參數(shù)資料
型號: LTC2442CG
廠商: LINEAR TECHNOLOGY CORP
元件分類: ADC
英文描述: 24-Bit High Speed 4-Channel Delta-Sigma ADC with Integrated Amplifi er
中文描述: 4-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO36
封裝: 5.30 MM, PLASTIC, SSOP-36
文件頁數(shù): 3/32頁
文件大小: 392K
代理商: LTC2442CG
LTC2442
3
2442f
SYMBOL
SEL
+
PARAMETER
Absolute/Common Mode SEL
+
Voltage
CONDITIONS
SEL
+
is the Positive Selected
Input Channel, see Table 3
SEL
is the Negative Selected
Input Channel, see Table 3
MIN
TYP
MAX
V
CC
+ 0.3
UNITS
GND – 0.3
V
SEL
Absolute/Common Mode SEL
Voltage
GND – 0.3
V
CC
+ 0.3
V
V
IN
Input Differential Voltage Range
(SEL
+
– SEL
)
Absolute/Common Mode REF
+
Voltage
Absolute/Common Mode REF
Voltage
Reference Differential Voltage Range
(REF
+
– REF
)
ADCINA Sampling Capacitance
ADCINB Sampling Capacitance
REF
+
Sampling Capacitance
REF
Sampling Capacitance
Leakage Current, Inputs and Reference
–V
REF
/2
V
REF
/2
V
REF
+
REF
V
REF
0.1
GND
0.1
V
CC
V
V
V
V
CC
– 0.1
V
CC
C
S(ADCINA)
C
S(ADCINB)
C
S(REF
+
)
C
S(REF
)
I
DC_LEAK(SEL
+
, SEL
,
REF
+
, REF
)
t
OPEN
QIRR
2
2
2
2
1
pF
pF
pF
pF
nA
CS = V
CC
, SEL
+
= GND, SEL
=
GND, REF
+
= 5V, REF
= GND
–15
15
MUX Break-Before-Make
MUX Off Isolation
50
120
ns
dB
V
IN
= 2V
P-P
DC to 1.8MHz
temperature range, otherwise specifications are at T
A
= 25°C. (Notes 3, 15)
The
denotes the specifications which apply over the full operating
A ALOG I PUT A
D REFERE CE
U
U
temperature range, otherwise specifications are at T
A
= 25°C. (Notes 3, 4, 15)
The
denotes the specifications which apply over the full operating
ELECTRICAL CHARACTERISTICS
PARAMETER
Negative Full-Scale Error
CONDITIONS
REF
+
= 5V, REF
= GND, SEL
+
= 1.25V, SEL
= 3.75V
REF
+
= 2.5V, REF
= GND, SEL
+
= 0.625V, SEL
= 1.875V
2.5V ≤ REF
+
≤ V
CC
, REF
= GND,
SEL
+
= 0.25 REF
+
, SEL
= 0.75 REF
+
5V ≤ V
CC
≤ 5.5V, REF
+
= 2.5V, REF
= GND, V
INCM
= 1.25V (Note 6)
5V ≤ V
CC
≤ 5.5V, REF
+
= 5V, REF
= GND, V
INCM
= 2.5V (Note 6)
REF
+
= 2.5V, REF
= GND, V
INCM
= 1.25V (Note 6)
2.5V ≤ REF
+
≤ V
CC
, REF
= GND,
GND ≤ SEL
= SEL
+
≤ V
CC
MIN
TYP
10
10
0.2
MAX
50
50
UNITS
ppm of V
REF
ppm of V
REF
ppm of V
REF
/°C
Negative Full-Scale Error Drift
Total Unadjusted Error
12
12
12
120
ppm of V
REF
ppm of V
REF
ppm of V
REF
Input Common Mode Rejection DC
dB
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