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参数资料
| 型号： | DAC8554IPWR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | DAC |
| 英文描述： | SERIAL INPUT LOADING, 12 us SETTLING TIME, 16-BIT DAC, PDSO16 |
| 封装： | GREEN, PLASTIC, TSSOP-16 |
| 文件页数： | 23/31页 |
| 文件大小： | 1039K |
| 代理商： | DAC8554IPWR |
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www.ti.com
SLAS431B – JUNE 2005 – REVISED OCTOBER 2006
ELECTRICAL CHARACTERISTICS (continued)
V
DD = 2.7V to 5.5V,– 40°C to +105°C range (unless otherwise noted).
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Slew rate
1.8
V/
s
RL = ∞
470
pF
Capacitive load stability
RL = 2k
1000
pF
Code change glitch impulse
1LSB change around major carry
0.15
nV-s
Digital feedthrough
0.15
Full-scale swing on adjacent channel.
DC crosstalk
0.25
LSB
AVDD = 5V, VREF = 4.096V
AC crosstalk
1kHz sine wave
–100
dB
DC output impedance
At mid-point input
1
AVDD = 5V
50
Short-circuit current
mA
AVDD = 3V
20
Coming out of power-down mode, AVDD = 5V
2.5
Power-up time
s
Coming out of power-down mode, AVDD = 3V
5
AC PERFORMANCE
SNR
95
THD
–85
BW = 20kHz, AVDD = 5V, FOUT = 1kHz,
dB
1st 19 harmonics removed for SNR calculation
SFDR
87
SINAD
84
REFERENCE INPUT
VREFH Voltage
VREFL < VREFH, AVDD – (VREFH + VREFL)/2 > 1.2V
0
AVDD
V
VREFL Voltage
VREFL < VREFH , AVDD – (VREFH + VREFL)/2 > 1.2V
0
AVDD/2
V
VREFL = GND, VREFH = AVDD = 5V
180
250
A
Reference input current
VREFL = GND, VREFH = AVDD = 3V
120
200
A
Reference input impedance
VREFL < VREFH
31
k
LOGIC INPUTS(3)
2.7V
≤ IOV
DD ≤ 5.5V
0.3
× IOV
DD
VIL
Logic input LOW voltage
V
1.8V
≤ IOV
DD ≤ 2.7V
0.1
× IOV
DD
2.7
≤ IOV
DD ≤ 5.5V
0.7
× IOV
DD
VIH
Logic input HIGH voltage
V
1.8
≤ IOV
DD < 2.7V
0.95
× IOV
DD
Pin capacitance
3
pF
POWER REQUIREMENTS
AVDD
2.7
5.5
V
IOVDD
1.8
5.5
IDD (normal mode)
Input code = 32768, no load, reference current not included
IOIDD
10
20
A
AVDD = 3.6V to 5.5V
VIH = IOVDD and VIL = GND
0.65
0.95
mA
AVDD = 2.7V to 3.6V
0.6
0.9
IDD (all power-down modes)
AVDD = 3.6V to 5.5V
VIH = IOVDD and VIL = GND
0.7
2
A
AVDD = 2.7V to 3.6V
0.4
2
POWER EFFICIENCY
IOUT/IDD
IL = 2mA, AVDD = 5V
89
%
TEMPERATURE RANGE
Specified performance
–40
+105
°C
(3)
Ensured by design and characterization; not production tested.
3
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