參數(shù)資料
型號： ADS8422IBPFBR
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PQFP48
封裝： 9 X 9 MM, GREEN, PLASTIC, TQFP-48
文件頁數(shù)： 24/28頁
文件大小： 1310K
代理商： ADS8422IBPFBR
www.ti.com
SPECIFICATIONS (Continued)
SLAS512B – JUNE 2006 – REVISED DECEMBER 2006
T
A = –40°C to 85°C, +VA = 5 V, +VAREG = 5 V to 3 V, +VBD = 5 V to 2.7 V, fSAMPLE = 4 MSPS, Vref = 4.096 V (measured
with internal reference buffer) (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DIGITAL INPUT/OUTPUT
Logic family – CMOS
VIH
IIH = 5 A
0.75
×(+VBD)
+VBD + 0.3
VIL
IIL = 5 A
–0.3
0.8
Logic level
V
VOH
IOH = 2 TTL loads
+VBD – 0.6
VOL
IOL = 2 TTL loads
0.4
Data format – Twos complement
POWER SUPPLY REQUIREMENTS
+VA
4.75
5
5.25
Power supply voltage
+VAREG
2.85
3.0
5.25
V
+VBD
2.7
3.0
5.25
+VA
+VA = 5 V, PD1 = 1, PD2 = 1
24
27
mA
+VAREG = 5 V, PD1 = 1, PD2 = 1
12
14
+VAREG
mA
Supply current
+VAREG = 3 V, PD1 = 1, PD2 = 1
12
14
+VBD = 3 V, 10 pF/pin
0.55
+VBD(1)
mA
+VBD = 5 V, 20 pF/pin
1.8
POWER DOWN(2)
+VA
2.5
3.4
mA
Supply current
PD1 = 0, PD2 = 1, +VA = 5 V
+VAREG
5
A
Power
17
mW
Power-up time
(PD1, PD2) : (0,1)
→ (1,1)
5
s
+VA
5
Supply current
PD1 = 0, PD2 = 0
A
+VAREG
5
Power
40
W
(PD1, PD2) : (0,0)
→ (1,1) , 1-F Storage
25
Power-up time
ms
capacitor from REFOUT to AGND
TEMPERATURE RANGE
Operating free-air
–40
85
°C
(1)
This includes the current required for charging the external load capacitance on the digital outputs and is measured with four digital
outputs toggling at the same time.
(2)
(PD1 , PD2 ) = (1,0) is reserved. Do not use this power-down pins combination.
5
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