LM346M National Semiconductor, LM346M Datasheet

no-image

LM346M

Manufacturer Part Number
LM346M
Description
IC, OP AMP, QUAD, 16SOIC
Manufacturer
National Semiconductor
Datasheet

Specifications of LM346M

Op Amp Type
Low Power
No. Of Amplifiers
4
Bandwidth
1.2MHz
Slew Rate
0.4V/µs
Supply Voltage Range
3V To 36V
Amplifier Case Style
SOIC
No. Of Pins
16
Operating Temperature Range
0°C To +70°C
Svhc
No
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM346M
Manufacturer:
NS
Quantity:
815
Part Number:
LM346M
Manufacturer:
ST
0
Part Number:
LM346M
Manufacturer:
NS/国半
Quantity:
20 000
Company:
Part Number:
LM346M
Quantity:
301
Part Number:
LM346MX
Manufacturer:
NSC
Quantity:
1 040
Part Number:
LM346MX
Manufacturer:
NS/国半
Quantity:
20 000
Company:
Part Number:
LM346MX
Quantity:
232
Part Number:
LM346MX/NOPB
Manufacturer:
FREESCALE
Quantity:
6 218
© 2004 National Semiconductor Corporation
LM146/LM346
Programmable Quad Operational Amplifiers
General Description
The LM146 series of quad op amps consists of four inde-
pendent, high gain, internally compensated, low power, pro-
grammable amplifiers. Two external resistors (R
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.
Connection Diagram
Capacitorless Active Filters (Basic Circuit)
Order Number LM146J, LM146J/883,
LM346M,LM346MX or LM346N
See NS Package Number
Dual-In-Line Package
J16A, M16A or N16A
Top View
00565401
DS005654
SET
) allow
Features
(I
n Programmable electrical characteristics
n Battery-powered operation
n Low supply current:
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
n Input bias currents are temperature compensated
PROGRAMMING EQUATIONS
Total Supply Current = 1.4 mA (I
Gain Bandwidth Product = 1 MHz (I
Slew Rate = 0.4V/µs (I
Input Bias Current . 50 nA (I
I
SET
SET
=10 µA)
= Current into pin 8, pin 9 (see schematic-diagram)
00565416
SET
350 µA/amplifier
/10 µA)
SET
±
1.5V to
SET
/10 µA)
SET
/10 µA)
/10 µA)
±
22V
www.national.com
August 2000

Related parts for LM346M

LM346M Summary of contents

Page 1

... LM146 pin-out is the same as the LM124 and LM148. Connection Diagram Dual-In-Line Package 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) © 2004 National Semiconductor Corporation Features (I =10 µ ...

Page 2

... Absolute Maximum Ratings 5) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Differential Input Voltage (Note 1) CM Input Voltage (Note 1) Power Dissipation (Note 2) Output Short-Circuit Duration (Note 3) Operating Temperature Range ...

Page 3

DC Electrical Characteristics ± 15V, I =10 µA), (Note 4) S SET Parameter ± 12V, T Input Resistance T =25˚C A Input Capacitance T =25˚C A Input Offset Voltage V =0V Input Offset Current V =0V ...

Page 4

Typical Performance Characteristics Input Bias Current vs I Open Loop Voltage Gain vs I SET Gain Bandwidth Product vs I SET www.national.com SET 00565444 00565446 00565448 4 Supply Current vs I SET 00565445 Slew Rate vs I SET 00565447 Phase ...

Page 5

Typical Performance Characteristics Input Offset Voltage vs I SET Power Supply Rejection Ratio vs I SET Input Voltage Range vs Supply Voltage (Continued) Common-Mode Rejection 00565450 Open Voltage Swing vs 00565452 00565454 5 Ratio vs I SET 00565451 Supply Voltage ...

Page 6

Typical Performance Characteristics Input Bias Current vs Temperature Supply Current vs Temperature Gain Bandwidth Product vs Temperature www.national.com (Continued) Input Offset Current vs 00565456 Open Loop Voltage Gain 00565458 00565421 6 Temperature 00565457 vs Temperature 00565420 Slew Rate vs Temperature ...

Page 7

Typical Performance Characteristics Input Noise Voltage vs Frequency Power Supply Rejection Ratio vs Frequency Voltage Follower Transient Response (Continued) Input Noise Current vs 00565423 Voltage Follower Pulse 00565425 Transient Response Test Circuit 00565427 7 Frequency 00565424 Response 00565426 00565406 www.national.com ...

Page 8

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 ...

Page 9

Application Hints (Continued) FIGURE 4. LM146 vs LM4250 Typical Applications Dual Supply or Negative Supply Blasing Single (Positive) Supply Blasing 00565410 with Temperature Compensation 00565439 • The LM334 provides an I temperature. This cancels the slight GBW product Temperature coefficient ...

Page 10

Typical Applications • 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 create a 100 SET1 SET2 mV drop ...

Page 11

Active Filters Applications Note. All resistor values are given in ohms. (Continued) 00565413 11 00565433 00565434 00565435 www.national.com ...

Page 12

Active Filters Applications • If resistive biasing is used to set the LM346 performance, the Q drift; it has also better noise performance than the state variable filter. Circuit Synthesis Equations • For the eventual use of amplifier C, see ...

Page 13

Active Filters Applications < 1. Pick up a convenient value for Adjust Q through Adjust H through R4 o(BP) 4. Adjust f through R . This adjusts the unity gain frequency (f o ...

Page 14

Active Filters Applications A 4th Order Butterworth Low Pass Capacitorless Filter Ex kHz, H (gain of the filter • Since for this filter the GBW product of all 4 amplifiers has ...

Page 15

Miscellaneous Applications − • By pulling the SET pin( 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 ...

Page 16

Miscellaneous Applications X10 Micropower Instrumentation Amplifier with Buffered Input Guarding • CMRR: 100 dB (typ) • Power dissipation: 0.4 mW Schematic Diagram www.national.com (Continued) 16 00565419 00565402 ...

Page 17

... 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 ...

Page 18

... 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. ...

Related keywords