Rainbow Electronics MAX1039 - Manual (Page 7)

MAX1036–MAX1039
2.7V to 5.5V, Low-Power, 4-/12-Channel
2-Wire Serial 8-Bit ADCs
_______________________________________________________________________________________ 7
0.980
0.985
0.990
0.995
1.000
1.005
1.010
1.015
1.020
-40 -15 10 35 60 85
INTERNAL 2.048V REFERENCE VOLTAGE
vs. TEMPERATURE
MAX1036 toc10
TEMPERATURE ( °C)
V
REF
NORMALIZED
-0.5
-0.2
-0.3
-0.4
-0.1
0
0.1
0.2
0.3
0.4
0.5
0 100 50 150 200 250 300
DIFFERENTIAL NONLINEARITY
vs. DIGITAL CODE
MAX1036 toc11
DIGITAL OUTPUT CODE
DNL (LSB)
-0.5
-0.2
-0.3
-0.4
-0.1
0
0.1
0.2
0.3
0.4
0.5
0 100 50 150 200 250 300
INTEGRAL NONLINEARITY
vs. DIGITAL CODE
MAX1036 toc12
DIGITAL OUTPUT CODE
INL (LSB)
-120
-80
-100
-40
-60
-20
0
0 100k
FFT PLOT
MAX1036 toc13
FREQUENCY (Hz)
AMPLITUDE (dBc)
40k 20k 60k 80k
f SAMPLE = 188ksps
f IN = 25kHz
0
0.3
0.2
0.1
0.4
0.5
0.6
0.7
0.8
0.9
1.0
2.5 3.5 3.0 4.0 4.5 5.0 5.5
OFFSET ERROR vs. SUPPLY VOLTAGE
MAX1036 toc14
V DD (V)
OFFSET ERROR (LSB)
V REF = 2.048V
0
0.3
0.2
0.1
0.4
0.5
0.6
0.7
0.8
0.9
1.0
-40 10 -15 35 60 85
OFFSET ERROR vs. TEMPERATURE
MAX1036 toc15
TEMPERATURE ( °C)
OFFSET ERROR (LSB)
V DD = 3.3V
V REF = 2.048V
-0.1
-0.07
-0.08
-0.09
-0.06
-0.05
-0.04
-0.03
-0.02
-0.01
0
2.5 3.5 3.0 4.0 4.5 5.0 5.5
GAIN ERROR vs. SUPPLY VOLTAGE
MAX1036 toc16
V DD (V)
GAIN ERROR (LSB)
V REF = 2.048V
Typical Operating Characteristics (continued)
(V DD = 3.3V (MAX1037/MAX1039), V DD = 5V (MAX1036/MAX1038), f SCL = 1.7MHz, external clock (33% duty cycle), f SAMPLE = 188ksps,
single ended, unipolar, T
A
= +25°C, unless otherwise noted.)