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参数资料
| 型号： | DC746A |
| 厂商： | Linear Technology |
| 文件页数： | 23/36页 |
| 文件大小： | 0K |
| 描述： | BOARD DELTA SIGMA ADC LTC2412 |
| 软件下载： | QuikEval System |
| 设计资源： | DC746A Design File DC746A Schematic |
| 标准包装： | 1 |
| 系列： | QuikEval™ |
| ADC 的数量： | 1 |
| 位数： | 24 |
| 采样率（每秒）： | 7.5 |
| 数据接口： | MICROWIRE?，串行，SPI? |
| 工作温度： | 0°C ~ 70°C |
| 已用 IC / 零件： | LTC2412 |
| 已供物品： | 板 |
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LTC2412
3
2412f
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IN+
Absolute/Common Mode IN+ Voltage
q
GND – 0.3
VCC + 0.3
V
IN–
Absolute/Common Mode IN– Voltage
q
GND – 0.3
VCC + 0.3
V
VIN
Input Differential Voltage Range
q
–VREF/2
VREF/2
V
(IN+ – IN–)
REF+
Absolute/Common Mode REF+ Voltage
q
0.1
VCC
V
REF–
Absolute/Common Mode REF– Voltage
q
GND
VCC – 0.1
V
VREF
Reference Differential Voltage Range
q
0.1
VCC
V
(REF+ – REF–)
CS (IN+)IN+ Sampling Capacitance
18
pF
CS (IN–)IN– Sampling Capacitance
18
pF
CS (REF+)REF+ Sampling Capacitance
18
pF
CS (REF–)REF– Sampling Capacitance
18
pF
IDC_LEAK (IN
+)IN+ DC Leakage Current
CS = VCC = 5.5V, IN
+ = GND
q
–10
1
10
nA
IDC_LEAK (IN
–)IN– DC Leakage Current
CS = VCC = 5.5V, IN
– = 5.5V
q
–10
1
10
nA
IDC_LEAK (REF
+)REF+ DC Leakage Current
CS = VCC = 5.5V, REF
+ = 5.5V
q
–10
1
10
nA
IDC_LEAK (REF–)REF– DC Leakage Current
CS = VCC = 5.5V, REF– = GND
q
–10
1
10
nA
The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 3)
The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Common Mode Rejection DC
2.5V
≤ REF+ ≤ VCC, REF– = GND,
q
130
140
dB
GND
≤ IN– = IN+ ≤ VCC (Note 5)
Input Common Mode Rejection
2.5V
≤ REF+ ≤ VCC, REF– = GND,
q
140
dB
60Hz
±2%
GND
≤ IN– = IN+ ≤ VCC, (Notes 5, 7)
Input Common Mode Rejection
2.5V
≤ REF+ ≤ VCC, REF– = GND,
q
140
dB
50Hz
±2%
GND
≤ IN– = IN+ ≤ VCC, (Notes 5, 8)
Input Normal Mode Rejection
(Notes 5, 7)
q
110
140
dB
60Hz
±2%
Input Normal Mode Rejection
(Note 5, 8)
q
110
140
dB
50Hz
±2%
Reference Common Mode
2.5V
≤ REF+ ≤ VCC, GND ≤ REF– ≤ 2.5V,
q
130
140
dB
Rejection DC
VREF = 2.5V, IN– = IN+ = GND (Note 5)
Power Supply Rejection, DC
REF+ = 2.5V, REF– = GND, IN– = IN+ = GND
120
dB
Power Supply Rejection, 60Hz
±2% REF+ = 2.5V, REF– = GND, IN– = IN+ = GND, (Note 7)
120
dB
Power Supply Rejection, 50Hz
±2% REF+ = 2.5V, REF– = GND, IN– = IN+ = GND, (Note 8)
120
dB
CO VERTER CHARACTERISTICS
U
A ALOG I PUT A
U
D REFERE CE
UU
U
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