LM611AMJ/883 NSC [National Semiconductor], LM611AMJ/883 Datasheet

no-image

LM611AMJ/883

Manufacturer Part Number
LM611AMJ/883
Description
Operational Amplifier and Adjustable Reference
Manufacturer
NSC [National Semiconductor]
Datasheet
© 1999 National Semiconductor Corporation
LM611
Operational Amplifier and Adjustable Reference
General Description
The LM611 consists of a single-supply op-amp and a pro-
grammable voltage reference in one space saving 8-pin
package. The op-amp out-performs most single-supply
op-amps by providing higher speed and bandwidth along
with low supply current. This device was specifically de-
signed to lower cost and board space requirements in trans-
ducer, test, measurement and data acquisition systems.
Combining a stable voltage reference with a wide output
swing op-amp makes the LM611 ideal for single supply
transducers, signal conditioning and bridge driving where
large common-mode signals are common. The voltage refer-
ence consists of a reliable band-gap design that maintains
low dynamic output impedance (1
tolerance (0.6%), and the ability to be programmed from
1.2V to 6.3V via two external resistors. The voltage refer-
ence is very stable even when driving large capacitive loads,
as are commonly encountered in CMOS data acquisition
systems.
As a member of National’s Super-Block
is a space-saving monolithic alternative to a multi-chip solu-
tion, offering a high level of integration without sacrificing
performance.
Connection Diagrams
Super-Block
is a trademark of National Semiconductor Corporation.
typical), excellent initial
DS009221
family, the LM611
DS009221-1
Features
OP AMP
n Low operating current:
n Wide supply voltage range: 4V to 36V
n Wide common-mode range: V
n Wide differential input voltage:
n Available in low cost 8-pin DIP
n Available in plastic package rated for Military
REFERENCE
n Adjustable output voltage: 1.2V to 6.3V
n Tight initial tolerance available:
n Wide operating current range: 17 µA to 20 mA
n Reference floats above ground
n Tolerant of load capacitance
Applications
n Transducer bridge driver
n Process and Mass Flow Control systems
n Power supply voltage monitor
n Buffered voltage references for A/D’s
Temperature Range Operation
300 µA (op amp)
±
±
to (V
36V
0.6%
+
−1.8V)
www.national.com
DS009221-2
May 1998

Related parts for LM611AMJ/883

LM611AMJ/883 Summary of contents

Page 1

LM611 Operational Amplifier and Adjustable Reference General Description The LM611 consists of a single-supply op-amp and a pro- grammable voltage reference in one space saving 8-pin package. The op-amp out-performs most single-supply op-amps by providing higher speed and bandwidth along ...

Page 2

Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Voltage on Any Pins Except V R − (referred to V pin) (Note 2) Current through Any Input Pin ...

Page 3

Electrical Characteristics − = GND = 0V, V These specifications apply for V unless otherwise specified. Limits in standard typeface are for T Temperature Range. Symbol Parameter OPERATIONAL AMPLIFIER PSRR Power Supply 4V PSRR = 20 log ( V Rejection-Ratio ...

Page 4

... Note 11: Low contact resistance is required for accurate measurement. Note 12: Military RETS 611AMX electrical test specification is available on request. The LM611AMJ/883 can also be procured as a Standard Military Drawing. Simplified Schematic Diagrams www ...

Page 5

Simplified Schematic Diagrams Reference Typical Performance Characteristics (Reference) 0V, unless otherwise noted Reference Voltage vs Temp on 5 Representative Units DS009221-33 Reference Voltage vs Current and Temperature DS009221-36 (Continued) DS009221-91 = 25˚C, FEEDBACK pin shorted Reference ...

Page 6

Typical Performance Characteristics (Reference) = 0V, unless otherwise noted (Continued) Reference Voltage vs Reference Current DS009221-39 Feedback Current vs Feedback-to-Anode Voltage DS009221-42 Reference Power-Up Time DS009221-45 www.national.com = 25˚C, FEEDBACK pin shorted Reference AC Stability Range ...

Page 7

Typical Performance Characteristics (Reference) = 0V, unless otherwise noted (Continued) Reference Step Response z for 100 µ Current Step DS009221-48 Typical Performance Characteristics (Op Amps 25˚C, unless otherwise noted / Input Common-Mode ...

Page 8

Typical Performance Characteristics (Op Amps 25˚C, unless otherwise noted (Continued) V /2, T OUT J Output Source Current vs Output Voltage and Temp. DS009221-56 Output Impedance vs Frequency and Gain DS009221-59 Op Amp Voltage Noise vs ...

Page 9

Typical Performance Characteristics (Op Amps 25˚C, unless otherwise noted (Continued) V /2, T OUT J Small-Signal Voltage Gain vs Frequency and Load DS009221-65 Power Supply Current vs Power Supply Voltage DS009221-68 Slew Rate vs Temperature DS009221-71 ...

Page 10

Typical Performance Distributions Average V Drift OS Military Temperature Range DS009221-74 Average I Drift OS Military Temperature Range DS009221-77 Voltage Reference Broad-Band Noise Distribution DS009221-80 Application Information VOLTAGE REFERENCE Reference Biasing The voltage reference shunt regulator topology ...

Page 11

Application Information (Continued) The reference equivalent circuit reveals how V constant 1.2V by feedback, and how the FEEDBACK pin passes little current. To generate the required reverse current, typically a resistor is connected from a supply voltage higher than the ...

Page 12

Application Information FIGURE 8. Diode in Series with R1 Causes Voltage Across R1 and Proportional to Absolute Temperature (PTAT) Connecting a resistor across Cathode-to-FEEDBACK cre- ates current source, but a range of TCs may ...

Page 13

Typical Applications *10k must be low t.c. trim pot. FIGURE 12. Ultra Low Noise 10.00V Reference. Total Output Noise is Typically 14 µV Adjust the 10k pot for 10.000V. = (R1/ OUT REF R1, R2 ...

Page 14

Typical Applications (Continued) FIGURE 16. Nulling Bridge Detection System. Adjust sensitivity via 400 k Null offset with R1, and bridge drive with the 10k pot. www.national.com DS009221-32 pot. 14 ...

Page 15

... Ordering Information Reference Tolerance & V Military OS −55˚C T +125˚C A ± @ 0.6% LM611AMN 80 ppm/˚C max = 3.5 mV max V LM611AMJ/883 (Note 12) OS ± 2.0% @ LM611MN 150 ppm/˚C max = 5 mV max V — OS Temperature Range Industrial Commercial −40˚C T +85˚C 0˚C T +70˚ LM611AIN — ...

Page 16

... Physical Dimensions inches (millimeters) unless otherwise noted Plastic Surface Mount Narrow Package (0.15) (M) www.national.com Hermetic Dual-In-Line Package (J) Order Number LM611AMJ/883 NS Package Number J08A Order Number LM611CM or LM611IM NS Package Number M14A 16 ...

Page 17

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Order Number LM611CN, LM611AIN, LM611BIN, LM611AMN or LM611MN 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 ...

Related keywords