Linear Technology LTC2430 Manual page 4

CO VERTER CHARACTERISTICS
temperature range, otherwise specifications are at T
PARAMETER
Input Common Mode Rejection DC
Input Common Mode Rejection
60Hz ±2%
Input Common Mode Rejection
50Hz ±2%
Input Normal Mode Rejection
60Hz ±2%
Input Normal Mode Rejection
50Hz ±2%
Reference Common Mode
Rejection DC
Power Supply Rejection, DC
Power Supply Rejection, 60Hz ±2% REF
Power Supply Rejection, 50Hz ±2% REF
A ALOG I PUT A D REFERE CE
temperature range, otherwise specifications are at T
SYMBOL PARAMETER
+
IN Absolute/Common Mode IN
–
IN Absolute/Common Mode IN
V Input Differential Voltage Range
IN
+ –
(IN – IN )
+
REF Absolute/Common Mode REF
–
REF Absolute/Common Mode REF
V Reference Differential Voltage Range
REF
+ –
(REF – REF
+ +
C (IN ) IN Sampling Capacitance
S
– –
C (IN ) IN Sampling Capacitance
S
+ +
C (REF ) REF Sampling Capacitance
S
– –
C (REF ) REF Sampling Capacitance
S
+ +
I (IN ) IN DC Leakage Current
DC_LEAK
– –
I (IN ) IN DC Leakage Current
DC_LEAK
+ +
I (REF ) REF DC Leakage Current
DC_LEAK
– –
I (REF ) REF DC Leakage Current
DC_LEAK
= 25°C. (Notes 3, 4)
A
CONDITIONS
2.5V ≤ REF ≤ V
+ –
, REF = GND,
CC
GND ≤ IN ≤ 5V (Note 5)
– +
= IN
2.5V ≤ REF + ≤ V –
, REF = GND,
CC
GND ≤ IN ≤ 5V, (Notes 5, 7)
– +
= IN
2.5V ≤ REF ≤ V
+ –
, REF = GND,
CC
GND ≤ IN – + ≤ 5V, (Notes 5, 8)
= IN
(Notes 5, 7)
(Notes 5, 8)
2.5V ≤ REF ≤ V , GND ≤ REF
+
CC
– +
V = 2.5V, IN = IN = GND (Note 5)
REF
+ –
REF = 2.5V, REF = GND, IN
+ –
= 2.5V, REF = GND, IN
+ –
= 2.5V, REF = GND, IN
= 25°C. (Note 3)
A
CONDITIONS
+
Voltage
–
Voltage
+
Voltage
–
Voltage
)
CS = V
CS = V
CS = V
CS = V
The denotes specifications which apply over the full operating
≤ 2.5V,
–
– +
= IN = GND
– +
= IN = GND, (Note 7)
– +
= IN = GND, (Note 8)
The denotes specifications which apply over the full operating
+
, IN = GND
CC
–
, IN = V
CC CC
+
, REF = V
CC CC
–
, REF = GND
CC
LTC2430/LTC2431
MIN TYP MAX
110 120
140
140
110 140
110 140
130 140
110
120
120
MIN TYP MAX
GND – 0.3V V + 0.3V
CC
GND – 0.3V V + 0.3V
CC
– V /2 V
REF REF
0.1 V
CC
GND V – 0.1V
CC
0.1 V
CC
1.5
1.5
1.5
1.5
–10 1 10
–10 1 10
–10 1 10
–10 1 10
UNITS
dB
dB
dB
dB
dB
dB
dB
dB
dB
UNITS
V
V
/2 V
V
V
V
pF
pF
pF
pF
nA
nA
nA
nA
24301f
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