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LTC1654IGN Datenblatt(PDF) 3 Page - Linear Technology

Teilenummer LTC1654IGN
Bauteilbeschribung  Dual 14-Bit Rail-to-Rail DAC in 16-Lead SSOP Package
PDF  12 Pages
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Hersteller  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1654IGN Datenblatt(HTML) 3 Page - Linear Technology

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LTC1654
The q denotes specifications which apply over the full operating tempera-
ture range, otherwise specifications are at TA = 25°C, VCC = 2.7V to 5.5V, VOUT A, VOUT B unloaded, REFHI A, REFHI B = 4.096V
(VCC = 5V), REFHI A, REFHI B = 2.048V (VCC = 2.7V), REFLO = 0V, X1/X1/2 = 0V.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
AC Performance
Voltage Output Slew Rate
(Note 3) SLOW
q
0.20
V/
µs
(Note 3) FAST
q
1.25
V/
µs
Voltage Output Settling Time
(Note 4) to
±1LSB, SLOW
8.0
µs
(Note 4) to
±1LSB, FAST
3.5
µs
Digital Feedthrough
(Note 8)
1
nV•s
Midscale Glitch Impulse
DAC Switch Between 8000 and 7FFF
20
nV•s
Output Noise Voltage Density
at 1kHz, SLOW
540
nV/
√Hz
at 1kHz, FAST
320
nV/
√Hz
Digital I/O
VIH
Digital Input High Voltage
VCC = 5V
q
2.4
V
VIL
Digital Input Low Voltage
VCC = 5V
q
0.8
V
VOH
Digital Output High Voltage
VCC = 5V, IOUT = – 1mA, DOUT Only
q
VCC – 0.75
V
VOL
Digital Output Low Voltage
VCC = 5V, IOUT = 1mA, DOUT Only
q
0.4
V
VIH
Digital Input High Voltage
VCC = 3V
q
2.4
V
VIL
Digital Input Low Voltage
VCC = 3V
q
0.8
V
VOH
Digital Output High Voltage
VCC = 3V, IOUT = – 1mA, DOUT Only
q
VCC – 0.75
V
VOL
Digital Output Low Voltage
VCC = 3V, IOUT = 1mA, DOUT Only
q
0.4
V
ILEAK
Digital Input Leakage
VIN = GND to VCC
q
±10
µA
CIN
Digital Input Capacitance
(Note 6)
10
pF
Reference Input
Reference Input Resistance
REFHI to REFLO
q
30
60
k
Ω
Reference Input Range
(Notes 6, 7)
q
0VCC
V
Reference Input Current
In Shutdown
q
1
µA
Switching Characteristics (VCC = 4.5V to 5.5V)
t1
SDI Valid to SCK Setup
q
30
ns
t2
SDI Valid to SCK Hold
(Note 6)
q
0ns
t3
SCK High Time
(Note 6)
q
15
ns
t4
SCK Low Time
(Note 6)
q
15
ns
t5
CS/LD Pulse Width
(Note 6)
q
15
ns
t6
LSB SCK to CS/LD
(Note 6)
q
10
ns
t7
CS/LD Low to SCK
(Note 6)
q
10
ns
t8
SD0 Output Delay
CLOAD = 100pF
q
5
100
ns
t9
SCK Low to CS/LD Low
(Note 6)
q
10
ns
Switching Characteristics (VCC = 2.7V to 5.5V)
t1
SDI Valid to SCK Setup
q
45
ns
t2
SDI Valid to SCK Hold
(Note 6)
q
0ns
t3
SCK High Time
(Note 6)
q
20
ns
t4
SCK Low Time
(Note 6)
q
20
ns
t5
CS/LD Pulse Width
(Note 6)
q
20
ns
t6
LSB SCK to CS/LD
(Note 6)
q
15
ns
t7
CS/LD Low to SCK
(Note 6)
q
15
ns
t8
SDO Output Delay
CLOAD = 100pF
q
5
150
ns
t9
SCK Low to CS/LD Low
(Note 6)
q
15
ns
ELECTRICAL CHARACTERISTICS



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