MAX1240_10 datasheet(2/15 Pages) MAXIM

Part #	MAX1240

Description	2.7V, Low-Power, 12-Bit Serial ADCs in 8-Pin SO

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Manufacturer	MAXIM [Maxim Integrated Products]

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+2.7V, Low-Power,

12-Bit Serial ADCs in 8-Pin SO

2

_______________________________________________________________________________________

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.)

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, 10s) ................................+300°C

Soldering Temperature (reflow)

PDIP, SO .....................................................................+260°C

CDIP ...........................................................................+250°C

ABSOLUTE MAXIMUM RATINGS

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.

71.5

MAX124_C

Input Voltage Range

0VREF

V

Input Capacitance

Aperture Jitter

<50

ps

16

pF

MAX124_A

MAX124_B/C

Aperture Delay

tAPR

30

ns

Figure 8

Track/Hold Acquisition Time

tACQ

1.5

µs

Throughput Rate

73

ksps

fSCLK = 2.1MHz

Conversion Time

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

±0.5

±3.0

Offset Error

LSB

Differential Nonlinearity

DNL

±1

LSB

±1.0

Gain Temperature Coefficient

±0.5

±4.0

Gain Error (Note 3)

LSB

±0.5

±4.0

Resolution

12

Bits

Relative Accuracy (Note 2)

INL

±0.5

LSB

tCONV

5.5

7.5

µs

Small-Signal Bandwidth

Signal-to-Noise Plus

Distortion Ratio

SINAD

70

dB

2.25

MHz

Full-Power Bandwidth

Total Harmonic Distortion

THD

-80

dB

1.0

-3dB rolloff

MHz

CONDITIONS

Spurious-Free Dynamic Range

ppm/°C

No missing codes over temperature

MAX124_B/C

±0.25

SFDR

MAX124_A/B

80

Up to the 5th harmonic

dB

MAX124_A/B

MAX124_A

MAX124_A/B

MAX124_C

-88

MAX124_C

88

ANALOG INPUT

CONVERSION RATE

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

DC ACCURACY (Note 1)

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MAX1240 Datasheet(PDF) 2 Page - Maxim Integrated Products

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