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参数资料
| 型号： | DC1571A-C |
| 厂商： | Linear Technology |
| 文件页数： | 19/24页 |
| 文件大小： | 0K |
| 描述： | BOARD SAR ADC LTC2381-16 |
| 软件下载： | QuikEval II System |
| 设计资源： | DC1571A Design Files DC1571A Schematic |
| 标准包装： | 1 |
| 系列： | QuikEval™ |
| ADC 的数量： | 1 |
| 位数： | 16 |
| 采样率（每秒）： | 250k |
| 数据接口： | 串行，SPI? |
| 输入范围： | ±2.5 V |
| 在以下条件下的电源（标准）： | 3.25mW @ 250kSPS |
| 工作温度： | 0°C ~ 70°C |
| 已用 IC / 零件： | LTC2381-16 |
| 已供物品： | 板 |
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LTC2381-16
4
238116f
ADC TIMING CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
fSMPL
Maximum Sampling Frequency
l
250
ksps
tCONV
Conversion Time
l
23
μs
tACQ
Acquisition Time
tACQ = tCYC – tHOLD (Note 10)
l
3.25
μs
tHOLD
Maximum Time Between Acquisitions
l
750
ns
tCYC
Time Between Conversions
l
4us
tCNVH
CNV High Time
l
20
ns
tBUSYLH
CNV ↑ to BUSY Delay
CL = 20pF (Note 11)
l
20
ns
tCNVL
Minimum Low Time for CNV
(Note 11)
l
200
ns
tSCK
SCK Period
(Notes 11, 12)
l
10
ns
The
l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 4)
POWER REQUIREMENTS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VDD
Supply Voltage
l
2.375
2.5
2.625
V
OVDD
Supply Voltage
1.71
5.25
V
IDD
Supply Current
Power Down Mode
250ksps Sample Rate
Conversion Done
Conversion Done (H-Grade)
l
1.3
0.5
1.7
40
110
mA
μA
PD
Power Dissipation
Power Down Mode
250ksps Sample Rate
Conversion Done
Conversion Done (H-Grade)
3.25
1.25
4.25
100
275
mW
μW
The
l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 4)
REFERENCE INPUT
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VREF
Reference Voltage
(Note 5)
l
2.4
2.6
V
IREF
Load Current
(Note 9)
l
285
μA
The
l denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at TA = 25°C. (Note 4)
DIGITAL INPUTS AND DIGITAL OUTPUTS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIH
High Level Input Voltage
l 0.8 OVDD
V
VIL
Low Level Input Voltage
l
0.2 OVDD
V
IIN
Digital Input Current
VIN = 0V to OVDD
l
–10
10
μA
CIN
Digital Input Capacitance
5pF
VOH
High Level Output Voltage
IO = –500 μA
l OVDD – 0.2
V
VOL
Low Level Output Voltage
IO = 500 μA
l
0.2
V
IOZ
Hi-Z Output Leakage Current
VOUT = 0V to OVDD
l
–10
10
μA
ISOURCE
Output Source Current
VOUT = 0V
–10
mA
ISINK
Output Sink Current
VOUT = OVDD
10
mA
The
l denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4)
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