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参数资料
| 型号： | DC1010A-B |
| 厂商： | Linear Technology |
| 文件页数： | 18/24页 |
| 文件大小： | 0K |
| 描述： | BOARD DELTA SIGMA ADC LTC2489 |
| 软件下载： | QuikEval System |
| 设计资源： | DC1010A Design File DC1010A Schematic |
| 标准包装： | 1 |
| 系列： | Easy Drive™, QuikEval™ |
| ADC 的数量： | 1 |
| 位数： | 16 |
| 采样率（每秒）： | 7.5 |
| 数据接口： | I²C，串行 |
| 已用 IC / 零件： | LTC2489 |
| 已供物品： | 板 |
| 相关产品： | LTC2489IDE#TRPBF-ND - IC ADC 16BIT DELTA SIG 14-DFN LTC2489CDE#TRPBF-ND - IC ADC 16BIT DELTA SIG 14-DFN LTC2489CDE#PBF-ND - IC ADC 16BIT DELTA SIG 14-DFN LTC2489IDE#PBF-ND - IC ADC 16BIT DELTA SIG 14-DFN |
LTC2489
3
2489fa
ELECTRICAL CHARACTERISTICS The l denotes the 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
Resolution (No Missing Codes)
0.1V ≤ VREF ≤ VCC, –FS ≤ VIN ≤ +FS (Note 5)
16
Bits
Integral Nonlinearity
5V ≤ VCC ≤ 5.5V, VREF = 5V, VIN(CM) = 2.5V (Note 6)
2.7V ≤ VCC ≤ 5.5V, VREF = 2.5V, VIN(CM) = 1.25V (Note 6)
l
2
1
20
ppm of VREF
Offset Error
2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 13)
l
0.5
2.5
μV
Offset Error Drift
2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC
10
nV/°C
Positive Full-Scale Error
2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF, IN– = 0.25VREF
l
32
ppm of VREF
Positive Full-Scale Error Drift
2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF, IN– = 0.25VREF
0.1
ppm of VREF/°C
Negative Full-Scale Error
2.5V ≤ VREF ≤ VCC, IN+ = 0.25VREF, IN– = 0.75VREF
l
32
ppm of VREF
Negative Full-Scale Error Drift
2.5V ≤ VREF ≤ VCC, IN+ = 0.25VREF, IN– = 0.75VREF
0.1
ppm of VREF/°C
Total Unadjusted Error
5V ≤ VCC ≤ 5.5V, VREF = 2.5V, VIN(CM) = 1.25V
5V ≤ VCC ≤ 5.5V, VREF = 5V, VIN(CM) = 2.5V
2.7V ≤ VCC ≤ 5.5V, VREF = 2.5V, VIN(CM) = 1.25V
15
ppm of VREF
Output Noise
2.7V < VCC < 5.5V, 2.5V ≤ VREF ≤ VCC,
GND ≤ IN+ = IN– ≤ VCC (Note 12)
0.6
μVRMS
CONVERTER CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 3)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Common Mode Rejection DC
2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 5)
l
140
dB
Input Normal Mode Rejection 50Hz/60Hz ±2%
2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Notes 5, 9)
l
87
dB
Reference Common Mode Rejection DC
2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 5)
l
120
140
dB
Power Supply Rejection DC
VREF = 2.5V, IN+ = IN– = GND
120
dB
Power Supply Rejection, 50Hz ±2%
VREF = 2.5V, IN+ = IN– = GND (Notes 7, 9)
120
dB
Power Supply Rejection, 60Hz ±2%
VREF = 2.5V, IN+ = IN– = GND (Notes 8, 9)
120
dB
ANALOG INPUT AND REFERENCE The l 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 IN– Voltage
(IN– Corresponds to the Selected Negative Input Channel)
GND – 0.3V
VCC + 0.3V
V
VIN
Input Differential Voltage Range (IN+ – IN–)
l
–FS
+FS
V
FS
Full Scale of the Differential Input (IN+ – IN–)
l
0.5VREF
V
LSB
Least Significant Bit of the Output Code
l
FS/216
REF+
Absolute/Common Mode REF+ Voltage
l
0.1
VCC
V
REF–
Absolute/Common Mode REF– Voltage
l
GND
REF+ – 0.1V
V
VREF
Reference Voltage Range (REF+ – REF–)
l
0.1
VCC
V
CS(IN+)IN+ Sampling Capacitance
11
pF
CS(IN–)IN– Sampling Capacitance
11
pF
CS(VREF)VREF Sampling Capacitance
11
pF
IDC_LEAK(IN+)
IN+ DC Leakage Current
Sleep Mode, IN+ = GND
l
–10
1
10
nA
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