LTC2614 查看數據表（PDF） - Linear Technology
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LTC2614 Datasheet PDF : 16 Pages
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LTC2604/LTC2614/LTC2624
ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. REF A = REF B = REF C = REF D = 4.096V (VCC = 5V), REF A = REF B =
REF C = REF D = 2.048V (VCC = 2.5V), REF LO = 0V, VOUT unloaded, unless otherwise noted. (Note 10)
LTC2624/LTC2624-1 LTC2614/LTC2614-1 LTC2604/LTC2604-1
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
Load Regulation
VREF = VCC = 5V, Midscale
IOUT = 0mA to 15mA Sourcing l
IOUT = 0mA to 15mA Sinking l
0.025 0.125
0.025 0.125
0.1 0.5
0.1 0.5
0.3 2 LSB/mA
0.3 2 LSB/mA
ZSE
Zero-Scale Error
VREF = VCC = 2.5V, Midscale
IOUT = 0mA to 7.5mA Sourcing l
IOUT = 0mA to 7.5mA Sinking l
l
0.05 0.25
0.05 0.25
1.5 9
0.2 1
0.2 1
1.5 9
0.7 4 LSB/mA
0.7 4 LSB/mA
1.5 9
mV
VOS
Offset Error
VOS Temperature
Coefficient
(Note 7)
l
±1.5 ±9
±1.5 ±9
±5
±5
±1.5 ±9
±5
mV
μV/°C
GE
Gain Error
l
±0.1 ±0.7
±0.1 ±0.7
±0.1 ±0.7 %FSR
Gain Temperature
Coefficient
±5
±5
±5
ppm/°C
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. REF
A = REF B = REF C = REF D = 4.096V (VCC = 5V), REF A = REF B = REF C = REF D = 2.048V (VCC = 2.5V), REF LO = 0V, VOUT unloaded,
unless otherwise noted. (Note 10)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
PSR
Power Supply Rejection
ROUT
DC Output Impedance
DC Crosstalk (Note 4)
VCC = 5V ±10%
VCC = 3V ±10%
VREF = VCC = 5V, Midscale; –15mA ≤ IOUT ≤ 15mA l
VREF = VCC = 2.5V, Midscale; –7.5mA ≤ IOUT ≤ 7.5mA l
Due to Full Scale Output Change (Note 5)
Due to Load Current Change
Due to Powering Down (per Channel)
–80
dB
–80
dB
0.025 0.15
Ω
0.030 0.15
Ω
±5
μV
±1
μV/mA
±3.5
μV
ISC
Short-Circuit Output Current
VCC = 5.5V, VREF = 5.5V
Code: Zero Scale; Forcing Output to VCC
Code: Full Scale; Forcing Output to GND
l 15
34
60
mA
l 15
36
60
mA
VCC = 2.5V, VREF = 2.5V
Code: Zero Scale; Forcing Output to VCC
Code: Full Scale; Forcing Output to GND
l 7.5
18
50
mA
l 7.5
24
50
mA
Reference Input
Input Voltage Range
Resistance
Normal Mode
l
0
VCC
μA
l 88
128
160
kΩ
Capacitance
14
pF
IREF
Reference Current, Power Down Mode All DACs Powered Down
Power Supply
l
0.001
1
μA
VCC
Positive Supply Voltage
ICC
Supply Current
Digital I/O
For Specified Performance
VCC = 5V (Note 3)
VCC = 3V (Note 3)
All DACs Powered Down (Note 3) VCC = 5V
All DACs Powered Down (Note 3) VCC = 3V
l 2.5
5.5
V
l
1.3
2
mA
l
1
1.6
mA
l
0.35
1
μA
l
0.10
1
μA
VIH
Digital Input High Voltage
VCC = 2.5V to 5.5V
VCC = 2.5V to 3.6V
l 2.4
V
l 2.0
V
2604fd
3
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