MAX127 Datasheet, PDF (7/16 Pages) Maxim Integrated Products – Multirange, +5V, 12-Bit DAS with 2-Wire Serial Interface

Multirange, +5V, 12-Bit DAS with
2-Wire Serial Interface
Typical Operating Characteristics
(V_DD = +5V, external reference mode, V_REF = 4.096V; 4.7µF at REF; external clock, f_CLK = 400kHz; T_A = +25°C; unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
25
20
15
10
5
0
01234567
SUPPLY VOLTAGE (V)
FULL POWER-DOWN SUPPLY CURRENT
vs. TEMPERATURE
150
130
EXTERNAL
REFERENCE
110
90
INTERNAL
70
REFERENCE
50
-40 -15
10
35
60
85
TEMPERATURE (°C)
SUPPLY CURRENT vs. TEMPERATURE
6.5
6.3
6.1
5.9
5.7
5.5
-40 -15
10
35
60
85
TEMPERATURE (°C)
NORMALIZED REFERENCE VOLTAGE
vs. TEMPERATURE
1.001
1.000
0.999
0.998
0.997
0.996
-40 -15 10
35
60
85
TEMPERATURE (°C)
STANDBY SUPPLY CURRENT
vs. TEMPERATURE
750
650
INTERNAL
550
REFERENCE
450
350
250
EXTERNAL
REFERENCE
150
50
-40 -15
10
35
60
85
TEMPERATURE (°C)
CHANNEL-TO-CHANNEL OFFSET-ERROR
MATCHING vs. TEMPERATURE
0.35
BIPOLAR MODE
0.30
0.25
0.20
0.15
0.10
UNIPOLAR MODE
0.05
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
CHANNEL-TO-CHANNEL GAIN-ERROR
MATCHING vs. TEMPERATURE
0.8
0.7
0.6
UNIPOLAR MODE
0.5
0.4
0.3
BIPOLAR MODE
0.2
0.1
-40 -15
10
35
60
85
TEMPERATURE (°C)
INTEGRAL NONLINEARITY vs.
DIGITAL CODE
0.15
0.10
0.05
0
-0.05
-0.10
-0.15
0
819 1638 2457 3276 4095
DIGITAL CODE
0
-20
-40
-60
-80
-100
-110
0
FFT PLOT
V_DD = 5V
f_IN = 800Hz
f_SAMPLE = 8kHz
800 1600 2400 3200 4000
FREQUENCY (Hz)
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