參數(shù)資料
型號(hào)： DC178A
廠商： Linear Technology
文件頁(yè)數(shù)： 22/28頁(yè)
文件大?。?/td> 0K
描述： BOARD SAR ADC LTC1418
設(shè)計(jì)資源： DC178A Design File
DC178A Schematic
標(biāo)準(zhǔn)包裝： 1
ADC 的數(shù)量： 1
位數(shù)： 14
采樣率（每秒）： 200k
數(shù)據(jù)接口： 串行，并聯(lián)
輸入范圍： ±2.048 V
已用 IC / 零件： LTC1418
已供物品： 板
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更多...
3
LTC1418
(Note 5)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
S/(N + D) Signal-to-Noise Plus Distortion Ratio
97.5kHz Input Signal
q
79
81.5
dB
THD
Total Harmonic Distortion
100kHz Input Signal, First 5 Harmonics
q
– 94
– 86
dB
SFDR
Spurious Free Dynamic Range
100kHz Input Signal
q
86
95
dB
IMD
Intermodulation Distortion
fIN1 = 97.7kHz, fIN2 = 104.2kHz
– 90
dB
Full Power Bandwidth
5
MHz
Full Linear Bandwidth
S/(N + D)
≥ 77dB
0.5
MHz
ACCURACY
IC
DY
U
W
A
(Note 5)
I TER AL REFERE CE CHARACTERISTICS
U
UU
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VREF Output Voltage
IOUT = 0
2.480
2.500
2.520
V
VREF Output Tempco
IOUT = 0, Commercial
q
±10
±45
ppm/
°C
IOUT = 0, Industrial
±20
ppm/
°C
VREF Line Regulation
4.75V
≤ VDD ≤ 5.25V
0.05
LSB/ V
– 5.25V
≤ VSS ≤ –4.75V
0.05
LSB/ V
VREF Output Resistance
0.1mA
≤ IOUT ≤ 0.1mA
8
k
(Note 5)
DIGITAL I PUTS AND OUTPUTS
U
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIH
High Level Input Voltage
VDD = 5.25V
q
2.4
V
VIL
Low Level Input Voltage
VDD = 4.75V
q
0.8
V
IIN
Digital Input Current
VIN = 0V to VDD
q
±10
A
CIN
Digital Input Capacitance
1.4
pF
VOH
High Level Output Voltage
VDD = 4.75V, IO = – 10A
4.74
V
VDD = 4.75V, IO = – 200A
q
4.0
V
VOL
Low Level Output Voltage
VDD = 4.75V, IO = 160A
0.05
V
VDD = 4.75V, IO = 1.6mA
q
0.10
0.4
V
IOZ
Hi-Z Output Leakage D13 to D0
VOUT = 0V to VDD, CS High
q
±10
A
COZ
Hi-Z Output Capacitance D13 to D0
CS High (Note 9)
q
15
pF
ISOURCE
Output Source Current
VOUT = 0V
– 10
mA
ISINK
Output Sink Current
VOUT = VDD
10
mA
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VDD
Positive Supply Voltage (Notes 10, 11)
4.75
5.25
V
VSS
Negative Supply Voltage (Note 10)
Bipolar Only (VSS = 0V for Unipolar)
– 4.75
– 5.25
V
IDD
Positive Supply Current
Unipolar, RD High (Note 5)
q
3.0
4.3
mA
Bipolar, RD High (Note 5)
q
3.9
4.5
mA
Nap Mode
SHDN = 0V, CS = 0V (Note 12)
570
A
Sleep Mode
SHDN = 0V, CS = 5V (Note 12)
2
A
ISS
Negative Supply Current
Bipolar, RD High (Note 5)
q
1.4
1.8
mA
Nap Mode
SHDN = 0V, CS = 0V (Note 12)
0.1
A
Sleep Mode
SHDN = 0V, CS = 5V (Note 12)
0.1
A
PDIS
Power Dissipation
Unipolar
q
15.0
21.5
mW
Bipolar
q
26.5
31.5
mW
(Note 5)
POWER REQUIRE E TS
W
U
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