LTC1662 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1662' PDF : 12 Pages View PDF
LTC1662
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range (TA = TMIN to TMAX), 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
Power Supply
VCC
Positive Supply Voltage
For Specified Performance
q 2.7
5.5
V
ICC
Supply Current
VCC = 3V (Note 3)
VCC = 5V (Note 3)
VCC = 3V (Note 3)
VCC = 5V (Note 3)
3.0
4.0
µA
3.5
4.5
µA
q
5.0
µA
q
5.5
µA
Sleep Mode Operating Current Supply Plus Reference Current, VCC = VREF = 5V (Note 3)
q
0.05
0.10
µA
0.18
µA
DC Performance
Short-Circuit Current Low
Short-Circuit Current High
AC Performance
VOUT = 0V, VCC = VREF = 5V, Code = 1023 (Note 7)
VOUT = VCC = VREF = 5V, Code = 0 (Note 7)
q5
q3
12
70
mA
10
80
mA
Voltage Output Slew Rate
Rising (Notes 4, 5)
Falling (Notes 4, 5)
20
V/ms
7
V/ms
Voltage Output Settling Time
Capacitive Load Driving
Rising 0.1VFS to 0.9VFS ±0.5LSB (Notes 4, 5)
Falling 0.9VFS to 0.1VFS ±0.5LSB (Notes 4, 5)
0.40
ms
0.75
ms
1000
pF
Digital I/O
VIH
Digital Input High Voltage VCC = 2.7V to 5.5V
VCC = 2.7V to 3.6V
q 2.4
V
q 2.0
V
VIL
Digital Input Low Voltage
VCC = 4.5V to 5.5V
VCC = 2.7V to 5.5V
q
0.8
V
q
0.6
V
ILK
Digital Input Leakage
VIN = GND to VCC
q
±0.05
±1.0
µA
CIN
Digital Input Capacitance
WU
TI I G CHARACTERISTICS
range, otherwise specifications are at TA = 25°C.
1.5
pF
The q denotes the specifications which apply over the full operating temperature
SYMBOL PARAMETER
VCC = 4.5V to 5.5V
t1
SDI Setup
t2
SDI Hold
t3
SCK High Time
t4
SCK Low Time
t5
CS/LD Pulse Width
t6
LSB SCK High to CS/LD High
t7
CS/LD Low to SCK High
t9
SCK Low to CS/LD Low
t11
CS/LD High to SCK Positive Edge
SCK Frequency
VCC = 2.7V to 5.5V
t1
SDI Setup
t2
SDI Hold
t3
SCK High Time
t4
SCK Low Time
CONDITIONS
Relative to SCK Positive Edge
Relative to SCK Positive Edge
(Note 6)
(Note 6)
(Note 6)
(Note 6)
(Note 6)
(Note 6)
(Note 6)
Square Wave (Note 6)
Relative to SCK Positive Edge (Note 6)
Relative to SCK Positive Edge (Note 6)
(Note 6)
(Note 6)
MIN
q 55
q0
q 30
q 30
q 100
q 30
q 20
q0
q 20
q
q 75
q0
q 50
q 50
TYP
MAX UNITS
15
ns
– 10
ns
14
ns
14
ns
27
ns
2
ns
– 21
ns
–5
ns
0
ns
16.7
MHz
20
ns
– 10
ns
15
ns
15
ns
3
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