Rainbow Electronics MAX11645 - Manual (Page 2)

MAX11644/MAX11645
Low-Power, 1-/2-Channel, I
2
C, 12-Bit ADCs
in Ultra-Tiny 1.9mm x 2.2mm Package
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V DD = 2.7V to 3.6V (MAX11645), V DD = 4.5V to 5.5V (MAX11644), V REF = 2.048V (MAX11645), V REF = 4.096V (MAX11644),
f SCL = 1.7MHz, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C, see Tables 1–5 for programming
notation.) (Note 1)
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.
V DD to GND ..............................................................-0.3V to +6V
AIN0, AIN1, REF to GND ..............................-0.3V to the lower of
(V DD + 0.3V) and 6V
SDA, SCL to GND.....................................................-0.3V to +6V
Maximum Current into Any Pin .........................................±50mA
Continuous Power Dissipation (T
A = +70°C)
8-Pin μMAX (derate 4.5mW/°C above +70°C) ..............362mW
12-Pin WLP (derate 16.1mW/°C above +70°C) ..........1288mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s)
μMAX only .....................................................................+300°C
Soldering Temperature (reflow) .......................................+260°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DC ACCURACY (Note 2)
Resolution 12 Bits
Relative Accuracy INL (Note 3) ±1 LSB
Differential Nonlinearity DNL No missing codes over temperature ±1 LSB
Offset Error ±4 LSB
Offset-Error Temperature
Coefficient
Relative to FSR 0.3 ppm/°C
Gain Error (Note 4) ±4 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 70 dB
Total Harmonic Distortion THD Up to the 5th harmonic -78 dB
Spurious-Free Dynamic Range SFDR 78 dB
Full-Power Bandwidth SINAD > 68dB 3 MHz
Full-Linear Bandwidth -3dB point 5 MHz
CONVERSION RATE
Internal clock 7.5
Conversion Time (Note 5) t CONV
External clock 10.6
μs
Internal clock, SCAN[1:0] = 01 51
Throughput Rate f SAMPLE
External clock 94.4
ksps
Track/Hold Acquisition Time 800 ns
Internal Clock Frequency 2.8 MHz
External clock, fast mode 60
Aperture Delay (Note 6) t AD
External clock, high-speed mode 30
ns