LTC2612 查看數據表（PDF） - Linear Technology
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LTC2612 Datasheet PDF : 16 Pages
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LTC2602/LTC2612/LTC2622
ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 2.5V to 5.5V, VREF ≤ VCC, VOUT unloaded, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
LTC2602/LTC2612/LTC2622
MIN
TYP MAX UNITS
PSRR
ROUT
Power Supply Rejection Ratio
DC Output Impedance
DC Crosstalk (Note 4)
VCC = 5V ±10%
VREF = VCC = 5V, Midscale; –15mA ≤ IOUT ≤ 15mA ●
VREF = VCC = 2.5V, 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)
– 80
dB
0.05 0.15
Ω
0.05 0.15
Ω
±30
µV
±16
µV/mA
±4
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
● 15
34
60
mA
● 15
38
60
mA
VCC = 2.5V, VREF = 2.5V
Code: Zero Scale; Forcing Output to VCC
Code: Full Scale; Forcing Output to GND
● 7.5
20
50
mA
● 7.5
28
50
mA
Reference Input
Input Voltage Range
Resistance
Normal Mode
●
0
VCC
V
● 44
64
80
kΩ
Capacitance
23
pF
IREF
Reference Current, Power Down Mode All DACs Powered Down
Power Supply
●
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
● 2.5
5.5
V
●
0.7
1.3
mA
●
0.6
1
mA
●
0.35
1
µA
●
0.10
1
µA
VIH
Digital Input High Voltage
VIL
Digital Input Low Voltage
ILK
Digital Input Leakage
CIN
Digital Input Capacitance
VCC = 2.5V to 5.5V
VCC = 2.5V to 3.6V
VCC = 4.5V to 5.5V
VCC = 2.7V to 5.5V
VCC = 2.5V to 5.5V
VIN = GND to VCC
(Note 6)
● 2.4
● 2.0
●
●
●
●
●
V
V
0.8
V
0.6
V
0.5
V
±1
µA
8
pF
SYMBOL PARAMETER
AC Performance
ts
Settling Time (Note 8)
Settling Time for
1LSB Step (Note 9)
Voltage Output Slew Rate
Capacitive Load Driving
Glitch Impulse
Multiplying Bandwidth
en
Output Voltage Noise
Density
Output Voltage Noise
CONDITIONS
±0.024% (±1LSB at 12 Bits)
±0.006% (±1LSB at 14 Bits)
±0.0015% (±1LSB at 16 Bits)
±0.024% (±1LSB at 12 Bits)
±0.006% (±1LSB at 14 Bits)
±0.0015% (±1LSB at 16 Bits)
At Midscale Transition
At f = 1kHz
At f = 10kHz
0.1Hz to 10Hz
LTC2622
LTC2612
LTC2602
MIN TYP MAX MIN TYP MAX MIN TYP MAX
UNITS
7
7
7
µs
9
9
µs
10
µs
2.7
2.7
2.7
µs
4.8
4.8
µs
5.2
µs
0.80
0.80
0.80
V/µs
1000
1000
1000
pF
12
12
12
nV • s
180
180
180
kHz
120
120
120
nV/√Hz
100
100
100
nV/√Hz
15
15
15
µVP-P
2602fa
3
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