Maxim MAX1241CMJA, MAX1241CESA, MAX1241CEPA, MAX1241BMJA, MAX1241BESA Datasheet

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Maxim MAX1241CMJA, MAX1241CESA, MAX1241CEPA, MAX1241BMJA, MAX1241BESA Datasheet

KIT

EVALUATION

AVAILABLE

12-Bit Serial ADCs in 8-Pin SO

Description

-power, 12-bit analogin 8-pin packwith a single +2.7V to

operates with a single devices feature a 7.5µs a fast track/hold a high-speed, 3-wire ser-

(VDD = 3V) at the

. A 2µA shutdown throughput rates.

2.5V reference, while the reference. The MAX1241 REF, and the reference supply rail. An exterthe 3-wire interface, microcontroller I/O

ports. The interface is compatible with SPI™, QSPI™, and MICROWIRE™.

Excellent AC characteristics and very low power combined with ease of use and small package size make these converters ideal for remote-sensor and dataacquisition applications, or for other circuits with demanding power consumption and space requirements. The MAX1240/MAX1241 are available in 8-pin DIP and SO packages.

Applications

Battery-Powered Systems

Portable Data Logging

Isolated Data Acquisition

Process Control

Instrumentation

Pin Configuration

TOP VIEW

VDD

1

 

8

SCLK

AIN

2

MAX1240

7

CS

SHDN

3

6

DOUT

MAX1241

REF

4

 

5

GND

DIP/SO

________________________________Features

Single-Supply Operation: +2.7V to +3.6V (MAX1240) +2.7V to +5.25V (MAX1241)

12-Bit Resolution

Internal 2.5V Reference (MAX1240)

Small Footprint: 8-Pin DIP/SO Packages

Low Power: 3.7µW (73ksps, MAX1240) 3mW (73ksps, MAX1241)

66µW (1ksps, MAX1241) 5µW (power-down mode)

Internal Track/Hold

SPI/QSPI/MICROWIRE 3-Wire Serial Interface

Internal Clock

Ordering Information

PART

TEMP. RANGE

PIN-

INL

PACKAGE

(LSB)

 

 

 

 

 

 

MAX1240ACPA

0°C to +70°C

8 Plastic DIP

±1/2

MAX1240BCPA

0°C to +70°C

8 Plastic DIP

±1

 

 

 

 

MAX1240CCPA

0°C to +70°C

8 Plastic DIP

±1

 

 

 

 

MAX1240ACSA

0°C to +70°C

8 SO

±1/2

MAX1240BCSA

0°C to +70°C

8 SO

±1

 

 

 

 

MAX1240CCSA

0°C to +70°C

8 SO

±1

 

 

 

 

MAX1240BC/D

0°C to +70°C

Dice*

±1

 

 

 

 

Ordering Information continued at end of data sheet.

*Dice are specified at TA = +25°C, DC parameters only.

 

 

 

Functional Diagram

 

 

 

VDD

 

 

 

 

 

1

 

 

CS

7

 

 

 

 

8

 

 

 

 

SCLK

 

 

 

 

 

 

 

 

 

SHDN

3

CONTROL

INT

 

 

 

LOGIC

CLOCK

 

 

 

 

OUTPUT

6

 

 

 

 

 

 

 

 

SHIFT

DOUT

 

 

 

 

REGISTER

 

AIN

2

T/H

12-BIT

 

 

SAR

 

 

 

 

 

 

 

2.5V REFERENCE

 

MAX1240

 

REF

4

(MAX1240 ONLY)

 

MAX1241

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

GND

 

 

SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp.

________________________________________________________________ Maxim Integrated Products 1

MAX1240/MAX1241

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.

MAX1240/MAX1241

+2.7V, Low-Power,

12-Bit Serial ADCs in 8-Pin SO

ABSOLUTE MAXIMUM RATINGS

VDD to GND .............................................................

 

- 0.3V to +6V

AIN to GND................................................

-0.3V to (VDD + 0.3V)

REF to GND ...............................................

-0.3V to (VDD + 0.3V)

Digital Inputs to GND...............................................

 

- 0.3V to +6V

DOUT to GND............................................

-0.3V to (VDD + 0.3V)

DOUT Current..................................................................

 

±25mA

Continuous Power Dissipation (TA = +70°C)

 

Plastic DIP (derate 9.09mW/°C above +70°C)

...........727mW

SO (derate 5.88mW/°C above +70°C)........................

 

471mW

CERDIP (derate 8.00mW/°C above +70°C)................

640mW

Operating Temperature Ranges

 

MAX1240_C_A/MAX1241_C_A .........................

0°C to +70°C

MAX1240_E_ A/MAX1241_E_ A .....................

-40°C to +85°C

MAX1240_MJA/MAX1241_MJA ...................

-55°C to +125°C

Storage Temperature Range............................

-60°C to +150°C

Lead Temperature (soldering, 10sec)............................

+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

(VDD = +2.7V to +3.6V (MAX1240); VDD = +2.7V to +5.25V (MAX1241); 73ksps, fSCLK = 2.1MHz (50% duty cycle); MAX1240—4.7µF capacitor at REF pin, MAX1241—external reference; VREF = 2.500V applied to REF pin; TA = TMIN to TMAX; unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

 

 

MIN TYP

MAX

UNITS

 

 

 

 

 

 

 

 

 

DC ACCURACY (Note 1)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Resolution

 

 

 

 

 

12

 

Bits

 

 

 

 

 

 

 

 

 

Relative Accuracy (Note 2)

INL

MAX124_A

 

 

±0.5

LSB

 

 

 

 

 

 

MAX124_B/C

 

 

 

±1.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Differential Nonlinearity

DNL

No missing codes over temperature

 

 

 

±1

LSB

 

 

 

 

 

 

 

 

 

Offset Error

 

MAX124_A

±0.5

±3.0

LSB

 

 

 

 

 

 

 

 

 

MAX124_B/C

 

 

±0.5

±4.0

 

 

 

 

 

 

 

 

 

 

Gain Error (Note 3)

 

 

 

 

 

±0.5

±4.0

LSB

 

 

 

 

 

 

 

 

 

Gain Temperature Coefficient

 

 

 

 

 

±0.25

 

ppm/°C

 

 

 

 

 

 

 

 

 

DYNAMIC SPECIFICATIONS (10kHz sine-wave input, 0V to 2.500Vp-p, 73ksps, fSCLK = 2.1MHz)

 

 

Signal-to-Noise Plus

SINAD

MAX124_A/B

 

70

 

dB

Distortion Ratio

MAX124_C

 

 

71.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Total Harmonic Distortion

THD

Up to the 5th harmonic

MAX124_A/B

 

-80

dB

 

 

 

 

 

 

MAX124_C

-88

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Spurious-Free Dynamic Range

SFDR

MAX124_A/B

 

80

 

dB

 

 

 

 

 

 

MAX124_C

88

 

 

 

 

 

 

 

 

 

 

 

 

 

Small-Signal Bandwidth

 

-3dB rolloff

 

 

2.25

 

MHz

 

 

 

 

 

 

 

 

 

Full-Power Bandwidth

 

 

 

 

 

1.0

 

MHz

 

 

 

 

 

 

 

 

 

CONVERSION RATE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Conversion Time

tCONV

 

 

 

 

5.5

7.5

µs

 

 

 

 

 

 

 

 

 

Track/Hold Acquisition Time

tACQ

 

 

 

 

 

1.5

µs

 

 

 

 

 

 

 

 

 

Throughput Rate

 

fSCLK = 2.1MHz

 

 

 

73

ksps

Aperture Delay

tAPR

Figure 8

 

 

30

 

ns

 

 

 

 

 

 

 

 

 

Aperture Jitter

 

 

 

 

 

<50

 

ps

 

 

 

 

 

 

 

 

 

ANALOG INPUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input Voltage Range

 

 

 

 

 

0

VREF

V

 

 

 

 

 

 

 

 

 

Input Capacitance

 

 

 

 

 

16

 

pF

 

 

 

 

 

 

 

 

 

2 _______________________________________________________________________________________

+2.7V, Low-Power,

12-Bit Serial ADCs in 8-Pin SO

ELECTRICAL CHARACTERISTICS (continued)

(VDD = +2.7V to +3.6V (MAX1240); VDD = +2.7V to +5.25V (MAX1241); 73ksps, fSCLK = 2.1MHz (50% duty cycle); MAX1240—4.7µF capacitor at REF pin, MAX1241—external reference; VREF = 2.500V applied to REF pin; TA = TMIN to TMAX; unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

 

 

 

 

 

 

 

 

 

INTERNAL REFERENCE (MAX1240 only)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REF Output Voltage

 

TA = +25°C

2.480

2.500

2.520

V

REF Short-Circuit Current

 

 

 

 

30

mA

 

 

 

 

 

 

 

 

 

 

 

MAX1240AC/BC

 

±30

±50

 

 

 

 

 

 

 

 

 

 

REF Temperature Coefficient

 

MAX1240AE/BE

 

±30

±60

ppm/°C

 

 

 

 

 

 

 

 

 

 

 

MAX1240AM/BM

 

±30

±80

 

 

 

 

 

 

ppm/°C

 

 

 

 

 

 

 

 

 

 

MAX1240C

 

±30

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Load Regulation (Note 4)

 

0mA to 0.2mA output load

 

0.35

 

 

 

 

 

 

 

 

 

 

 

Capacitive Bypass at REF

 

 

4.7

 

 

µF

 

 

 

 

 

 

 

 

 

EXTERNAL REFERENCE (VREF

= 2.500V)

 

 

 

 

 

 

Input Voltage Range

 

 

1.00

 

VDD +

V

 

 

 

 

50mV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input Current

 

 

 

100

150

µA

 

 

 

 

 

 

 

 

Input Resistance

 

 

18

25

 

 

 

 

 

 

 

 

 

 

REF Input Current in Shutdown

 

SHDN = 0V

 

±0.01

10

µA

 

 

 

 

 

 

 

Capacitive Bypass at REF

 

 

0.1

 

 

µF

 

 

 

 

 

 

 

 

 

DIGITAL INPUTS: SCLK, CS, SHDN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCLK, CS Input High Voltage

VIH

VDD ≤ 3.6V

2.0

 

 

V

 

VDD > 3.6V (MAX1241)

3.0

 

 

 

 

 

 

 

 

 

 

 

SCLK, CS Input Low Voltage

VIL

 

 

 

0.8

V

 

 

 

 

 

 

 

 

 

SCLK, CS Input Hysteresis

VHYST

 

 

0.2

 

V

 

 

 

 

 

 

 

 

 

SCLK, CS Input Leakage

IIN

VIN = 0V or VDD

 

±0.01

±1

µA

SCLK, CS Input Capacitance

CIN

(Note 5)

 

 

15

pF

 

 

 

 

 

 

 

 

 

SHDN Input High Voltage

VSH

 

VDD - 0.4

 

 

V

 

SHDN Input Low Voltage

VSL

 

 

 

0.4

V

 

SHDN Input Current

 

SHDN = 0V or VDD

 

 

±4.0

µA

SHDN Input Mid Voltage

VSM

 

1.1

 

VDD - 1.1

V

 

SHDN Voltage, Floating

VFLT

SHDN = float

 

VDD/2

 

V

 

SHDN Max Allowed Leakage,

 

SHDN = float

 

 

±100

nA

Mid Input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DIGITAL OUTPUT: DOUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output Voltage Low

VOL

ISINK = 5mA

 

 

0.4

V

ISINK = 16mA

 

 

0.8

 

 

 

 

 

 

 

 

Output Voltage High

VOH

ISOURCE = 0.5mA

VDD - 0.5

 

 

V

 

Three-State Leakage Current

IL

CS = VDD

 

±0.01

±10

µA

 

Three-State Output Capacitance

COUT

CS = VDD (Note 5)

 

 

15

pF

MAX1240/MAX1241

_______________________________________________________________________________________ 3

MAX1240/MAX1241

+2.7V, Low-Power,

12-Bit Serial ADCs in 8-Pin SO

ELECTRICAL CHARACTERISTICS (continued)

(VDD = +2.7V to +3.6V (MAX1240); VDD = +2.7V to +5.25V (MAX1241); 73ksps, fSCLK = 2.1MHz (50% duty cycle); MAX1240—4.7µF capacitor at REF pin, MAX1241—external reference; VREF = 2.500V applied to REF pin; TA = TMIN to TMAX; unless otherwise noted.)

PARAMETERS

SYMBOL

 

CONDITIONS

 

MIN TYP

MAX

UNITS

 

 

 

 

 

 

 

 

 

POWER REQUIREMENTS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Supply Voltage

VDD

MAX1240

 

 

 

2.7

3.6

V

 

 

 

 

 

 

MAX1241

 

 

 

2.7

5.25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX1240A/B

 

VDD = 3.6V

1.4

2.0

 

 

 

 

 

 

VDD = 3.6V

 

 

 

 

 

 

MAX1240C

 

1.4

3.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Operating

MAX1241A/B

 

VDD = 3.6V

0.9

1.5

mA

Supply Current

IDD

mode

 

VDD = 5.25V

1.6

2.5

 

 

 

 

MAX1241C

 

VDD = 3.6V

0.9

2.8

 

 

 

 

 

 

 

 

 

 

 

 

 

VDD = 5.25V

1.6

3.8

 

 

 

 

 

 

 

 

 

Power-down, digital inputs

 

VDD = 3.6V

1.9

10

µA

 

 

at 0V or VDD

 

VDD = 5.25V

3.5

15

 

 

 

 

Supply Rejection

PSR

(Note 5)

 

 

 

±0.3

 

mV

 

 

 

 

 

 

 

 

 

TIMING CHARACTERISTICS (Figure 8)

(VDD = +2.7V to +3.6V (MAX1240); VDD = +2.7V to +5.25V (MAX1241); TA = TMIN to TMAX, unless otherwise noted.)

PARAMETERS

SYMBOL

CONDITIONS

MIN

TYP MAX

UNITS

 

 

 

 

 

 

 

 

 

Acquisition Time

tACQ

CS = VDD (Note 6)

 

1.5

 

 

µs

SCLK Fall to Output Data Valid

tDO

Figure 1,

 

MAX124_ _C/E

20

200

 

ns

CLOAD = 50pF

 

MAX124_ _M

20

240

 

 

 

 

 

 

CS Fall to Output Enable

tDV

Figure 1, CLOAD = 50pF

 

 

240

 

ns

CS Rise to Output Disable

tTR

Figure 2, CLOAD = 50pF

 

 

240

 

ns

SCLK Clock Frequency

fSCLK

 

 

 

0

2.1

 

MHz

 

 

 

 

 

 

 

 

 

SCLK Pulse Width High

tCH

 

 

 

200

 

 

ns

 

 

 

 

 

 

 

 

 

SCLK Pulse Width Low

tCL

 

 

 

200

 

 

ns

 

 

 

 

 

 

 

 

 

SCLK Low to CS Fall Setup Time

tCS0

 

 

 

50

 

 

ns

 

 

 

 

 

 

 

 

 

DOUT Rise to SCLK Rise (Note 5)

tSTR

 

 

 

0

 

 

ns

 

 

 

 

 

 

 

 

 

CS Pulse Width

tCS

 

 

 

240

 

 

ns

Note 1: Tested at VDD = +2.7V.

Note 2: Relative accuracy is the deviation of the analog value at any code from its theoretical value after the full-scale range and offset have been calibrated.

Note 3: MAX1240—internal reference, offset nulled; MAX1241—external reference (VREF = +2.500V), offset nulled. Note 4: External load should not change during conversion for specified accuracy.

Note 5: Guaranteed by design. Not subject to production testing. Note 6: Measured as [VFS(2.7V) - VFS(VDD(MAX)].

Note 7: To guarantee acquisition time, tACQ is the maximum time the device takes to acquire the signal, and is also the minimum time needed for the signal to be acquired.

4 _______________________________________________________________________________________

+2.7V, Low-Power,

12-Bit Serial ADCs in 8-Pin SO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+2.7V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6k

DOUT

 

 

 

 

 

 

 

DOUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6k

 

 

 

 

 

 

CLOAD = 50pF

 

 

 

 

 

 

 

 

 

 

CLOAD = 50pF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DGND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DGND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

a) High-Z to VOH and VOL to VOH

 

 

 

 

 

 

 

b) High-Z to VOL and VOH to VOL

Figure 1. Load Circuits for DOUT Enable Time

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+2.7V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6k

DOUT

 

 

 

 

 

 

 

 

 

 

 

 

DOUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6k

 

 

 

 

 

 

 

 

 

 

 

CLOAD = 50pF

 

 

 

 

 

 

 

 

 

 

CLOAD = 50pF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DGND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DGND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

a) VOH to High-Z

 

 

 

 

 

 

 

 

 

 

 

 

b) VOLto High-Z

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 2. Load Circuits for DOUT Disable Time

__________________________________________Typical Operating Characteristics

(VDD = 3.0V, VREF = 2.5V, fSCLK = 2.1MHz, CL = 20pF, TA = +25°C, unless otherwise noted.)

 

 

 

OPERATING SUPPLY CURRENT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFFSET ERROR

 

 

 

vs. SUPPLY VOLTAGE

 

 

 

SUPPLY CURRENT vs. TEMPERATURE

 

 

 

 

vs. SUPPLY VOLTAGE

 

2.0

 

 

 

 

 

 

 

 

 

 

MAX1241-D

1.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX1241-A/NEW

 

1.0

 

 

 

 

 

 

 

MAX1241-03

(mA)

1.8

 

RL =

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX1240

 

 

 

 

0.9

 

 

 

 

 

 

 

 

 

CODE =

101010100000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CURRENTSUPPLYOPERATING

1.6

 

 

 

 

 

 

 

 

1.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.4

 

 

 

MAX1240

 

 

 

 

 

 

(mA)CURRENTSUPPLY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(LSB)ERROROFFSET

0.7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.2

 

 

 

 

 

 

 

 

 

 

 

1.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX1241

 

 

 

1.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.4

 

 

 

 

 

 

 

 

 

0.6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX1241

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.2

 

 

 

 

 

 

 

 

 

 

 

 

RLOAD =

 

 

 

 

 

 

 

 

 

 

 

0.1

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

0.8

CODE = 10101010000

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

3

4

 

5

 

6

-60

-20

 

20

60

100

 

140

 

 

2.25 2.75 3.25 3.75 4.25 4.75 5.25

 

 

 

 

SUPPLY VOLTAGE (V)

 

 

 

 

 

 

 

 

TEMPERATURE (°C)

 

 

 

 

 

 

SUPPLY VOLTAGE (V)

MAX1240/MAX1241

_______________________________________________________________________________________ 5

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