MAX145ACPA View Datasheet(PDF) - Maxim Integrated

Part Name

Description

Manufacturer

MAX145ACPA

+2.7V, Low-Power, 2-Channel, 108ksps, Serial 12-Bit ADCs in 8-Pin µMAX

Maxim Integrated 

+2.7V, Low-Power, 2-Channel, 108ksps,

Serial 12-Bit ADCs in 8-Pin µMAX

ABSOLUTE MAXIMUM RATINGS

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

CH0, CH1 (CH+, CH-) 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 Sink Current ........................................................... 25mA

Continuous Power Dissipation (TA = +70°C)

µMAX (derate 4.1mW/°C above +70°C) .................... 330mW

Plastic DIP (derate 9.09mW/°C above +70°C) ............727mW

CERDIP (derate 8.00mW/°C above +70°C) . .............. 640mW

Operating Temperature Ranges (TA)

MAX144/MAX145_C_A .......................................0°C to +70°C

MAX144/MAX145_E_A. ...................................-40°C to +85°C

MAX144/MAX145_M_A ................................ -55°C to +125°C

Storage Temperature Range .............................-65°C to +150°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

(VDD = +2.7V to +5.25V, VREF = 2.5V, 0.1µF capacitor at REF, fSCLK = 2.17MHz, 16 clocks/conversion cycle (108ksps),

CH- = GND for MAX145, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX UNITS

DC ACCURACY (Note 1)

Resolution

RES

12

Bits

Relative Accuracy (Note 2)

MAX14_A

INL

MAX14_B

±0.5

LSB

±1

Differential Nonlinearity

DNL No missing codes over temperature

±0.75 LSB

Offset Error

±3

LSB

Gain Error

Gain Temperature Coefficient

(Note 3)

±0.8

±3

LSB

ppm/°C

Channel-to-Channel Offset

Matching

±0.05

LSB

Channel-to-Channel Gain

Matching

±0.05

LSB

DYNAMIC SPECIFICATIONS (fIN(sine-wave) = 10kHz, VIN = 2.5Vp-p, 108ksps, fSCLK = 2.17MHz, CH- = GND for MAX145)

Signal-to-Noise Plus

Distortion Ratio

SINAD

70

dB

Total Harmonic Distortion

(including 5th-order harmonic)

THD

Spurious-Free Dynamic Range SFDR

80

Channel-to-Channel Crosstalk

Small-Signal Bandwidth

fIN = 65kHz, VIN = 2.5Vp-p (Note 4)

-3dB rolloff

Full-Power Bandwidth

CONVERSION RATE

Conversion Time (Note 5)

tCONV

External clock, fSCLK = 2.17MHz,

16 clocks/conversion cycle

7.4

Internal clock

5

T/H Acquisition Time

Aperture Delay

tACQ

Aperture Jitter

Serial Clock Frequency

External clock mode

0.1

fSCLK Internal clock mode, for data transfer only

0

-80

dB

dB

-85

dB

2.25

MHz

1.0

MHz

µs

7

2.5

µs

25

ns

<50

ps

2.17

MHz

5

2 _______________________________________________________________________________________

Share Link: