Datasheet
LTC2205-14
5
220514fb
COMMON MODE BIAS CHARACTERISTICS
The ● denotes the specifi cations which apply over
the full operating temperature range, otherwise specifi cations are at T
A
= 25°C. (Note 4)
POWER REQUIREMENTS
DIGITAL INPUTS AND DIGITAL OUTPUTS
The ● denotes the specifi cations which apply over the
full operating temperature range, otherwise specifi cations are at T
A
= 25°C. (Note 4)
The ● denotes the specifi cations which apply over the full operating temperature
range, otherwise specifi cations are at T
A
= 25°C. (Note 4)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
DD
Analog Supply Voltage 3.315 3.3 3.465 V
P
SHDN
Shutdown Power SHDN = V
DD
0.2 mW
OV
DD
Output Supply Voltage
l
0.5 3.3 3.6 V
I
VDD
Analog Supply Current
l
181 212 mA
P
DIS
Power Dissipation
l
597 700 mW
PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CM
Output Voltage I
OUT
= 0 1.15 1.25 1.35 V
V
CM
Output Tempco I
OUT
= 0 ±40
ppm/°C
V
CM
Line Regulation 3.135V ≤ V
DD
≤ 3.465V 1 mV/V
V
CM
Output Resistance 1mA ≤ | I
OUT
| ≤ 1mA 1
Ω
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
ENCODE INPUTS (ENC
+
, ENC
–
)
V
ID
Differential Input Voltage (Note 7)
l
0.2 V
V
ICM
Common Mode Input Voltage Internally Set
Externally Set (Note 7) 1.2
1.6
3.0
V
V
R
IN
Input Resistance (See Figure 2) 6 kΩ
C
IN
Input Capacitance (Note 7) 3 pF
LOGIC INPUTS (DITH, PGA, SHDN, RAND)
V
IH
High Level Input Voltage V
DD
= 3.3V
l
2V
V
IL
Low Level Input Voltage V
DD
= 3.3V
l
0.8 V
I
IN
Digital Input Current V
IN
= 0V to V
DD
l
±10 μA
C
IN
Digital Input Capacitance (Note 7) 1.5 pF
LOGIC OUTPUTS
OV
DD
= 3.3V
V
OH
High Level Output Voltage V
DD
= 3.3V I
O
= –10μA
I
O
= –200μA l 3.1
3.299
3.29
V
V
V
OL
Low Level Output Voltage V
DD
= 3.3V I
O
= –160μA
I
O
= –1.6μA l
0.01
0.10 0.4
V
V
I
SOURCE
Output Source Current V
OUT
= 0V –50 mA
I
SINK
Output Sink Current V
OUT
= 3.3V 50 mA
OV
DD
= 2.5V
V
OH
High Level Output Voltage V
DD
= 3.3V I
O
= –200μA 2.49 V
V
OL
Low Level Output Voltage V
DD
= 3.3V I
O
= 1.60mA 0.1 V
OV
DD
= 1.8V
V
OH
High Level Output Voltage V
DD
= 3.3V I
O
= –200μA 1.79 V
V
OL
Low Level Output Voltage V
DD
= 3.3V I
O
= 1.60mA 0.1 V