LTC1661CMS8 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LTC1661CMS8 Datasheet PDF : 14 Pages
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LTC1661
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 2.7V to 5.5V, VREF ≤ VCC, VOUT unloaded unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Reference Input
Input Voltage Range
Resistance
Active Mode
l
0
VCC
V
l 140
260
kΩ
Capacitance
l
15
pF
IREF
Reference Current
Sleep Mode
l
0.001
1
µA
Power Supply
VCC
Positive Supply Voltage
ICC
Supply Current
For Specified Performance
VCC = 5V (Note 3)
VCC = 5V (Note 3)
Sleep Mode (Note 3)
l 2.7
5.5
V
l
120
195
µA
l
95
154
µA
l
1
3
µA
DC Performance
Short-Circuit Current Low
Short-Circuit Current High
AC Performance
VOUT = 0V, VCC = VREF = 5V, Code = 1023
l 10
25
100
mA
VOUT = VCC = VREF = 5V, Code = 0
l
7
19
120
mA
Voltage Output Slew Rate
Rising (Notes 4, 5)
Falling (Notes 4, 5)
0.60
V/µs
0.25
V/µs
Voltage Output Settling Time
To ±0.5LSB (Notes 4, 5)
30
µs
Capacitive Load Driving
1000
pF
Digital I/O
VIH
Digital Input High Voltage
VIL
Digital Input Low Voltage
ILK
Digital Input Leakage
CIN
Digital Input Capacitance
VCC = 2.7V to 5.5V
VCC = 2.7V to 3.6V
VCC = 4.5V to 5.5V
VCC = 2.7V to 5.5V
VIN = GND to VCC
(Note 6)
l 2.4
l 2.0
l
l
l
l
V
V
0.8
V
0.6
V
±10
µA
10
pF
TIMING CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCC = 4.5V to 5.5V
t1
DIN Valid to SCK Setup
l 40
ns
t2
DIN Valid to SCK Hold
l
0
ns
t3
SCK High Time
t4
SCK Low Time
t5
CS/LD Pulse Width
t6
LSB SCK High to CS/LD High
(Note 6)
(Note 6)
(Note 6)
(Note 6)
l 30
ns
l 30
ns
l 80
ns
l 30
ns
t7
CS/LD Low to SCK High
(Note 6)
l 20
ns
t9
SCK Low to CS/LD Low
(Note 6)
l
0
ns
t11
CS/LD High to SCK Positive Edge
(Note 6)
SCK Frequency
Square Wave (Note 6)
l 20
l
ns
16.7
MHz
1661fa
3
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