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LTC2445 Datenblatt(PDF) 4 Page - Linear Technology

Teilenummer LTC2445
Bauteilbeschribung  24-Bit High Speed 8-/16-Channel ADCs with Selectable Speed/Resolution
PDF  28 Pages
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Hersteller  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC2445 Datenblatt(HTML) 4 Page - Linear Technology

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LTC2444/LTC2445/
LTC2448/LTC2449
4
sn2444589 2444589fs
TI I G CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCC
Supply Voltage
●
4.5
5.5
V
ICC
Supply Current
Conversion Mode
CS = 0V (Note 7)
●
811
mA
Sleep Mode
CS = VCC (Note 7)
●
830
µA
The
● denotes specifications which apply over the full operating temperature range,
otherwise specifications are at TA = 25°C. (Note 3)
POWER REQUIRE E TS
The
● denotes 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
VIH
High Level Input Voltage
4.5V ≤ VCC ≤ 5.5V
●
2.5
V
CS, FO
VIL
Low Level Input Voltage
4.5V ≤ VCC ≤ 5.5V
●
0.8
V
CS, FO
VIH
High Level Input Voltage
4.5V ≤ VCC ≤ 5.5V (Note 8)
●
2.5
V
SCK
VIL
Low Level Input Voltage
4.5V ≤ VCC ≤ 5.5V (Note 8)
●
0.8
V
SCK
IIN
Digital Input Current
0V ≤ VIN ≤ VCC
●
–10
10
µA
CS, FO, EXT, SOI
IIN
Digital Input Current
0V ≤ VIN ≤ VCC (Note 8)
●
–10
10
µA
SCK
CIN
Digital Input Capacitance
10
pF
CS, FO
CIN
Digital Input Capacitance
(Note 8)
10
pF
SCK
VOH
High Level Output Voltage
IO = –800µA
●
VCC – 0.5V
V
SDO, BUSY
VOL
Low Level Output Voltage
IO = 1.6mA
●
0.4V
V
SDO, BUSY
VOH
High Level Output Voltage
IO = –800µA (Note 9)
●
VCC – 0.5V
V
SCK
VOL
Low Level Output Voltage
IO = 1.6mA (Note 9)
●
0.4V
V
SCK
IOZ
Hi-Z Output Leakage
●
–10
10
µA
SDO
DIGITAL I PUTS A D DIGITAL OUTPUTS
The
● denotes 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
fEOSC
External Oscillator Frequency Range
●
0.1
20
MHz
tHEO
External Oscillator High Period
●
25
10000
ns
tLEO
External Oscillator Low Period
●
25
10000
ns
tCONV
Conversion Time
OSR = 256 (SDI = 0)
●
0.99
1.13
1.33
ms
OSR = 32768 (SDI = 1)
●
126
145
170
ms
External Oscillator (Notes 10, 13)
●
40 • OSR +170
fEOSC (kHz)
ms
fISCK
Internal SCK Frequency
Internal Oscillator (Note 9)
●
0.8
0.9
1
MHz
External Oscillator (Notes 9, 10)
fEOSC/10
Hz



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