MAX4044 Maxim, MAX4044 Datasheet

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MAX4044

Manufacturer Part Number
MAX4044
Description
The MAX4040–MAX4044 family of micropower op amps operates from a single +2
Manufacturer
Maxim
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MAX4044ESD
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
MAX4044ESD+
Manufacturer:
Maxim Integrated Products
Quantity:
135
19-1377; Rev 1; 9/05
The MAX4040–MAX4044 family of micropower op amps
operates from a single +2.4V to +5.5V supply or dual
±1.2V to ±2.75V supplies and have rail-to-rail input and
output capabilities. These amplifiers provide a 90kHz
gain-bandwidth product while using only 10µA of supply
current per amplifier. The MAX4041/MAX4043 have a
low-power shutdown mode that reduces supply current
to less than 1µA and forces the output into a high-imped-
ance state. The combination of low-voltage operation,
rail-to-rail inputs and outputs, and ultra-low power con-
sumption makes these devices ideal for any
portable/battery-powered system.
These amplifiers have outputs that typically swing to
within 10mV of the rails with a 100k
input and output characteristics allow the full power-
supply voltage to be used for signal range. The combi-
nation of low input offset voltage, low input bias current,
and high open-loop gain makes them suitable for low-
power/low-voltage precision applications.
The MAX4040 is offered in a space-saving 5-pin SOT23
package. All specifications are guaranteed over the
-40°C to +85°C extended temperature range.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
________________________Applications
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
________________General Description
MAX4040
MAX4041
MAX4042
MAX4043
MAX4044
Battery-Powered
Systems
Portable/Battery-Powered
Electronic Equipment
Digital Scales
PART
NO. OF
AMPS
1
1
2
2
4
________________________________________________________________ Maxim Integrated Products
SHUTDOWN
Yes
Yes
Micropower Rail-to-Rail I/O Op Amps
Single/Dual/Quad, Low-Cost, SOT23,
Selector Guide
Strain Gauges
Sensor Amplifiers
Cellular Phones
Notebook Computers
PDAs
5-pin SOT23,
8-pin µMAX/SO
8-pin µMAX/SO
8-pin µMAX/SO
10-pin µMAX/
14-pin SO
14-pin SO
PIN-PACKAGE
load. Rail-to-rail
♦ Single-Supply Operation Down to +2.4V
♦ Ultra-Low Power Consumption:
♦ Rail-to-Rail Input Common-Mode Range
♦ Outputs Swing Rail-to-Rail
♦ No Phase Reversal for Overdriven Inputs
♦ 200µV Input Offset Voltage
♦ Unity-Gain Stable for Capacitive Loads up to 200pF
♦ 90kHz Gain-Bandwidth Product
♦ Available in Space-Saving 5-Pin SOT23 and
____________________________Features
Pin Configurations continued at end of data sheet.
MAX4040EUK-T
MAX4040EUA
MAX4040ESA
MAX4041ESA
MAX4041EUA
MAX4042EUA
MAX4042ESA
MAX4043EUB
MAX4043ESD
MAX4044ESD
8-Pin µMAX
TOP VIEW
10µA Supply Current per Amplifier
1µA Shutdown Mode (MAX4041/MAX4043)
PART
®
OUT
V
IN+
Packages
EE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
1
2
3
Ordering Information
SOT23-5
MAX4040
Pin Configurations
PIN-
PACKAGE
5 SOT23-5
8 µMAX
8 SO
8 SO
8 µMAX
8 µMAX
8 SO
10 µMAX
14 SO
14 SO
5
4
V
IN-
CC
TOP MARK
ACGF
SOT
1

Related parts for MAX4044

MAX4044 Summary of contents

Page 1

... Rev 1; 9/05 Single/Dual/Quad, Low-Cost, SOT23, Micropower Rail-to-Rail I/O Op Amps ________________General Description The MAX4040–MAX4044 family of micropower op amps operates from a single +2.4V to +5.5V supply or dual ±1.2V to ±2.75V supplies and have rail-to-rail input and output capabilities. These amplifiers provide a 90kHz gain-bandwidth product while using only 10µA of supply current per amplifier ...

Page 2

... Specified Swing Low Sourcing Output Short-Circuit I OUT(SC) Current Sinking Channel-to-Channel Specified at DC, MAX4042/MAX4043/MAX4044 only Isolation 2 _______________________________________________________________________________________ 10-Pin µMAX (derate 5.6mW/°C above +70°C) ...........444mW + 0.3V 0.3V) 14-Pin SO (derate 8.33mW/°C above +70°C)..............667mW EE ..............Continuous Operating Temperature Range ...........................-40°C to +85°C EE Junction Temperature ......................................................+150° ...

Page 3

... V OUT STEP = MIN MAX / 2, SHDN = 100k tied CONDITIONS Inferred from PSRR test SHDN = V , MAX4041 and MAX4043 only EE MAX4044ESA MAX404_EU_ All other packages (Note 1) (Note unless otherwise noted.) CC MIN TYP MAX UNITS 20 100 0 ...

Page 4

Single/Dual/Quad, Low-Cost, SOT23, Micropower, Rail-to-Rail I/O Op Amps ELECTRICAL CHARACTERISTICS— +5. OUT PARAMETER SYMBOL Input Common-Mode V Inferred from the CMRR test CM Voltage Range Common-Mode CMRR V ...

Page 5

Single/Dual/Quad, Low-Cost, SOT23, Micropower, Rail-to-Rail I/O Op Amps / 2, SHDN = +5.0V INPUT OFFSET VOLTAGE vs. TEMPERATURE 400 300 200 100 0 40 -60 -40 -20 ...

Page 6

Single/Dual/Quad, Low-Cost, SOT23, Micropower, Rail-to-Rail I/O Op Amps ____________________________________Typical Operating Characteristics (continued SHDN = +5.0V OPEN-LOOP GAIN vs. OUTPUT SWING LOW (V = +2.4V, R ...

Page 7

... Single/Dual/Quad, Low-Cost, SOT23, Micropower, Rail-to-Rail I/O Op Amps ____________________________________Typical Operating Characteristics (continued SHDN = +5.0V MAX4042/MAX4043/MAX4044 CROSSTALK vs. FREQUENCY -60 -70 -80 -90 -100 -110 100 10 1k FREQUENCY (Hz) LOAD RESISTOR vs. CAPACITIVE LOAD 1000 10% OVERSHOOT MARGINAL STABILITY 100 REGION OF STABLE OPERATION 10 0 250 ...

Page 8

... Description Rail-to-Rail Input Stage The MAX4040–MAX4044 have rail-to-rail inputs and rail-to-rail output stages that are specifically designed for low-voltage, single-supply operation. The input stage consists of separate NPN and PNP differential stages, which operate together to provide a common- mode range extending to both supply rails ...

Page 9

... R2 nentially from 45M conducting. Conversely, the bias current increases with the same curve. The MAX4040–MAX4044 output stage can drive 25k load and still swing to within 60mV of the rails. Figure 3 shows the output voltage swing of a MAX4040 configured as a unity-gain buffer, powered from a single +4 ...

Page 10

... Figures 5a and 5b show the typical current source and sink capability of the MAX4040–MAX4044 family as a function of supply voltage and ambient temperature. The contours on the graph depict the output current value, based on driving the output voltage to within 50mV, 100mV, and 200mV of either power-supply rail ...

Page 11

... Surface-mount components are an excellent choice. Using the MAX4040–MAX4044 Although optimized for use as operational amplifiers, the MAX4040–MAX4044 can also be used as rail-to-rail I/O comparators. Typical propagation delay depends on the input overdrive voltage, as shown in Figure 7. External hysteresis can be used to minimize the risk of output oscillation ...

Page 12

... EE Using the MAX4040–MAX4044 as Ultra-Low-Power Current Monitors The MAX4040–MAX4044 are ideal for applications pow- ered from a battery stack. Figure 9 shows an application circuit in which the MAX4040 is used for monitoring the current of a battery stack. In this circuit, a current load is applied, and the voltage drop at the battery terminal is sensed ...

Page 13

... INB- MAX4043 INB N.C. SHDNA 6 9 SHDNB N. N.C. SO ___________________Chip Information MAX4040/MAX4041 TRANSISTOR COUNT: 234 MAX4042/MAX4043 TRANSISTOR COUNT: 466 MAX4044 TRANSISTOR COUNT: 932 SUBSTRATE CONNECTED TO V OUTA INA OUTB MAX4042 INA INB INB+ EE SO/ MAX OUTA ...

Page 14

... Single/Dual/Quad, Low-Cost, SOT23, Micropower, Rail-to-Rail I/O Op Amps (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) 14 ______________________________________________________________________________________ Package Information PACKAGE OUTLINE, SOT-23 21-0057 E 1 ...

Page 15

... Single/Dual/Quad, Low-Cost, SOT23, Micropower, Rail-to-Rail I/O Op Amps (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages Ø 0.50±0.1 0.6±0.1 1 0.6±0.1 D TOP VIEW FRONT VIEW ______________________________________________________________________________________ ...

Page 16

... A1 D1 FRONT VIEW Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © ...

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