LTC2617 Просмотр технического описания (PDF) - Linear Technology
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LTC2617 Datasheet PDF : 20 Pages
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LTC2607/LTC2617/LTC2627
ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. REF = 4.096V (VCC = 5V), REF = 2.048V (VCC = 2.7V), REFLO = 0V,
VOUT unloaded, unless otherwise noted.
SYMBOL
PSR
ROUT
PARAMETER
Power Supply Rejection
DC Output Impedance
DC Crosstalk (Note 4)
ISC
Short-Circuit Output Current
Reference Input
Input Voltage Range
Resistance
Capacitance
IREF
Reference Current, Power Down Mode
Power Supply
VCC
Positive Supply Voltage
ICC
Supply Current
Digital I/O (Note 11)
VIL
VIH
VIL(LDAC)
Low Level Input Voltage (SDA and SCL)
High Level Input Voltage (SDA and SCL)
Low Level Input Voltage (LDAC)
VIH(LDAC) High Level Input Voltage (LDAC)
VIL(CAn)
VIH(CAn)
RINH
RINL
RINF
VOL
tOF
Low Level Input Voltage on CAn
(n = 0, 1, 2)
High Level Input Voltage on CAn (n = 0, 1, 2)
Resistance from CAn (n = 0, 1, 2)
to VCC to Set CAn = VCC
Resistance from CAn (n = 0, 1, 2)
to GND to Set CAn = GND
Resistance from CAn (n = 0, 1, 2)
to VCC or GND to Set CAn = Float
Low Level Output Voltage
Output Fall Time
tSP
Pulse Width of Spikes Suppressed by Input Filter
IIN
Input Leakage
CIN
I/O Pin Capacitance
CB
Capacitive Load for Each Bus Line
CCAX
External Capacitive Load on Address
Pins CAn (n = 0, 1, 2)
CONDITIONS
VCC ±10%
VREF = VCC = 5V, Midscale;
–15mA ≤ IOUT ≤ 15mA
VREF = VCC = 2.7V, Midscale;
–7.5mA ≤ IOUT ≤ 7.5mA
Due to Full Scale Output Change (Note 5)
Due to Load Current Change
Due to Powering Down (per channel)
VCC = 5.5V, VREF = 5.5V
Code: Zero Scale; Forcing Output to VCC
Code: Full Scale; Forcing Output to GND
VCC = 2.7V, VREF = 2.7V
Code: Zero Scale; Forcing Output to VCC
Code: Full Scale; Forcing Output to GND
Normal Mode
DAC Powered Down
For Specified Performance
VCC = 5V (Note 3)
VCC = 3V (Note 3)
DAC Powered Down (Note 3) VCC = 5V
DAC Powered Down (Note 3) VCC = 3V
VCC = 4.5V to 5.5V
VCC = 2.7V to 5.5V
VCC = 2.7V to 5.5V
VCC = 2.7V to 3.6V
See Test Circuit 1
See Test Circuit 1
See Test Circuit 2
See Test Circuit 2
See Test Circuit 2
Sink Current = 3mA
VO = VIH(MIN) to VO = VIL(MAX),
CB = 10pF to 400pF (Note 9)
0.1VCC ≤ VIN ≤ 0.9VCC
Note 12
MIN
●
●
● 15
● 15
● 7.5
● 7.5
●0
● 44
●
● 2.7
●
●
●
●
●
● 0.7VCC
●
●
● 2.4
● 2.0
●
● 0.85VCC
●
●
●2
●0
● 20 + 0.1CB
●0
●
●
●
●
TYP
– 80
0.032
0.035
±4
±3
±30
36
37
22
30
64
30
0.001
0.66
0.52
0.4
0.10
MAX
0.15
0.15
60
60
50
50
VCC
80
1
5.5
1.3
1
1
1
0.3VCC
0.8
0.6
0.15VCC
10
10
0.4
250
50
1
10
400
10
UNITS
dB
Ω
Ω
µV
µV/mA
µV
mA
mA
mA
mA
V
kΩ
pF
µA
V
mA
mA
µA
µA
V
V
V
V
V
V
V
V
kΩ
kΩ
MΩ
V
ns
ns
µA
pF
pF
pF
26071727f
3
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