LTC2208_15 Datasheet, PDF (5/32 Pages) Linear Technology – 16-Bit, 130Msps ADC

LTC2208
COMMON MODE BIAS CHARACTERISTICS The l denotes the specifications which apply over
the full operating temperature range, otherwise specifications are at T_A = 25°C. (Note 4)
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
2
Ω
DIGITAL INPUTS AND DIGITAL OUTPUTS The l denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at T_A = 25°C. (Note 4)
SYMBOL
PARAMETER
ENCODE INPUTS (ENC⁺, ENC^–)
CONDITIONS
MIN
TYP
MAX UNITS
V_ID
Differential Input Voltage
(Note 7)
l 0.2
V
V_ICM
Common Mode Input Voltage
Internally Set
Externally Set (Note 7)
1.6
V
1.2
3.0
V
R_IN
Input Resistance
(See Figure 2)
6
kΩ
C_IN
Input Capacitance
LOGIC INPUTS (DITH, PGA, SHDN, RAND)
(Note 7)
3
pF
V_IH
High Level Input Voltage
V_IL
Low Level Input Voltage
I_IN
Digital Input Current
C_IN
Digital Input Capacitance
LOGIC OUTPUTS (CMOS MODE)
V_DD = 3.3V
V_DD = 3.3V
V_IN = 0V to V_DD
(Note 7)
l
2
V
l
0.8
V
l
±10
μA
1.5
pF
OV_DD = 3.3V
V_OH
High Level Output Voltage
V_DD = 3.3V
I_O = –10μA
3.299
V
I_O = –200μA l
3.1
3.29
V
V_OL
Low Level Output Voltage
V_DD = 3.3V
I_O = 160μA
I_O = 1.6mA l
0.01
V
0.10
0.4
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
LOGIC OUTPUTS (LVDS MODE)
STANDARD LVDS
V_OD
Differential Output Voltage
100Ω Differential Load
l 247
350
454
mV
V_OS
Output Common Mode Voltage
100Ω Differential Load
l 1.125
1.2
1.375
V
LOW POWER LVDS
V_OD
Differential Ouptut Voltage
100Ω Differential Load
l
125
175
250
mV
V_OS
Output Common Mode Voltage
100Ω Differential Load
l 1.125
1.2
1.375
V
2208fc
5