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LTC2984 Datasheet(PDF) 5 Page - Analog Devices

Part # LTC2984
Description  Multi-Sensor High Accuracy Digital Temperature Measurement System with EEPROM
PDF  78 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LTC2984 Datasheet(HTML) 5 Page - Analog Devices

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LTC2984
5
2984fb
For more information www.linear.com/LTC2984
REFERENCE ELECTRICAL CHARACTERISTICS
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Output Voltage
VREFOUT (Note 10)
2.49
2.51
V
Output Voltage Temperature Coefficient
I-Grade, H-Grade
l
3
15
ppm/°C
Output Voltage Temperature Coefficient
C-Grade
l
3
20
ppm/°C
Line Regulation
l
10
ppm/V
Load Regulation
IOUT(SOURCE) = 100µA
l
5
mV/mA
IOUT(SINK) = 100µA
l
5
mV/mA
Output Voltage Noise
0.1Hz ≤ f ≤ 10Hz
4
µVP-P
10Hz ≤ f ≤ 1kHz
4.5
µVP-P
Output Short-Circuit Current
Short VREFOUT to GND
40
mA
Short VREFOUT to VDD
30
mA
Turn-On Time
0.1% Setting, CLOAD = 1µF
115
µs
Long Term Drift of Output Voltage (Note 13)
60
ppm/√khr
Hysteresis (Note 14)
∆T = 0°C to 70°C
∆T = –40°C to 85°C
30
70
ppm
ppm
The l denotes the specifications which apply over
the full operating temperature range, otherwise specifications are at TA = 25°C.
DIGITAL INPUTS AND DIGITAL OUTPUTS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
External SCK Frequency Range
l
0
2
MHz
External SCK LOW Period
l
250
ns
External SCK HIGH Period
l
250
ns
t1
CS↓ to SDO Valid
l
0
200
ns
t2
CS↑ to SDO Hi-Z
l
0
200
ns
t3
CS↓ to SCK↑
l
100
ns
t4
SCK↓ to SDO Valid
l
225
ns
t5
SDO Hold After SCK↓
l
10
ns
t6
SDI Setup Before SCK↑
l
100
ns
t7
SDI HOLD After SCK↑
l
100
ns
High Level Input Voltage
CS, SDI, SCK, RESET
l
VDD – 0.5
V
Low Level Input Voltage
CS, SDI, SCK, RESET
l
0.5
V
Digital Input Current
CS, SDI, SCK, RESET
l
–10
10
µA
Digital Input Capacitance
CS, SDI, SCK, RESET
10
pF
LOW Level Output Voltage (SDO, INTERRUPT)
IO = –800µA
l
0.4
V
High Level Output Voltage (SDO, INTERRUPT)
IO = 1.6mA
l
VDD – 0.5
V
Hi-Z Output Leakage (SDO)
l
–10
10
µA
The l denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at TA = 25°C.



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