參數(shù)資料
型號(hào): LTC2492IDE
廠商: LINEAR TECHNOLOGY CORP
元件分類: ADC
英文描述: 4-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO14
封裝: 4 X 3 MM, PLASTIC, MO-229WGED-3, QFN-14
文件頁(yè)數(shù): 31/36頁(yè)
文件大?。?/td> 652K
代理商: LTC2492IDE
LTC2492
2492fa
DigiTal inpuTs anD DigiTal ouTpuTs The
denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3)
analog inpuT anD reFerence The
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 3)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IN+
Absolute/Common Mode IN+ Voltage
(IN+ Corresponds to the Selected Positive Input Channel)
GND – 0.3V
VCC + 0.3V
V
IN
Absolute/Common Mode INVoltage
(INCorresponds to the Selected Negative Input Channel)
GND – 0.3V
VCC + 0.3V
V
VIN
Input Differential Voltage Range (IN+ – IN)
–FS
+FS
V
FS
Full Scale of the Differential Input (IN+ – IN)
0.5VREF
V
LSB
Least Significant Bit of the Output Code
FS/224
REF+
Absolute/Common Mode REF+ Voltage
0.1
VCC
V
REF
Absolute/Common Mode REFVoltage
GND
REF+ – 0.1V
V
VREF
Reference Voltage Range (REF+ – REF)
0.1
VCC
V
CS(IN+)
IN+ Sampling Capacitance
11
pF
CS(IN)
INSampling Capacitance
11
pF
CS(VREF)
VREF Sampling Capacitance
11
pF
IDC_LEAk(IN+)
IN+ DC Leakage Current
Sleep Mode, IN+ = GND
–10
1
10
nA
IDC_LEAk(IN–)
INDC Leakage Current
Sleep Mode, IN= GND
–10
1
10
nA
IDC_LEAk(REF+) REF+ DC Leakage Current
Sleep Mode, REF+ = VCC
–100
1
100
nA
IDC_LEAk(REF–) REFDC Leakage Current
Sleep Mode, REF= GND
–100
1
100
nA
tOPEN
MUX Break-Before-Make
50
ns
QIRR
MUX Off Isolation
VIN = 2VP-P DC to 1.8MHz
120
dB
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIH
High Level Input Voltage (`C`S, FO, SDI)
2.7V ≤ VCC ≤ 5.5V
VCC – 0.5
V
VIL
Low Level Input Voltage (`C`S, FO, SDI)
2.7V ≤ VCC ≤ 5.5V
0.5
V
VIH
High Level Input Voltage (SCk)
2.7V ≤ VCC ≤ 5.5V (Notes 10, 15)
VCC – 0.5
V
VIL
Low Level Input Voltage (SCk)
2.7V ≤ VCC ≤ 5.5V (Notes 10, 15)
0.5
V
IIN
Digital Input Current (`C`S, FO, SDI)
0V ≤ VIN ≤ VCC
–10
10
A
IIN
Digital Input Current (SCk)
0V ≤ VIN ≤ VCC (Notes 10, 15)
–10
10
A
CIN
Digital Input Capacitance (`C`S, FO, SDI)
10
pF
CIN
Digital Input Capacitance (SCk)
(Notes 10, 15)
10
pF
VOH
High Level Output Voltage (SDO)
IO = –800A
VCC – 0.5
V
VOL
Low Level Output Voltage (SDO)
IO = 1.6mA
0.4
V
VOH
High Level Output Voltage (SCk)
IO = –800A (Notes 10, 17)
VCC – 0.5
V
VOL
Low Level Output Voltage (SCk)
IO = 1.6mA (Notes 10, 17)
0.4
V
IOZ
Hi-Z Output Leakage (SDO)
–10
10
A
power requiremenTs The
denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 3)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCC
Supply Voltage
2.7
5.5
V
ICC
Supply Current
Conversion Current (Note 12)
Temperature Measurement (Note 12)
Sleep Mode (Note 12)
160
200
1
275
300
2
A
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