LT1019A-10 LINER [Linear Technology], LT1019A-10 Datasheet - Page 6

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LT1019A-10

Manufacturer Part Number
LT1019A-10
Description
Dual Current Output 12-/14-/16-Bit SoftSpan DACs with Parallel I/O
Manufacturer
LINER [Linear Technology]
Datasheet
LTC2753
TIMING CHARACTERISTICS
otherwise specifi cations are at T
SYMBOL
V
t
t
t
CLR Timing
t
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Continuous operation above the specifi ed maximum operating
junction temperature may impair device reliability.
Note 3: Because of the proprietary SoftSpan switching architecture, the
measured resistance looking into each of the specifi ed pins is constant for
all output ranges if the I
Note 4: R1 is measured from R
R
Note 5: Using LT1469 with C
of 1.7μs can be achieved by optimizing the time constant on an individual
6
22
23
24
25
DD
COM
= 2.7V to 3.3V
.
PARAMETER
READ Falling Edge to UPD Rising Edge
I/O Bus Hi-Z to Read Rising Edge
Read Falling Edge to I/O Bus Active
CLR Pulse Width Low
OUT1X
FEEDBACK
and I
IN
to R
OUT2X
A
COM
= 15pF . A ±0.0015% settling time
= 25°C.
pins are held at ground.
; R2 is measured from REFA to
The
CONDITIONS
(Note 10)
(Note 10)
(Note 10)
denotes specifi cations that apply over the full operating temperature range,
basis. See Application Note 74, Component and Measurement Advances
Ensure 16-Bit DAC Settling Time.
Note 6: Measured at the major carry transition, 0V to 5V range. Output
amplifi er: LT1469; C
Note 7. Full-scale transition; REF = 0V.
Note 8. REF = 6V
amplifi er = LT1469.
Note 9. Calculation from V
(Boltzmann constant), R = resistance (Ω), T = temperature (°K), and B =
bandwidth (Hz).
Note 10. Guaranteed by design. Not production tested.
RMS
FB
at 1kHz. 0V to 5V range. DAC code = FS. Output
= 27pF .
n
= √ ⎯ 4 ⎯ k ⎯ T ⎯ R ⎯ ⎯ ⎯ B , where k = 1.38E-23 J/°K
MIN
10
35
20
0
TYP
MAX
UNITS
2753f
ns
ns
ns
ns

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