SLOS450A − NOVEMBER 2004 − REVISED APRIL 2008
D
D
D
D
D
D
D
D
Qualified for Automotive Applications
Small-Signal Bandwidth . . . 15 MHz Typ
Slew Rate . . . 20 V/µs Min
Bias Current . . . 250 nA Max
Supply-Voltage Range . . . ± 5 V to ± 20 V
Internal Frequency Compensation
Input and Output Overload Protection
Same Pin Assignments as
General-Purpose Operational Amplifiers
D PACKAGE
(TOP VIEW)
BAL /COMP1
IN−
IN+
VCC −
1
8
2
7
3
6
4
5
COMP2
VCC+
OUT
BAL /COMP3
description/ordering information
The LM218 is a precision, fast operational amplifier designed for applications requiring wide bandwidth and high
slew rate. It features a factor-of-ten increase in speed over general-purpose devices without sacrificing dc
performance.
This operational amplifier has internal unity-gain frequency compensation. This considerably simplifies its
application because no external components are necessary for operation. However, unlike most internally
compensated amplifiers, external frequency compensation may be added for optimum performance. For
inverting applications, feed-forward compensation boosts the slew rate to over 150 V/µs and almost double the
bandwidth. Overcompensation can be used with the amplifier for greater stability when maximum bandwidth
is not needed. Further, a single capacitor can be added to reduce the settling time for 0.1% error band to under
1 µs.
The high speed and fast settling time of this operational amplifier makes it useful in A/D converters, oscillators,
active filters, sample-and-hold circuits, and general-purpose amplifiers.
ORDERING INFORMATION{
TA
VIOmax
AT 25°C
PACKAGE‡
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
−40°C to 85°C
10 mV
SOIC (D)
Reel of 2500
LM218IDRQ1
LM218I
† For the most current package and ordering information, see the Package Option Addendum at the end of this
document, or see the TI web site at http://www.ti.com.
‡ Package drawings, thermal data, and symbolization are available at http://www.ti.com/packaging.
symbol
BAL/COMP1
COMP2
BAL/COMP3
IN+
IN−
1
8
5
3
+
6
2
OUT
−
Copyright 2008, Texas Instruments Incorporated
!" #!$% &"'
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&& *+' &! #", &" ""%+ %!&"
", %% #""'
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
SLOS450A − NOVEMBER 2004 − REVISED APRIL 2008
schematic
BAL/COMP3
COMP2
BAL/COMP1
VCC+
2 kΩ
150 kΩ
2 kΩ
5 kΩ
100 pF
20 kΩ
5 kΩ
20 kΩ
13 Ω
25 Ω
3.5 kΩ
6 pF
IN−
1 kΩ
OUT
33 Ω
1 kΩ
28 pF
5 kΩ
50 Ω
1.7 kΩ
4 kΩ
IN+
30 Ω
500 Ω
1.2 kΩ
5.6 kΩ
20 kΩ
110 Ω
POST OFFICE BOX 655303
30 Ω
VCC−
Component values shown are nominal.
2
1.2 kΩ
• DALLAS, TEXAS 75265
SLOS450A − NOVEMBER 2004 − REVISED APRIL 2008
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage: VCC+ (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 V
VCC− (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20 V
Input voltage, VI (either input, see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±15 V
Differential input current, VID (see Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±10 V
Duration of output short circuit (see Note 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unlimited
Operating virtual junction temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Package thermal impedance, θJA (see Notes 5 and 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126°C/W
Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltage values, unless otherwise noted, are with respect to the midpoint between VCC+ and VCC−.
2. The magnitude of the input voltage must never exceed the magnitude of the supply voltage or 15 V, whichever is less.
3. The inputs are shunted with two opposite-facing base-emitter diodes for overvoltage protection. Therefore, excessive current flows
if a different input voltage in excess of approximately 1 V is applied between the inputs, unless some limiting resistance is used.
4. The output can be shorted to ground for either power supply. For the LM218, the unlimited duration of the short circuit applies at
(or below) 85°C case temperature or 75°C free-air temperature.
5. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable
ambient temperautre is PD = (TJ(max) − TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.
6. The package thermal impedance is calculated in accordance with JESD 51-7.
electrical characteristics at specified free-air temperature (see Note 7)
TEST
CONDITIONS‡
PARAMETER
TA§
MIN
25°C
VIO
Input offset voltage
VO = 0
Full range
IIO
Input offset current
VO = 0
Full range
IIB
Input bias current
VO = 0
VICR
VOM
Common-mode input voltage range
Maximum peak output voltage swing
VCC ± = ± 15 V
VCC ± = ± 15 V,
Large-signal differential voltage
amplification
VCC ± = ± 15 V,
RL ≥ 2 kΩ
B1
ri
Unity-gain bandwidth
VCC ± = ± 15 V
CMRR
Common-mode rejection ratio
kSVR
Supply-voltage rejection ratio (∆VCC /∆VIO)
MAX
2
10
15
25°C
6
120
Full range
RL = 2 kΩ
VO = ± 10 V,
Input resistance
VIC = VICRmin
± 11.5
Full range
± 12
± 13
25°C
50
200
Full range
25
mV
nA
250
500
Full range
UNIT
50
100
25°C
AVD
TYP
nA
V
V
V/mV
25°C
15
MHz
25°C
3
MΩ
Full range
80
100
dB
Full range
70
80
dB
ICC
Supply current
VO = 0, No load
25°C
5
‡ All characteristics are measured under open-loop conditions with common-mode input voltage, unless otherwise specified.
§ Full range for LM218I is −40°C to 85°C.
NOTE 7: Unless otherwise noted, VCC = ± 5 V to ± 20 V. All typical values are at VCC ± = ± 15 V and TA = 25°C.
8
mA
operating characteristics, VCC± = ±15 V, TA = 25°C
PARAMETER
SR
Slew rate at unity gain
TEST CONDITIONS
∆VI = 10 V,
POST OFFICE BOX 655303
CL = 100 pF,
See Figure 1
• DALLAS, TEXAS 75265
MIN
TYP
20
70
MAX
UNIT
V/µs
3
SLOS450A − NOVEMBER 2004 − REVISED APRIL 2008
PARAMETER MEASUREMENT INFORMATION
5V
2 kΩ
Input
−5 V
2 kΩ
−
Input
Output
+
1 kΩ
100 pF
5V
90%
Output
∆VO
10%
−5 V
tt
SR +
TEST CIRCUIT
VOLTAGE WAVEFORMS
Figure 1. Slew Rate
4
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
DV
O
tt
PACKAGE OPTION ADDENDUM
www.ti.com
28-Aug-2012
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package
Drawing
Pins
Package Qty
2500
LM218IDRG4Q1
ACTIVE
SOIC
D
8
LM218IDRQ1
OBSOLETE
SOIC
D
8
Eco Plan
(2)
Green (RoHS
& no Sb/Br)
TBD
Lead/
Ball Finish
MSL Peak Temp
(3)
Samples
(Requires Login)
CU NIPDAU Level-1-260C-UNLIM
Call TI
Call TI
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
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continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
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In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 1
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