Analogue Control Interface
FX839
Operating Characteristics
For the following conditions unless otherwise specified:
AV = DV = V = 3.3V to 5.0V, Tamb = - 40°C to +85°C.
DD
DD
DD
Notes
Min.
Typ.
Max.
Units
DC Parameters
Supply Voltage (DV
)
)
3.0
3.0
-100
-
-
-
-
5.0
5.0
-
250
4.5
150
2.5
5.5
5.5
100
400
7.0
V
V
DD
Supply Voltage (AV
DD
Supply Difference (AV - DV
)
DD
= 5V
= 5V
= 3.3V
= 3.3V
mV
µA
mA
µA
mA
DD
I
I
I
I
(powersaved)
(not powersaved)
(powersaved)
V
V
V
V
DD
DD
DD
DD
DD
DD
DD
DD
250
4.0
(not powersaved)
'C-BUS' Interface
Input Logic '1'
Input Logic '0'
Input Leakage Current (Logic '1' and '0')
Input Capacitance
70%
-1.0
DV
DV
µA
pF
DD
DD
30%
1.0
7.5
Output Logic '1' (I = 120µA)
90%
DV
DV
OH
DD
DD
Output Logic '0' (I = 360µA)
10%
OL
DACs and Output Buffers (Guaranteed monotonic)
(a) Un-loaded Performance
Resolution
8 or 10
Bits
Internal DAC Settling Time (to 0.5 lsb)
Integral non-linearity (8-Bit mode)
Integral non-linearity (10-Bit mode)
Differential non-linearity (8-Bit mode)
Differential non-linearity (10-Bit mode)
Buffer Slew Rate (with 20pF load)
Buffer Output Resistance (open loop)
Zero Error
10.0
3.0
5.0
1.0
1.0
TBD
200
20
µs
6
6
5
5
LSBs
LSBs
LSBs
LSBs
V/µs
Ω
-20
0
mV
RMS Output Noise Voltage
10
µV
(Low Pass Filter of 30kHz bandwidth)
(b) Loaded Performance
1
Output voltage with resistive load to ground
(Digital code = 3FF
)
4.79
V
V
HEX
Output voltage with resistive load to ground
(Digital code = 200 , 10 Bit) or
3
3
2.495
HEX
(Digital code = 80
, 8 Bit)
HEX
Output voltage with resistive load to V
DD
(Digital code = 000
)
200
mV
HEX
Minimum Resistive Load
1.0
kΩ
Consumer Microcircuits Limited
17
1997
D/839/4
CMLMICRO [ CML MICROCIRCUITS ]
