MAX4244.pdf 데이터시트 (총 16 페이지) - 파일 다운로드 MAX4244 데이타시트 다운로드

No Preview Available !

19-1343; Rev 3; 9/06
Single/Dual/Quad, +1.8V/10µA, SOT23,
Beyond-the-Rails Op Amps
General Description
The MAX4240–MAX4244 family of micropower op amps
operate from a single +1.8V to +5.5V supply or dual
±0.9V to ±2.75V supplies and have Beyond-the-Rails™
inputs and rail-to-rail output capabilities. These ampli-
fiers provide a 90kHz gain-bandwidth product while
using only 10µA of supply current per amplifier. The
MAX4241/MAX4243 have a low-power shutdown mode
that reduces supply current to less than 1µA and forces
the output into a high-impedance state. Although the
minimum operating voltage is specified at +1.8V, these
devices typically operate down to +1.5V. The combina-
tion of ultra-low-voltage operation, beyond-the-rails
inputs, rail-to-rail outputs, and ultra-low power con-
sumption makes these devices ideal for any portable/
two-cell battery-powered system.
These amplifiers have an input common-mode range
that extends 200mV beyond each rail, and their out-
puts typically swing to within 9mV of the rails with a
100kload. Beyond-the-rails input and rail-to-rail out-
put characteristics allow the full power-supply voltage
to be used for signal range. The combination 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 MAX4240 is offered in a space-saving 5-pin
SOT23 package. All specifications are guaranteed
over the -40°C to +85°C extended temperature range.
Applications
Two-Cell Battery-
Powered Systems
Portable/Battery-Powered
Electronic Equipment
Digital Scales
Strain Gauges
Sensor Amplifiers
Cellular Phones
Notebook Computers
PDAs
Selector Guide
PART
NO. OF
AMPS
SHUTDOWN
PIN-PACKAGE
MAX4240
MAX4241
1
1
— 5-pin SOT23
Yes 8-pin µMAX/SO
MAX4242
2
— 8-pin µMAX/SO
MAX4243
2
Yes 10-pin µMAX,
14-pin SO
MAX4244
4
— 14-pin SO
Beyond-the-Rails is a trademark and µMAX is a registered
trademark of Maxim Integrated Products, Inc.
Features
Ultra-Low-Voltage Operation:
Guaranteed Down to +1.8V
Typical Operation to +1.5V
Ultra-Low Power Consumption:
10µA Supply Current per Amplifier
1µA Shutdown Mode (MAX4241/MAX4243)
Up to 200,000 Hours Operation from Two AA
Alkaline Cells
Beyond-the-Rails 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
8-Pin µMAX® Packages
Ordering Information
PART
TEMP RANGE
MAX4240EUK-T -40°C to +85°C
MAX4241EUA -40°C to +85°C
MAX4241ESA -40°C to +85°C
MAX4242EUA -40°C to +85°C
MAX4242ESA -40°C to +85°C
MAX4243EUB -40°C to +85°C
MAX4243ESD -40°C to +85°C
MAX4244ESD -40°C to +85°C
PIN-
PACKAGE
5 SOT23-5
8 µMAX
8 SO
8 µMAX
8 SO
10 µMAX
14 SO
14 SO
TOP
MARK
ACCS
Pin Configurations
TOP VIEW
OUT 1
5 VCC
MAX4240
VEE 2
IN+ 3
4 IN-
SOT23-5
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
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.

No Preview Available !

Single/Dual/Quad, +1.8V/10µA, SOT23,
Beyond-the-Rails Op Amps
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC to VEE) ....................................................6V
All Other Pins ...................................(VCC + 0.3V) to (VEE - 0.3V)
Output Short-Circuit Duration (to VCC or VEE)............Continuous
Continuous Power Dissipation (TA = +70°C)
5-pin SOT23 (derate 7.1mW/°C above +70°C).............571mW
8-pin µMAX (derate 4.1mW/°C above +70°C) ..............330mW
8-pin SO (derate 5.88mW/°C above +70°C).................471mW
10-pin µMAX (derate 5.6mW/°C above +70°C) ............444mW
14-pin SO (derate 8.33mW/°C above +70°C)...............667mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VCC = +1.8V to +5.5V, VEE = 0, VCM = 0, VOUT = VCC / 2, RL = 100kΩ tied to VCC / 2, SHDN = VCC, TA = +25°C, unless
otherwise noted.) (Note 1)
PARAMETER
Supply-Voltage Range
Supply Current
per Amplifier
Shutdown Supply
Current (Note 2)
Input Offset Voltage
Input Bias Current
Input Offset Current
Differential Input
Resistance
Input Common-Mode
Voltage Range
SYMBOL
VCC
ICC
ICC(SHDN)
VOS
IB
IOS
RIN(DIFF)
CONDITIONS
Inferred from PSRR test
SHDN = VCC
SHDN = VEE
VCC = 1.8V
VCC = 5.0V
VCC = 1.8V
VCC = 5.0V
MAX4241ESA
(VEE - 0.2V) VCM
(VCC + 0.2V)
MAX4242ESA/MAX4243ESD/
MAX4244ESD
MAX4240EUK/MAX424_EUA/
MAX4243EUB
(Note 3)
(Note 3)
VIN+ - VIN-< 1.0V
VIN+ - VIN-> 2.5V
MIN
1.8
TYP
10
14
1.0
2.0
±0.20
±0.20
±0.25
±2
±0.5
45
4.4
MAX
5.5
12
18
1.5
3.0
±0.75
UNITS
V
µA
µA
±0.88
mV
±1.40
±6
±1.5
nA
nA
MΩ
kΩ
VCM Inferred from the CMRR test
VEE - 0.2
VCC + 0.2 V
VCC = 1.8V
MAX4241ESA
MAX4242ESA/MAX4243ESD/
MAX4244ESD
72
69
90
90
Common-Mode
Rejection Ratio
(Note 4)
CMRR
VCC = 5.0V
MAX4240EUK/MAX424_EUA/
MAX4243EUB
MAX4241ESA
MAX4242ESA/MAX4243ESD/
MAX4244ESD
MAX4240EUK/MAX424_EUA/
MAX4243EUB
63
74
74
69
88
94
94
90
dB
2 _______________________________________________________________________________________

No Preview Available !

Single/Dual/Quad, +1.8V/10µA, SOT23,
Beyond-the-Rails Op Amps
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +1.8V to +5.5V, VEE = 0, VCM = 0, VOUT = VCC / 2, RL = 100kΩ tied to VCC / 2, SHDN = VCC, TA = +25°C, unless
otherwise noted.) (Note 1)
PARAMETER
Power-Supply
Rejection Ratio
Large-Signal
Voltage Gain
Output Voltage
Swing High
Output Voltage
Swing Low
Output Short-Circuit
Current
SYMBOL
PSRR
AVOL
VOH
VOL
IOUT(SC)
CONDITIONS
MAX4241ESA
1.8V VCC 5.5V
MAX4242ESA/MAX4243ESD/
MAX4244ESD
MAX4240EUK/MAX424_EUA/
MAX4243EUB
(VEE + 0.2V) VOUT
(VCC - 0.2V)
Specified as
VCC - VOH
Specified as
VEE - VOL
Sourcing
VCC = 1.8V
VCC = 5.0V
VCC = 1.8V
VCC = 5.0V
VCC = 1.8V
VCC = 5.0V
RL = 100kΩ
RL = 10kΩ
RL = 100kΩ
RL = 10kΩ
RL = 100kΩ
RL = 10kΩ
RL = 100kΩ
RL = 10kΩ
RL = 100kΩ
RL = 10kΩ
RL = 100kΩ
RL = 10kΩ
Sinking
MIN
77
77
75
76
66
86
78
TYP
85
85
82
85
73
94
85
8
40
10
60
6
23
10
40
0.7
2.5
MAX UNITS
dB
dB
20
65
25
mV
95
15
35
20
mV
60
mA
Output Leakage
Current in Shutdown
(Notes 2, 5)
IOUT(SHDN) SHDN = VEE = 0, VCC = 5.5V
20 50 nA
SHDN Logic Low
(Note 2)
VIL
0.3 x VCC V
SHDN Logic High
(Note 2)
VIH
0.7 x VCC
V
SHDN Input Bias
Current (Note 2)
Channel-to-Channel
Isolation (Note 6)
IIH, IIL SHDN = VCC = 5.5V or SHDN = VEE = 0
CHISO Specified at DC
40 80 nA
80 dB
Gain-Bandwidth
Product
Phase Margin
Gain Margin
Slew Rate
GBW
Φm
Gm
SR
90 kHz
68 degrees
18 dB
40 V/ms
_______________________________________________________________________________________ 3

No Preview Available !

Single/Dual/Quad, +1.8V/10µA, SOT23,
Beyond-the-Rails Op Amps
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +1.8V to +5.5V, VEE = 0, VCM = 0, VOUT = VCC / 2, RL = 100kΩ tied to VCC / 2, SHDN = VCC, TA = +25°C, unless
otherwise noted.) (Note 1)
PARAMETER
Input Voltage-Noise
Density
Input Current-Noise
Density
Capacitive-Load
Stability
Shutdown Time
Enable Time from
Shutdown
Power-Up Time
Input Capacitance
Total Harmonic
Distortion
Settling Time to 0.01%
SYMBOL
en
in
tSHDN
tENABLE
tON
CIN
THD
tS
f = 1kHz
CONDITIONS
f = 1kHz
AVCL = +1V/V, no sustained oscillations
fIN = 1kHz, VCC = 5.0V, VOUT = 2Vp-p, AV = +1V/V
AV = +1V/V, VCC = 5.0V, VOUT = 2VSTEP
MIN TYP MAX UNITS
70 nV/Hz
0.05 pA/Hz
200 pF
50 µs
150 µs
200 µs
3 pF
0.05 %
50 µs
ELECTRICAL CHARACTERISTICS
(VCC = +1.8V to +5.5V, VEE = 0, VCM = 0, VOUT = VCC / 2, RL = 100kΩ tied to VCC / 2, SHDN = VCC, TA = TMIN to TMAX, unless oth-
erwise noted.) (Note 1)
PARAMETER
Supply-Voltage Range
Supply Current
per Amplifier
Shutdown Supply
Current (Note 2)
Input Offset Voltage
Input Offset Voltage
Drift
Input Bias Current
Input Offset Current
Input Common-Mode
Voltage Range
SYMBOL
VCC
ICC
ICC(SHDN)
VOS
CONDITIONS
Inferred from PSRR test
SHDN = VCC
SHDN = VEE
VCC = 1.8V
VCC = 5.0V
VCC = 1.8V
VCC = 5.0V
MAX4241ESA
(VEE - 0.2V) VCM
(VCC + 0.2V)
MAX4242ESA/MAX4243ESD/
MAX4244ESD
MAX4240EUK/MAX424_EUA/
MAX4243EUB
TCVOS
IB
IOS
VCM
(Note 3)
(Note 3)
Inferred from the CMRR test
MIN
1.8
-0.2
TYP MAX UNITS
5.5 V
14
19
µA
2.0
3.5
µA
±1.2
±1.3
mV
±2.0
2 µV/°C
±15 nA
±7 nA
VCC + 0.2
V
4 _______________________________________________________________________________________

No Preview Available !

Single/Dual/Quad, +1.8V/10µA, SOT23,
Beyond-the-Rails Op Amps
ELECTRICAL CHARACTERISTICS
(VCC = +1.8V to +5.5V, VEE = 0, VCM = 0, VOUT = VCC / 2, RL = 100kΩ tied to VCC / 2, SHDN = VCC, TA = TMIN to TMAX, unless oth-
erwise noted.) (Note 1)
PARAMETER
Common-Mode
Rejection Ratio
(Note 4)
Power-Supply
Rejection Ratio
Large-Signal
Voltage Gain
Output Voltage
Swing High
Output Voltage
Swing Low
Output Leakage
Current in Shutdown
(Notes 2, 5)
SHDN Logic Low
(Note 2)
SYMBOL
CMRR
PSRR
AVOL
VOH
VOL
CONDITIONS
MAX4241ESA
VCC = 1.8V
MAX4242ESA/MAX4243ESD/
MAX4244ESD
MAX4240EUK/MAX424_EUA/
MAX4243EUB
MAX4241ESA
VCC = 5.0V
MAX4242ESA/MAX4243ESD/
MAX4244ESD
MAX4240EUK/MAX424_EUA/
MAX4243EUB
MAX4241ESA
1.8V VCC 5.5V
MAX4242ESA/MAX4243ESD/
MAX4244ESD
MAX4240EUK/MAX424_EUA/
MAX4243EUB
(VEE + 0.2V) VOUT
(VCC - 0.2V)
Specified as
VCC - VOH
Specified as
VEE - VOL
VCC = 1.8V
VCC = 5.0V
VCC = 1.8V
VCC = 5.0V
VCC = 1.8V
VCC = 5.0V
RL = 100kΩ
RL = 10kΩ
RL = 100kΩ
RL = 10kΩ
RL = 100kΩ
RL = 10kΩ
RL = 100kΩ
RL = 10kΩ
RL = 100kΩ
RL = 10kΩ
RL = 100kΩ
RL = 10kΩ
MIN
65
65
61
71
71
67
73
73
71
72
62
80
72
IOUT(SHDN) SHDN = VEE = 0, VCC = 5.5V
VIL
TYP MAX UNITS
dB
dB
dB
25
95
30
mV
145
20
50
25
mV
75
100 nA
0.3 x VCC
V
_______________________________________________________________________________________ 5