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DAC7568IAPWR Scheda tecnica(PDF) 4 Page - Texas Instruments

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Il numero della parte DAC7568IAPWR
Spiegazioni elettronici  12-/14-/16-Bit, Octal-Channel, Ultra-Low Glitch, Voltage Output DIGITAL-TO-ANALOG CONVERTERS with 2.5V, 2ppm/째C Internal Reference
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

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DAC7568
DAC8168
DAC8568
SBAS430A – JANUARY 2009 – REVISED APRIL 2009 ..................................................................................................................................................... www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
At AVDD = 2.7V to 5.5V and over –40°C to +125°C (unless otherwise noted).
DAC7568/DAC8168/DAC8568
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
AC PERFORMANCE(3)
SNR
83
dB
TA = +25°C, BW = 20kHz, AVDD = 5V, fOUT = 1kHz,
THD
–63
dB
first 19 harmonics removed for SNR calculation,
SFDR
63
dB
at 16-bit level
SINAD
62
dB
DAC output noise density
TA = +25°C, at zero-code input, fOUT = 1kHz
90
nV/
√Hz
DAC output noise
TA = +25°C, at mid-code input, 0.1Hz to 10Hz
2.6
µV
PP
REFERENCE
AVDD = 5.5V
360
µA
Internal reference current consumption
AVDD = 3.6V
348
µA
External VREF = 2.5V (when internal reference is
External reference current
80
µA
disabled), all eight channels active
Grades A/B, AVDD = 2.7V to 5.5V
0
AVDD
V
VREFIN
Reference input range
Grades C/D, AVDD = 5.0V to 5.5V
0
AVDD/2
V
Reference input impedance
8
k
REFERENCE OUTPUT
Output voltage
TA = +25°C; all grades
2.4995
2.5
2.5005
V
Initial accuracy
TA = +25°C, all grades
–0.02
±0.004
0.02
%
DAC7568/DAC8168/DAC8568(4),grades A/B
5
25
Output voltage temperature drift
ppm/°C
DAC7568/DAC8168/DAC8568(5), grades C/D
2
5
Output voltage noise
f = 0.1Hz to 10Hz
12
µV
PP
TA = +25°C, f = 1MHz, CL = 0µF
50
Output voltage noise density
TA = +25°C, f = 1MHz, CL = 1µF
20
nV/
√Hz
(high-frequency noise)
TA = +25°C, f = 1MHz, CL = 4µF
16
Load regulation, sourcing(6)
TA = +25°C
30
µV/mA
Load regulation, sinking(6)
TA = +25°C
15
µV/mA
Output current load capability(3)
±20
mA
Line regulation
TA = +25°C
10
µV/V
Long-term stability/drift (aging)(6)
TA = +25°C, time = 0 to 1900 hours
50
ppm
First cycle
100
Thermal hysteresis(6)
ppm
Additional cycles
25
LOGIC INPUTS(3)
Input current
±1
µA
VINL
Logic input LOW voltage
2.7V
≤ AVDD ≤ 5.5V
0.8
V
VINH
Logic input HIGH voltage
2.7V
≤ AVDD ≤ 5.5V
1.8
V
Pin capacitance
3
pF
(3)
Specified by design or characterization; not production tested.
(4)
Reference is trimmed and tested at room temperature, and is characterized from –40°C to +125°C.
(5)
Reference is trimmed and tested at two temperatures (+25°C and +105°C), and is characterized from –40°C to +125°C.
(6)
Explained in more detail in the Application Information section of this data sheet.
4
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Copyright © 2009, Texas Instruments Incorporated
Product Folder Link(s): DAC7568 DAC8168 DAC8568


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