MAX4275 Maxim, MAX4275 Datasheet

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MAX4275

Manufacturer Part Number
MAX4275
Description
The MAX4174/MAX4175/MAX4274/MAX4275 GainAmp family combines a low-cost rail-to-rail op amp with precision internal gain-setting resistors and VCC/2 biasing
Manufacturer
Maxim
Datasheet

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Part Number:
MAX4275AGESA
Manufacturer:
MAXIM/美信
Quantity:
20 000
The MAX4174/MAX4175/MAX4274/MAX4275 Gain-
Amp™ family combines a low-cost Rail-to-Rail
with precision internal gain-setting resistors and V
biasing. Factory-trimmed on-chip resistors decrease
design size, cost, and layout, and provide 0.1% gain
accuracy. Fixed inverting gains from -0.25V/V to
-100V/V or noninverting gains from +1.25V/V to
+101V/V are available. These devices operate from a
single +2.5V to +5.5V supply and consume only 300µA.
GainAmp amplifiers are optimally compensated for
each gain version, achieving exceptional GBW prod-
ucts up to 23MHz (A
age fault protection withstands ±17V at either input
without excessive current draw.
Three versions are available in this amplifier family: single/
dual/quad open-loop, unity-gain stable (MAX4281/
MAX4282/MAX4284); single/dual fixed gain (MAX4174/
MAX4274); and single/dual fixed gain plus internal
V
MAX4275), which simplifies input biasing in single-supply
designs. The input common-mode voltage range of the
open-loop amplifiers extends from 150mV below the
negative supply to within 1.2V of the positive supply.
The outputs can swing rail-to-rail and drive a 1k Ω load
while maintaining excellent DC accuracy. The amplifier
is stable for capacitive loads up to 470pF.
19-1407; Rev 3; 8/99
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
GainAmp is a trademark of Maxim Integrated Products. Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Portable Instruments
Instruments, Terminals,
and Bar-Code Readers
Keyless Entry
Photodiode Preamps
Pg
CC
Pin Configurations continued at end of data sheet.
/ 2 bias at the noninverting input (MAX4175/
TOP VIEW
OUT
V
IN+
EE
________________________________________________________________ Maxim Integrated Products
1
2
3
V
= +25V/V to +101V/V). High-volt-
General Description
SOT23-5
MAX4174
+
Pin Configurations
Smart-Card Readers
Infrared Receivers for
Remote Controls
Low-Side Current-Sense
Amplifiers
R
R
F
G
5
4
Applications
V
IN-
CC
GainAmps/Open-Loop Op Amps
SOT23, Rail-to-Rail, Fixed-Gain
®
op amp
CC
/ 2
Ordering Information continued at end of data sheet.
* Insert the desired gain code (from the Gain Selection Guide)
††
Selector Guide appears at end of data sheet.
MAX4174_EUK-T -40°C to +85°C
MAX4175_EUK-T
in the blank to complete the part number.
Refer to the Gain Selection Guide for a list of preferred gains
and SOT Top Marks.
GainAmp Family Provides Internal Precision
Gain-Setting Resistors in SOT23 (MAX4174/5)
0.1% Gain Accuracy (R
MAX4274/5)
54 Standard Gains Available (MAX4174/5,
MAX4274/5)
Open-Loop Unity-Gain-Stable Op Amps
(MAX4281/2/4)
Rail-to-Rail Outputs Drive 1kΩ Load
Internal V
+2.5V to +5.5V Single Supply
300µA Supply Current
Up to 23MHz GBW Product
Fault-Protected Inputs Withstand ±17V
Stable with Capacitive Loads Up to 470pF with
No Isolation Resistor
INPUT
0.1 F
PART*
0.1 F
IN+
IN-
CC
Typical Operating Circuit
/ 2 Biasing (MAX4175/MAX4275)
R
-40°C to +85°C
TEMP. RANGE
G
R
R
B
B
Ordering Information
V
V
CC
EE
V
CC
F
/R
+5V
V
EE
G
) (MAX4174/5,
MAX4175
R
PACKAGE
5 SOT23-5
5 SOT23-5
F
PIN-
Features
OUT
0.1 F
MARK
TOP
††
††
1

Related parts for MAX4275

MAX4275 Summary of contents

Page 1

... MAX4274); and single/dual fixed gain plus internal bias at the noninverting input (MAX4175/ CC MAX4275), which simplifies input biasing in single-supply designs. The input common-mode voltage range of the open-loop amplifiers extends from 150mV below the negative supply to within 1.2V of the positive supply. The outputs can swing rail-to-rail and drive a 1k Ω load while maintaining excellent DC accuracy ...

Page 2

... Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS—MAX4174/MAX4175/MAX4274/MAX4275 Fixed-Gain Amplifiers ( ...

Page 3

... ELECTRICAL CHARACTERISTICS—MAX4174/MAX4175/MAX4274/MAX4275 Fixed-Gain Amplifiers (continued +2.5V to +5.5V IN+ PARAMETER SYMBOL Power-Up Time Slew Rate SR Settling Time to Within 0.01% Input Noise Voltage Density e n Input Noise Current Density i n Capacitive Load Stability C LOAD DC Gain Accuracy -3dB Bandwidth BW -3dB ELECTRICAL CHARACTERISTICS—MAX4281/MAX4282/MAX4284 Open-Loop Op Amps ( ...

Page 4

... Capacitive Load Stability C LOAD Power-Up Time Note 1: MAX4174/MAX4175/MAX4281 and MAX4274/MAX4275/MAX4282 and MAX4284 are 100% production tested +25°C. All temperature limits are guaranteed by design. A Note 2: Guaranteed by design. Note 3: The input common-mode range for IN_+ is guaranteed by a functional test. A similar test is done on the IN_- input. See the Applications Information section for more information on the input voltage range of the GainAmp ...

Page 5

R = 100kΩ small-signal LARGE-SIGNAL GAIN vs. FREQUENCY +10V +21V 10k ...

Page 6

SOT23, Rail-to-Rail, Fixed-Gain GainAmps/Open-Loop Op Amps (V = +5V 100kΩ small-signal TOTAL HARMONIC DISTORTION vs. FREQUENCY 1Vp-p OUT -20 -40 - +10V ...

Page 7

R = 100kΩ small-signal LARGE-SIGNAL PULSE RESPONSE INPUT VOLTAGE A = +1.25V/V V OUTPUT 500mV/div A = +3V/V V OUTPUT 50mV/div A = +5V/V V OUTPUT 500mV/div A = ...

Page 8

SOT23, Rail-to-Rail, Fixed-Gain GainAmps/Open-Loop Op Amps (V = +5V 100kΩ small-signal MAX4174/MAX4175/MAX4281/MAX4282/MAX4284 POWER-SUPPLY REJECTION vs. FREQUENCY -70 -75 -80 -85 -90 -95 100 1k 10k 100k 1M FREQUENCY (Hz) INPUT ...

Page 9

R = 100kΩ small-signal OPEN-LOOP GAIN AND PHASE vs. FREQUENCY 160 140 120 100 -20 - 100 1k 10k 100k 1M 10M ...

Page 10

... Amplifier Output OUTC, OUTD Negative Supply Ground Noninverting IN+, INA+, Amplifier Input INB+, INC+, Internally biased to IND for CC MAX4175/MAX4275 Inverting Amplifier IN-, INA Input. Connects to INB-, INC-, R for MAX4174/ G IND- 4175/4274/4275 Positive Supply CC No Connection N.C. Not internally connected ...

Page 11

... V at the noninverting input (MAX4175/MAX4275). All amplifiers feature rail-to-rail outputs and drive a 1k Ω load while maintaining excellent DC accuracy. Open-Loop Op Amps ...

Page 12

... The inverting inputs (IN_-) of the MAX4174/MAX4175/ MAX4274/MAX4275 must be within the supply rails or signal distortion may result. The GainAmp’s inverting input structure includes diodes to both supplies, such that driving the inverting input beyond the rails may cause signal distortions (Figure 1) ...

Page 13

... Single-supply systems benefit from a midsupply bias on the noninverting input (provided internally on MAX4175/MAX4275), as this produces a quiescent DC level at the center of the rail-to-rail output stage signal swing. For dual-supply systems, ground-referenced signals may be DC-coupled into the inverting or non- inverting inputs ...

Page 14

SOT23, Rail-to-Rail, Fixed-Gain GainAmps/Open-Loop Op Amps Supply Bypassing and Board Layout All devices in the GainAmp family operate from a +2.5V to +5.5V single supply or from ±1.25V to ±2.75V dual supplies. For single-supply operation, bypass the power supply with ...

Page 15

INPUT A = +1.25V/V V OUTPUT 50mV/div A = +3V/V V OUTPUT 50mV/div A = +5V/V V OUTPUT 50mV/div A = +10V/V V OUTPUT 50mV/div A = +25V/V V OUTPUT 50mV/div A = +51V/V V OUTPUT 50mV/div 2 s/div Figure ...

Page 16

SOT23, Rail-to-Rail, Fixed-Gain GainAmps/Open-Loop Op Amps GAIN INVERTING NONINVERTING CODE GAIN AB* 0.25 AC 0.5 AD 1.25 AF 1 AO* ...

Page 17

... TOP VIEW MAX4175 1 OUT + - IN+ 3 SOT23-5 MAX4281 N. OUT N. MAX4275 OUTA INA OUTB INA INB INB+ EE MAX/SO ______________________________________________________________________________________ SOT23, Rail-to-Rail, Fixed-Gain ...

Page 18

... Insert the desired gain code (from the Gain Selection Guide) in the blank to complete the part number. 18 ______________________________________________________________________________________ TRANSISTOR COUNTS: PIN- TOP MARK MAX4174: 178 — MAX4175: 178 — MAX4274: 332 — MAX4275: 332 — ACDR MAX4281: 178 — MAX4282: 332 — MAX4284: 328 — SUBSTRATE CONNECTED TO V — — — ...

Page 19

SOT23, Rail-to-Rail, Fixed-Gain GainAmps/Open-Loop Op Amps ______________________________________________________________________________________ Package Information 19 ...

Page 20

... SOT23, Rail-to-Rail, Fixed-Gain GainAmps/Open-Loop Op Amps Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circu implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 20 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © ...

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