C')
Typical Performance Characteristics
Maximum Power
Dissipation
100
.700
.! 100
0 100
~
~ 400
;c; 300
loa
f
100
a
a
"1\
1\
\
50 100 150
TEMPERATURE (OCI
200
Open Loop Frequency
Response
100 10k 1M
fREQUENCY (Hz,
100M
1-77







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