Datasheet

(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.)
0
5
15
10
20
25
0 21 3 4 5 6 7
SUPPLY CURRENT vs. SUPPLY VOLTAGE
max127/8-01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
50
70
110
90
130
150
-40 10-15 35 60 85
FULL POWER-DOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX127/8-04
TEMPERATURE (°C)
FULL POWER-DOWN SUPPLY CURRENT (µA)
INTERNAL
REFERENCE
EXTERNAL
REFERENCE
0.1
0.2
0.6
0.5
0.4
0.3
0.7
0.8
-40 10-15 35 60 85
CHANNEL-TO-CHANNEL GAIN-ERROR
MATCHING vs. TEMPERATURE
MAX127/8-07
TEMPERATURE (°C)
CHANNEL-TO-CHANNEL GAIN-ERROR MATCHING (LSB)
BIPOLAR MODE
UNIPOLAR MODE
5.5
5.7
6.1
5.9
6.3
6.5
-40 10-15 35 60 85
SUPPLY CURRENT vs. TEMPERATURE
MAX127/8-02
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
0.996
0.997
0.999
0.998
1.000
1.001
-40 10-15 35 60 85
NORMALIZED REFERENCE VOLTAGE
vs. TEMPERATURE
MAX127/8-05
TEMPERATURE (°C)
NORMALIZED REFERENCE VOLTAGE
-0.15
-0.10
0.05
0
-0.05
0.10
0.15
0 1638819 2457 3276 4095
INTEGRAL NONLINEARITY vs.
DIGITAL CODE
MAX127/8-08
DIGITAL CODE
INTEGRAL NONLINEARITY (LSB)
50
150
450
350
250
650
550
750
-40 10-15 35 60 85
STANDBY SUPPLY CURRENT
vs. TEMPERATURE
MAX127/8-03
TEMPERATURE (°C)
STANDBY SUPPLY CURRENT (µA)
INTERNAL
REFERENCE
EXTERNAL
REFERENCE
0
0.05
0.25
0.20
0.15
0.10
0.30
0.35
-40 10-15 35 60 85
CHANNEL-TO-CHANNEL OFFSET-ERROR
MATCHING vs. TEMPERATURE
MAX127/8-06
TEMPERATURE (°C)
CHANNEL-TO-CHANNEL OFFSET-ERROR MATCHING (LSB)
BIPOLAR MODE
UNIPOLAR MODE
-110
-100
-40
-60
-80
-20
0
0 1600800 2400 3200 4000
FFT PLOT
MAX127/8-09
FREQUENCY (Hz)
AMPLITUDE (dB)
V
DD
= 5V
f
IN
= 800Hz
f
SAMPLE
= 8kHz
MAX127/MAX128 Multirange, +5V, 12-Bit DAS with
2-Wire Serial Interface
Maxim Integrated │ 7
www.maximintegrated.com
Typical Operating Characteristics