Digitally Controlled Analog I/O Processor
15
MX839 PRELIMINARY INFORMATION
6.1.3 Operating Characteristics
For the following conditions unless otherwise specified:
AV = DV = V = 3.3V to 5.0V, T = 25°C
DD
DD
DD
AMB
Notes
Min.
Typ.
Max.
Units
DC Parameters
Supply Voltage
3.0
5.0
5.5
V
Supply Difference (AV - DV
)
-100
100
mV
DD
DD
I
DD
V
DD
= 5V
powersaved
250
4.5
400
7.0
PA
not powersaved
mA
V
DD
= 3.3V
powersaved
150
2.5
250
4.0
PA
not powersaved
mA
'C-BUS' Interface
Input Logic '1'
70%
DV
DV
DD
Input Logic '0'
30%
DD
Input Leakage Current (Logic '1' and '0')
Input Capacitance
-1.0
1.0
7.5
µA
pF
Output Logic '1' (I = 120µA)
90%
DV
OH
DD
DD
Output Logic '0' (I = 360µA)
10%
DV
OL
DACs and Output Buffers (Guaranteed monotonic)
Un-loaded Performance
Resolution
8 or 10
Bits
Internal DAC Settling Time (to 0.5 lsb)
Integral non-linearity
10.0
µs
Figure 4
Figure 3
7
6
8 Bit mode
3.0
5.0
LSBs
LSBs
10 Bit mode
Differential non-linearity
8 Bit mode
1.0
1.0
LSBs
LSBs
V/µs
:
10 Bit mode
Buffer Slew Rate (with 20pF load)
Buffer Output Resistance
TBD
200
20
Zero Error (For 0000
code input)
-20
0
mV
HEX
RMS Output Noise Voltage
1
2
10
µV
Loaded Performance
Output voltage with 5k: resistive load to ground
Digital code = 3FF
3
3
3
4.79
V
V
V
HEX
Digital code = 200
, 10 Bit
2.495
2.495
HEX
Digital code = 80
, 8 Bit
HEX
Output voltage with 5k: resistive load to V
DD
Digital code = 000
3
4
200
mV
HEX
Minimum Resistive Load
1.0
k:
© 1998 MXxCOM Inc.
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Doc. # 20480164.002
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