Supply Voltage (VCC) to GND" />
參數(shù)資料
型號： DC956A
廠商： Linear Technology
文件頁數(shù)： 12/40頁
文件大?。?/td> 0K
描述： BOARD DELTA SIGMA ADC LTC2485
軟件下載： QuikEval System
設(shè)計資源： DC956A Design File
DC956A Schematic
標準包裝： 1
系列： Easy Drive™, QuikEval™
ADC 的數(shù)量： 1
位數(shù)： 24
采樣率（每秒）： 6.8
數(shù)據(jù)接口： I²C，串行
工作溫度： 0°C ~ 70°C
已用 IC / 零件： LTC2485
已供物品： 板
相關(guān)產(chǎn)品： LTC2485CDD#TRPBF-ND - IC ADC 24BIT I2C 10-DFN
LTC2485IDD#TRPBF-ND - IC ADC 24BIT I2C 10-DFN
LTC2485IDD#PBF-ND - IC ADC 24BIT I2C 10-DFN
LTC2485CDD#PBF-ND - IC ADC 24BIT I2C 10-DFN
LTC2485
2
2485fc
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
LTC2485C .................................................... 0°C to 70°C
LTC2485I ................................................– 40°C to 85°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
LTC2485CDD#PBF
LTC2485CDD#TRPBF
LBST
10-Lead (3mm × 3mm) Plastic DFN
0°C to 70°C
LTC2485IDD#PBF
LTC2485IDD#TRPBF
LBST
10-Lead (3mm × 3mm) Plastic DFN
–40°C to 85°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/
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Resolution (No Missing Codes)
0.1 ≤ VREF ≤ VCC, –FS ≤ VIN ≤ +FS (Note 5)
●
24
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)
●
2
1
10
ppm of VREF
Offset Error
2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 13)
●
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
●
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
●
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
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
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)
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