参数资料
型号: LTC2481IDD#TRPBF
厂商: Linear Technology
文件页数: 12/40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
2
2481fc
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC) to GND...................... – 0.3V to 6V
Analog Input Voltage to GND ....... –0.3V to (VCC + 0.3V)
Reference Input Voltage to GND .. –0.3V to (VCC + 0.3V)
Digital Input Voltage to GND ....... – 0.3V to (VCC + 0.3V)
Digital Output Voltage to GND...... –0.3V to (VCC + 0.3V)
Operating Temperature Range
LTC2481C.................................................... 0°C to 70°C
LTC2481I .................................................– 40°C to 85°C
LTC2481H .............................................. –40°C to 125°C
Storage Temperature Range ................. –65°C to 125°C
(Notes 1, 2)
TOP VIEW
11
DD PACKAGE
10-LEAD (3mm
3mm) PLASTIC DFN
10
9
6
7
8
4
5
3
2
1
CA0/f0
CA1
GND
SDA
SCL
REF+
VCC
REF
IN+
IN
TJMAX = 125°C, θJA = 43°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2481CDD#PBF
LTC2481CDD#TRPBF
LBPV
10-Lead (3mm
× 3mm) Plastic DFN
0°C to 70°C
LTC2481IDD#PBF
LTC2481IDD#TRPBF
LBPV
10-Lead (3mm
× 3mm) Plastic DFN
–40°C to 85°C
LTC2481HDD#PBF
LTC2481HDD#TRPBF
LBPV
10-Lead (3mm
× 3mm) Plastic DFN
–40°C to 125°C
Consult LTC Marketing for parts specied with wider operating temperature ranges. *The temperature grade is identied by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specications, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS (NORMAL 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
2.5
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
2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF, IN= 0.25VREF (H-Grade)
l
25
40
ppm of VREF
ppm
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
2.5V ≤ VREF ≤ VCC, IN= 0.75VREF, IN+ = 0.25VREF (H-Grade)
l
25
40
ppm of VREF
ppm
Negative Full-Scale Error Drift
2.5V ≤ VREF ≤ VCC, IN= 0.75VREF, IN+ = 0.25VREF
0.1
ppm of VREF/°C
Total Unadjusted Error
5V ≤ VCC ≤ 5.5V, VREF = 2.5V, VIN(CM) = 1.25V (Note 6)
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)
15
ppm of VREF
Output Noise
5V ≤ VCC ≤ 5.5V, VREF = 5V, GND ≤ IN= IN+ ≤ VCC (Note 12)
0.6
μVRMS
Internal PTAT Signal
TA = 27°C
420
mV
Internal PTAT Temperature Coefcient
1.4
mV/°C
Programmable Gain
See Table 2a
l
1
256
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