Rainbow-electronics MAX1139 Bedienungsanleitung PDF herunterladen (Seite 2)

MAX1136–MAX1139

2.7V to 3.6V and 4.5V to 5.5V, Low-Power,

4-/12-Channel, 2-Wire Serial 10-Bit ADCs

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

= 2.7V to 3.6V (MAX1137/MAX1139), V

= 4.5V to 5.5V (MAX1136/MAX1138), V

REF

= 2.048V (MAX1137/MAX1139), V

REF

4.096V (MAX1136/MAX1138), C

REF

= 0.1µF, f

SCL

= 1.7MHz, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

= +25°C. See Tables 1–5 for programming notation.)

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.

to GND..............................................................-0.3V to +6V

AIN0–AIN11,

REF to GND............-0.3V to the lower of (V

+ 0.3V) and 6V

SDA, SCL to GND.....................................................-0.3V to +6V

Maximum Current Into Any Pin .........................................±50mA

Continuous Power Dissipation (T

= +70°C)

8-Pin µMAX (derate 4.5mW/°C above +70°C) .............362mW

16-Pin QSOP (derate 8.3mW/°C above +70°C)........666.7mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature......................................................+150°C

Storage Temperature Range .............................-60°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

UNITS

DC ACCURACY (Note 1)

Resolution 10 Bits

Relative Accuracy INL (Note 2) ±1 LSB

Differential Nonlinearity DNL No missing codes over temperature ±1 LSB

Offset Error ±1 LSB

Offset-Error Temperature

Coefficient

Relative to FSR 0.3

ppm/°C

Gain Error (Note 3) ±1 LSB

Gain-Temperature Coefficient Relative to FSR 0.3

ppm/°C

Channel-to-Channel Offset

Matching

±0.1

LSB

Channel-to-Channel Gain

Matching

±0.1

LSB

DYNAMIC PERFORMANCE (f

IN(SINE-WAVE)

= 10kHz, V

IN(P-P)

= V

REF

, f

SAMPLE

= 94.4ksps)

Signal-to-Noise Plus Distortion

SINAD

60 dB

Total Harmonic Distortion THD Up to the 5th harmonic -70 dB

Spurious Free Dynamic Range SFDR 70 dB

Full-Power Bandwidth SINAD > 57dB 3.0

MHz

Full-Linear Bandwidth -3dB point 5.0

MHz

CONVERSION RATE

Internal clock 6.8

Conversion Time (Note 4)

CONV

External clock

10.6

µs

Internal clock, SCAN[1:0] = 01 53

Internal clock, SCAN[1:0] = 00

CS[3:0] = 1011 (MAX1138/MAX1139)

Throughput Rate

SAMPLE

External clock

94.4

ksps

Track/Hold Acquisition Time

800

1 2 3 4 5 6 7 ... 21 22

MAX1136–MAX1139 1

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