MAX127 Datasheet, PDF (3/16 Pages) Maxim Integrated Products – Multirange, +5V, 12-Bit DAS with 2-Wire Serial Interface

Multirange, +5V, 12-Bit DAS with
2-Wire Serial Interface
ELECTRICAL CHARACTERISTICS (continued)
(V_DD = +5V ±5%; unipolar/bipolar range; external reference mode, V_REF = 4.096V; 4.7µF at REF pin; external clock, f_CLK = 400kHz;
T_A = T_MIN to T_MAX; unless otherwise noted. Typical values are at T_A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
ANALOG INPUT
Track/Hold Acquisition Time
Small-Signal Bandwidth
Input Voltage Range
Input Current
Input Resistance
Input Capacitance
INTERNAL REFERENCE
V_IN
I_IN
∆V_IN
∆I_IN
-3dB
rolloff
±10V or ±V_REF range
±5V or ±V_REF/2 range
0 to 10V or 0 to V_REF range
0 to 5V or 0 to V_REF/2 range
Unipolar,
Table 3
MAX127
MAX128
Bipolar,
Table 3
MAX127
MAX128
Unipolar
Bipolar
Unipolar
Bipolar
(Note 4)
MAX127
MAX128
MAX127
MAX128
0 to 10V range
0 to 5V range
±10V range
±5V range
±V_REF range
±V_REF/2 range
5
2.5
2.5
1.25
0
0
0
0
-10
-5
-V_REF
-V_REF/2
-10
-10
-10
0.1
-1200
-600
-1200
-600
21
16
3
10
5
V_REF
V_REF/2
10
5
V_REF
V_REF/2
720
360
10
720
360
10
10
40
µs
MHz
V
µA
kΩ
pF
REFOUT Voltage
REFOUT Tempco
Output Short-Circuit Current
Load Regulation (Note 5)
Capacitive Bypass at REF
REFADJ Output Voltage
REFADJ Adjustment Range
Buffer Voltage Gain
V_REF
TC V_REF
T_A = +25°C
MAX127_C/MAX128_C
MAX127_E/MAX128_E
0 to 0.5mA output current
Figure 12
4.076
4.7
2.465
4.096
±15
±30
2.500
±1.5
1.638
4.116
V
ppm/°C
30
mA
10
mV
µF
2.535
V
%
V/V
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