MAX198ACAI Просмотр технического описания (PDF) - Maxim Integrated
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MAX198ACAI Datasheet PDF : 16 Pages
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Multirange, Single +5V, 12-Bit DAS
with 12-Bit Bus Interface
Table 2. Control-Byte Format
D7 (MSB)
D6
D5
D4
D3
D2
D1
D0 (LSB)
PD1
PD0
ACQMOD
RNG
BIP
A2
A1
A0
BIT
7, 6
5
4
3
2, 1, 0
NAME
PD1, PD0
ACQMOD
RNG
BIP
A2, A1, A0
DESCRIPTION
These two bits select the clock and power-down modes (Table 4).
0 = internally controlled acquisition (6 clock cycles), 1 = externally controlled acquisition
Selects the full-scale voltage magnitude at the input (Table 3).
Selects unipolar or bipolar conversion mode (Table 3).
These are address bits for the input mux to select the “on” channel (Table 5).
Table 3. Range and Polarity Selection
BIP
RNG
INPUT RANGE (V)
(MAX196)
0
0
0 to 5
0
1
0 to 10
1
0
±5
1
1
±10
INPUT RANGE (V)
(MAX198)
0 to VREF/2
0 to VREF
±VREF/2
±VREF
Table 4. Clock and Power-Down Selection
PD1 PD0
DEVICE MODE
0 0 Normal Operation / External Clock Mode
0 1 Normal Operation / Internal Clock Mode
1
0
Standby Power-Down (STBYPD); clock mode
is unaffected
1
1
Full Power-Down (FULLPD); clock mode is
unaffected
Table 5. Channel Selection
A2
A1
A0
CH0
CH1
CH2
CH3
CH4
CH5
0
0
0
∗
0
0
1
∗
0
1
0
∗
0
1
1
∗
1
0
0
∗
1
0
1
∗
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