参数资料
型号: LTC2481IDD#TRPBF
厂商: Linear Technology
文件页数: 23/40页
文件大小: 0K
描述: IC ADC 16BIT I2C 10-DFN
标准包装: 2,500
位数: 16
采样率(每秒): 7.5
数据接口: I²C,串行,SPI?
转换器数目: 1
功率耗散(最大): 480µW
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 10-WFDFN 裸露焊盘
供应商设备封装: 10-DFN(3x3)
包装: 带卷 (TR)
输入数目和类型: 2 个单端,双极;1 个差分,双极
配用: DC951A-ND - BOARD DELTA SIGMA ADC LTC2481
LTC2481
3
2481fc
ELECTRICAL CHARACTERISTICS (2X SPEED) The l denotes the specications which apply over
the full operating temperature range, otherwise specications are at TA = 25°C. (Notes 3, 4)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Resolution (No Missing Codes) 0.1 ≤ VREF ≤ VCC, –FS ≤ VIN ≤ +FS (Note 5)
l
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
10
ppm of VREF
Offset Error
2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN≤ VCC (Note 13)
l
0.5
2
mV
Offset Error Drift
2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN≤ VCC
100
nV/°C
Positive Full-Scale Error
2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF, IN= 0.25VREF
l
25
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= 0.75VREF, IN+ = 0.25VREF
l
25
ppm of VREF
Negative Full-Scale Error Drift
2.5V ≤ VREF ≤ VCC, IN= 0.75VREF, IN+ = 0.25VREF
0.1
ppm of VREF/°C
Output Noise
5V ≤ VCC ≤ 5.5V, VREF = 5V, GND ≤ IN= IN+ ≤ VCC
0.84
μVRMS
Programmable Gain
See Table 2b
l
1
128
CONVERTER CHARACTERISTICS The l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. (Notes 3, 4)
ANALOG INPUT AND REFERENCE The l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. (Note 3)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IN+
Absolute/Common Mode IN+ Voltage
GND – 0.3V
VCC + 0.3V
V
IN
Absolute/Common Mode INVoltage
GND – 0.3V
VCC + 0.3V
V
FS
Full Scale of the Differential Input (IN+ – IN)
l
0.5VREF/GAIN
V
LSB
Least Signicant Bit of the Output Code
l
FS/216
VIN
Input Differential Voltage Range (IN+ – IN)
l
–FS
+FS
V
VREF
Reference Voltage Range (REF+ – REF)
l
0.1
VCC
V
CS (IN+)IN+ Sampling Capacitance
11
pF
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 Common Mode Rejection
50Hz ± 2%
2.5V ≤ VREF ≤ VCC, GND ≤ IN= IN+ ≤ VCC (Note 5)
l
140
dB
Input Common Mode Rejection
60Hz ±2%
2.5V ≤ VREF ≤ VCC, GND ≤ IN= IN+ ≤ VCC (Note 5)
l
140
dB
Input Normal Mode Rejection
50Hz ±2%
2.5V ≤ VREF ≤ VCC, GND ≤ IN= IN+ ≤ VCC (Notes 5, 7)
2.5V ≤ VREF ≤ VCC, GND ≤ IN= IN+ ≤ VCC (H-Grade)
l
110
104
120
dB
Input Normal Mode Rejection
60Hz ±2%
2.5V ≤ VREF ≤ VCC, GND ≤ IN= IN+ ≤ VCC (Notes 5, 8)
2.5V ≤ VREF ≤ VCC, GND ≤ IN= IN+ ≤ VCC (H-Grade)
l
110
104
120
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
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