LM146MD8 [ROCHESTER]
Operational Amplifier, 4 Func, 6000uV Offset-Max, BIPolar, DIE;
| 型号： | LM146MD8 |
| 厂家： | 
Rochester Electronics |
| 描述： | Operational Amplifier, 4 Func, 6000uV Offset-Max, BIPolar, DIE 放大器 |
| 文件： | 总19页 (文件大小：907K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
REI Datasheet
LM146, LM346
Programmable Quad Operational Amplifiers
The LM146 series of quad op amps consists of four independent, high gain, internally compensated,
low power, programmable amplifiers. Two external resistors (RSET) allow the user to program the gain
bandwidth product, slew rate, supply current, input bias current, input offset current, and input noise.
For example, the user can trade-off supply current for bandwidth or optimize noise figure for a given
source resistance. In a similar way, other amplifier characteristics can be tailored to the application.
Except for the two programming pins at the end of the package, the LM146 pin-out is the same as
the LM124 and the LM148.
Quality Overview
Rochester Electronics
Manufactured Components
•
•
•
ISO-9001
AS9120 certification
Qualified Manufacturers List (QML) MIL-PRF-38535
Rochester branded components are
manufactured using either die/wafers
purchased from the original suppliers
or Rochester wafers recreated from the
original IP. All recreations are done with
the approval of the OCM.
•
•
Class Q Military
Class V Space Level
•
Qualified Suppliers List of Distributors (QSLD)
•
Rochester is a critical supplier to DLA and
meets all industry and DLA standards.
Parts are tested using original factory
test programs or Rochester developed
test solutions to guarantee product
meets or exceeds the OCM data sheet.
RochesterElectronics, LLCiscommittedtosupplying
products that satisfy customer expectations for
quality and are equal to those originally supplied by
industry manufacturers.
The original manufacturer’s datasheet accompanying this document reflects the performance
and specifications of the Rochester manufactured version of this device. Rochester Electronics
guarantees the performance of its semiconductor products to the original OEM specifications.
‘Typical’ values are for reference purposes only. Certain minimum or maximum ratings may be
based on product characterization, design, simulation, or sample testing.
© 2013 Rochester Electronics, LLC. All Rights Reserved 07112013
To learn more, please visit www.rocelec.com
August 2000
LM146/LM346
Programmable Quad Operational Amplifiers
General Description
Features
The LM146 series of quad op amps consists of four inde-
pendent, high gain, internally compensated, low power, pro-
grammable amplifiers. Two external resistors (RSET) allow
the user to program the gain bandwidth product, slew rate,
supply current, input bias current, input offset current and
input noise. For example, the user can trade-off supply
current for bandwidth or optimize noise figure for a given
source resistance. In a similar way, other amplifier charac-
teristics can be tailored to the application. Except for the two
programming pins at the end of the package, the LM146
pin-out is the same as the LM124 and LM148.
(ISET=10 µA)
n Programmable electrical characteristics
n Battery-powered operation
n Low supply current: 350 µA/amplifier
n Guaranteed gain bandwidth product: 0.8 MHz min
n Large DC voltage gain: 120 dB
n Low noise voltage: 28
n Wide power supply range:
n Class AB output stage–no crossover distortion
n Ideal pin out for Biquad active filters
1.5V to 22V
n Input bias currents are temperature compensated
PROGRAMMING EQUATIONS
Connection Diagram
Total Supply Current = 1.4 mA (ISET/10 µA)
Gain Bandwidth Product = 1 MHz (ISET/10 µA)
Slew Rate = 0.4V/µs (ISET/10 µA)
Dual-In-Line Package
Input Bias Current . 50 nA (ISET/10 µA)
ISET = Current into pin 8, pin 9 (see schematic-diagram)
00565401
Top View
Order Number LM146J, LM146J/883,
LM346M,LM346MX or LM346N
See NS Package Number
J16A, M16A or N16A
Capacitorless Active Filters (Basic Circuit)
00565416
© 2004 National Semiconductor Corporation
DS005654
www.national.com
Absolute Maximum Ratings (Notes 1,
5)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
LM146
22V
LM346
18V
Supply Voltage
Differential Input Voltage (Note 1)
CM Input Voltage (Note 1)
30V
30V
15V
15V
Power Dissipation (Note 2)
900 mW
Continuous
−55˚C to +125˚C
150˚C
500 mW
Continuous
0˚C to +70˚C
100˚C
Output Short-Circuit Duration (Note 3)
Operating Temperature Range
Maximum Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10 seconds)
Thermal Resistance (θjA), (Note 2)
−65˚C to +150˚C
260˚C
−65˚C to +150˚C
260˚C
Cavity DIP (J)
Pd
900 mW
100˚C/W
900 mW
100˚C/W
115˚C/W
500 mW
90˚C/W
θjA
Small Outline (M) θjA
Molded DIP (N) Pd
θjA
Soldering Information
Dual-In-Line Package
Soldering (10 seconds)
Small Outline Package
Vapor Phase (60 seconds)
Infrared (15 seconds)
+260˚C
+260˚C
+215˚C
+220˚C
+215˚C
+220˚C
See AN-450 “Surface Mounting Methods and Their Effect on
Product Reliability” for other methods of soldering surface
mount devices.
ESD rating is to be determined.
DC Electrical Characteristics
(VS= 15V, ISET=10 µA), (Note 4)
Parameter
Conditions
LM146
LM346
Typ
0.5
Units
Min
Typ
0.5
2
Max
5
Min
Max
6
Input Offset Voltage
V
V
V
CM=0V, RS≤50Ω, TA=25˚C
mV
nA
Input Offset Current
CM=0V, TA=25˚C
20
2
100
250
2.5
Input Bias Current
CM=0V, TA=25˚C
50
100
2.0
50
nA
Supply Current (4 Op Amps)
Large Signal Voltage Gain
TA=25˚C
1.4
1000
1.4
mA
RL=10 kΩ, ∆VOUT= 10V,
TA=25˚C
100
50
1000
V/mV
Input CM Range
TA=25˚C
13.5
80
14
100
100
13.5
70
14
100
100
V
CM Rejection Ratio
RS≤10 kΩ, TA=25˚C
RS≤10 kΩ, TA=25˚C,
dB
dB
Power Supply Rejection Ratio
80
74
VS
=
5 to 15V
Output Voltage Swing
Short-Circuit
RL≥10 kΩ, TA=25˚C
TA=25˚C
12
5
14
20
12
5
14
20
V
35
35
mA
Gain Bandwidth Product
Phase Margin
TA=25˚C
0.8
1.2
60
0.5
1.2
60
MHz
Deg
V/µs
TA=25˚C
Slew Rate
TA=25˚C
0.4
28
0.4
28
Input Noise Voltage
Channel Separation
f=1 kHz, TA=25˚C
RL=10 kΩ, ∆VOUT=0V to
120
120
dB
www.national.com
2
DC Electrical Characteristics (Continued)
(VS= 15V, ISET=10 µA), (Note 4)
Parameter
Conditions
LM146
Typ
LM346
Typ
Units
Min
Max
Min
Max
12V, TA=25˚C
Input Resistance
TA=25˚C
TA=25˚C
1.0
2.0
0.5
2
1.0
2.0
0.5
2
MΩ
pF
Input Capacitance
Input Offset Voltage
Input Offset Current
V
V
V
CM=0V, RS≤50Ω
CM=0V
6
7.5
100
250
2.5
mV
nA
25
Input Bias Current
CM=0V
50
100
2.2
50
nA
Supply Current (4 Op Amps)
Large Signal Voltage Gain
Input CM Range
1.7
1000
14
1.7
1000
14
mA
V/mV
V
RL=10 kΩ, ∆VOUT= 10V
50
25
13.5
70
13.5
70
CM Rejection Ratio
RS≤50Ω
RS≤50Ω,
100
100
100
100
dB
Power Supply Rejection Ratio
76
74
dB
VS
=
5V to 15V
Output Voltage Swing
RL≥10 kΩ
12
14
12
14
V
DC Electrical Characteristic
(VS= 15V, ISET=10 µA)
Parameter
Conditions
LM146
LM346
Typ
Units
Min
Typ
Max
Min
Max
Input Offset Voltage
V
CM=0V, RS≤50Ω,
TA=25˚C
CM=0V, TA=25˚C
0.5
5
0.5
7
mV
Input Bias Current
V
7.5
140
100
20
7.5
140
100
100
300
nA
µA
Supply Current (4 Op Amps)
Gain Bandwidth Product
TA=25˚C
TA=25˚C
250
80
50
kHz
DC Electrical Characteristics
(VS= 1.5V, ISET=10 µA)
Parameter
Conditions
LM146
LM346
Typ
Units
Min
Typ
Max
Min
Max
Input Offset Voltage
VCM=0V, RS≤50Ω,
0.5
5
0.5
7
mV
TA=25˚C
Input CM Range
TA=25˚C
0.7
0.6
0.7
0.6
V
dB
V
CM Rejection Ratio
Output Voltage Swing
RS≤50Ω, TA=25˚C
RL≥10 kΩ, TA=25˚C
80
80
Note 1: For supply voltages less than 15V, the absolute maximum input voltage is equal to the supply voltage.
Note 2: The maximum power dissipation for these devices must be derated at elevated temperatures and is dictated by T
, θ , and the ambient temperature,
jMAX jA
T . The maximum available power dissipation at any temperature is P =(T
- T )/θ or the 25˚C P
, whichever is less.
A
d
jMAX
A
jA
dMAX
Note 3: Any of the amplifier outputs can be shorted to ground indefinitely; however, more than one should not be simultaneously shorted as the maximum junction
temperature will be exceeded.
Note 4: These specifications apply over the absolute maximum operating temperature range unless otherwise noted.
Note 5: Refer to RETS146X for LM146J military specifications.
3
www.national.com
Typical Performance Characteristics
Input Bias Current vs ISET
Supply Current vs ISET
00565444
00565445
Open Loop Voltage Gain
vs ISET
Slew Rate vs ISET
00565447
00565446
Gain Bandwidth Product
vs ISET
Phase Margin vs ISET
00565448
00565449
www.national.com
4
Typical Performance Characteristics (Continued)
Input Offset Voltage
vs ISET
Common-Mode Rejection
Ratio vs ISET
00565451
00565450
Power Supply Rejection
Ratio vs ISET
Open Voltage Swing vs
Supply Voltage
00565452
00565453
Input Bias Current vs
Input Common-Mode
Voltage
Input Voltage Range vs
Supply Voltage
00565455
00565454
5
www.national.com
Typical Performance Characteristics (Continued)
Input Bias Current vs
Temperature
Input Offset Current vs
Temperature
00565457
00565456
Supply Current vs
Temperature
Open Loop Voltage Gain
vs Temperature
00565458
00565420
Gain Bandwidth Product
vs Temperature
Slew Rate vs
Temperature
00565422
00565421
www.national.com
6
Typical Performance Characteristics (Continued)
Input Noise Voltage vs
Frequency
Input Noise Current vs
Frequency
00565424
00565423
Power Supply Rejection
Ratio vs Frequency
Voltage Follower Pulse
Response
00565426
00565425
Voltage Follower Transient
Response
Transient Response Test Circuit
00565406
00565427
7
www.national.com
rent, ISET, of the device, the GBW product will decrease with
increasing temperature. Compensation can be provided by
creating an ISET current directly proportional to temperature
(see typical applications).
Application Hints
Avoid reversing the power supply polarity; the device will fail.
COMMON-MODE INPUT VOLTAGE
The negative common-mode voltage limit is one diode drop
above the negative supply voltage. Exceeding this limit on
either input will result in an output phase reversal. The
positive common-mode limit is typically 1V below the posi-
tive supply voltage. No output phase reversal will occur if this
limit is exceeded by either input.
ISOLATION BETWEEN AMPLIFIERS
The LM146 die is isothermally layed out such that crosstalk
between all 4 amplifiers is in excess of −105 dB (DC).
Optimum isolation (better than −110 dB) occurs between
amplifiers A and D, B and C; that is, if amplifier A dissipates
power on its output stage, amplifier D is the one which will be
affected the least, and vice versa. Same argument holds for
amplifiers B and C.
OUTPUT VOLTAGE SWING VS ISET
For a desired output voltage swing the value of the minimum
load depends on the positive and negative output current
capability of the op amp. The maximum available positive
output current, (ICL+), of the device increases with ISET
whereas the negative output current (ICL−) is independent of
LM146 TYPICAL PERFORMANCE SUMMARY
The LM146 typical behaviour is shown in Figure 3. The
device is fully predictable. As the set current, ISET, increases,
the speed, the bias current, and the supply current increase
I
SET. Figure 1 illustrates the above.
while the noise power decreases proportionally and the VOS
-
remains constant. The usable GBW range of the op amp is
10 kHz to 3.5−4 MHz.
00565407
FIGURE 1. Output Current Limit vs ISET
INPUT CAPACITANCE
The input capacitance, CIN, of the LM146 is approximately 2
pF; any stray capacitance, CS, (due to external circuit circuit
layout) will add to CIN. When resistive or active feedback is
applied, an additional pole is added to the open loop fre-
00565408
quency response of the device. For instance with resistive
1
feedback (Figure 2), this pole occurs at ⁄
2π (R1||R2) (CIN
+
FIGURE 3. LM146 Typical Characteristics
CS). Make sure that this pole occurs at least 2 octaves
beyond the expected −3 dB frequency corner of the closed
loop gain of the amplifier; if not, place a lead capacitor in the
feedback such that the time constant of this capacitor and
the resistance it parallels is equal to the RI(CS + CIN), where
RI is the input resistance of the circuit.
Low Power Supply Operation: The quad op amp operates
down to 1.3V supply. Also, since the internal circuitry is
biased through programmable current sources, no degrada-
tion of the device speed will occur.
SPEED VS POWER CONSUMPTION
LM146 vs LM4250 (single programmable). Through Figure
4, we observe that the LM146’s power consumption has
been optimized for GBW products above 200 kHz, whereas
the LM4250 will reach a GBW of no more than 300 kHz. For
GBW products below 200 kHz, the LM4250 will consume
less power.
00565409
FIGURE 2.
TEMPERATURE EFFECT ON THE GBW
The GBW (gain bandwidth product), of the LM146 is directly
proportional to ISET and inversely proportional to the abso-
lute temperature. When using resistors to set the bias cur-
www.national.com
8
Application Hints (Continued)
Single (Positive) Supply Blasing
00565410
FIGURE 4. LM146 vs LM4250
00565411
Typical Applications
Dual Supply or Negative Supply Blasing
Current Source Blasing
with Temperature Compensation
00565439
00565440
• The LM334 provides an I
directly proportional to absolute
SET
temperature. This cancels the slight GBW product Temperature coefficient
of the LM346.
9
www.national.com
Typical Applications (Continued)
Blasing all 4 Amplifiers
with Single Current Source
00565441
• For I
.I
resistors R1 and R2 are not required if a slight error between the 2 set currents can be tolerated. If not, then use R1 = R2 to create a 100
mV drop across these resistors.
SET1 SET2
Active Filters Applications
Basic (Non-Inverting “State Variable”) Active Filter Building Block
00565412
www.national.com
10
Active Filters Applications (Continued)
00565433
Note. All resistor values are given in ohms.
00565434
00565413
00565435
11
www.national.com
Active Filters Applications (Continued)
A Simple-to-Design BP, LP Filter Building Block
00565414
• If resistive biasing is used to set the LM346 performance, the Q of this filter building block is nearly insensitive to the op amp’s GBW product temperature
o
drift; it has also better noise performance than the state variable filter.
Circuit Synthesis Equations
00565436
•For the eventual use of amplifier C, see comments on the previous page.
A 3-Amplifier Notch Filter (or Elliptic Filter Building Block)
00565415
Circuit Synthesis Equations
00565437
•For nothing but a notch output: R =R, C'=C.
IN
www.national.com
12
Active Filters Applications (Continued)
Capacitorless Active Filters (Basic Circuit)
00565416
00565438
<
1. Pick up a convenient value for b; (b 1)
2. Adjust Q through R5
o
3. Adjust H
through R4
o(BP)
4. Adjust f through R
. This adjusts the unity gain frequency (f ) of the op amp.
SET u
o
13
www.national.com
Active Filters Applications (Continued)
A 4th Order Butterworth Low Pass Capacitorless Filter
00565417
Ex: f = 20 kHz, H (gain of the filter) = 1, Q = 0.541, Q = 1.306.
c
o
01
o2
•Since for this filter the GBW product of all 4 amplifiers has been designed to be the same (∼1 MHz) only one current source can be used to bias the circuit.
Fine tuning can be further accomplished through R .
b
Miscellaneous Applications
A Unity Gain Follower
with Bias Current Reduction
00565418
• For better performance, use a matched NPN pair.
www.national.com
14
Miscellaneous Applications (Continued)
Circuit Shutdown
00565442
−
• By pulling the SET pin(s) to V the op amp(s) shuts down and its output goes to a high impedance state. According to this property, the LM346 can be used
as a very low speed analog switch.
Voice Activated Switch and Amplifier
00565443
15
www.national.com
Miscellaneous Applications (Continued)
X10 Micropower Instrumentation Amplifier with Buffered Input Guarding
00565419
• CMRR: 100 dB (typ)
• Power dissipation: 0.4 mW
Schematic Diagram
00565402
www.national.com
16
Physical Dimensions inches (millimeters)
unless otherwise noted
Cavity Dual-In-Line Package (J)
Order Number LM146J, LM146J/883
NS Package Number J16A
S.O. Package (M)
Order Number LM346M
NS Package Number M16A
17
www.national.com
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
Molded Dual-In-Line Package (N)
Order Number LM346N
NS Package Number N16A
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and
whose failure to perform when properly used in
accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a
significant injury to the user.
2. A critical component is any component of a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
BANNED SUBSTANCE COMPLIANCE
National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products
Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification
(CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2.
National Semiconductor
Americas Customer
Support Center
National Semiconductor
Europe Customer Support Center
Fax: +49 (0) 180-530 85 86
National Semiconductor
Asia Pacific Customer
Support Center
National Semiconductor
Japan Customer Support Center
Fax: 81-3-5639-7507
Email: new.feedback@nsc.com
Tel: 1-800-272-9959
Email: europe.support@nsc.com
Deutsch Tel: +49 (0) 69 9508 6208
English Tel: +44 (0) 870 24 0 2171
Français Tel: +33 (0) 1 41 91 8790
Email: ap.support@nsc.com
Email: jpn.feedback@nsc.com
Tel: 81-3-5639-7560
www.national.com
National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.
相关型号：
©2020 ICPDF网 联系我们和版权申明