Manualshelf

Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsData collecting ICsData acquisition IC - AD converter (ADC) External , Internal uMAX 8
12345678910
MAX11646/MAX11647
Low-Power, 1-/2-Channel, I
2
C, 10-Bit ADCs
in Ultra-Tiny 1.9mm x 2.2mm Package
6 _______________________________________________________________________________________
Typical Operating Characteristics
(V
DD
= 3.3V (MAX11647), V
DD
= 5V (MAX11646), f
SCL
= 1.7MHz, external clock, f
SAMPLE
= 94.4ksps, single-ended, unipolar,
T
A
= +25°C, unless otherwise noted.)
-0.3
-0.1
-0.2
0.1
0
0.2
0.3
0 1000
DIFFERENTIAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
MAX11646 toc01
DIGITAL OUTPUT CODE
DNL (LSB)
400200 600 800
-0.5
-0.2
-0.3
-0.4
-0.1
0
0.1
0.2
0.3
0.4
0.5
0 400200 600 800 1000
INTEGRAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
MAX11646 toc02
DIGITAL OUTPUT CODE
INL (LSB)
-160
-140
-120
-100
-80
-60
-40
-20
0
0 10k 20k 30k 40k 50k
FFT PLOT
MAX11646 toc03
FREQUENCY (Hz)
AMPLITUDE (dBc)
f
SAMPLE
= 94.4ksps
f
IN
= 10kHz
300
400
350
500
450
600
550
650
750
700
800
-40 -10 5-25 20 35 50 65 80
SUPPLY CURRENT
vs. TEMPERATURE
MAX11646 toc04
TEMPERATURE (°C)
SUPPLY CURRENT (μA)
INTERNAL REFERENCE
MAX11646
MAX11646
MAX11647
MAX11647
INTERNAL REFERENCE
EXTERNAL REFERENCE
EXTERNAL REFERENCE
SETUP BYTE
EXT REF: 10111011
INT REF: 11011011
0
0.2
0.1
0.4
0.3
0.5
0.6
2.7 5.2
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX11646 toc05
SUPPLY VOLTAGE (V)
I
DD
(μA)
3.73.2 4.2 4.7
SDA = SCL = V
DD
0
0.10
0.05
0.20
0.15
0.30
0.25
0.35
0.45
0.40
0.50
-40 -10 5
-25
20 35 50 65 80
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX11646 toc06
TEMPERATURE (°C)
SUPPLY CURRENT (μA)
MAX11647
MAX11646
0
100
200
300
400
500
600
700
800
900
1000
0 20406080100
AVERAGE SUPPLY CURRENT
vs. CONVERSION RATE (EXTERNAL CLOCK)
MAX11646 toc07
CONVERSION RATE (ksps)
AVERAGE I
DD
(μA)
0
A) INTERNAL REFERENCE ALWAYS ON
B) EXTERNAL REFERENCE
B
A