參數(shù)資料
型號(hào): ADS8328IBPW
英文描述: LOW POWER, 16-BIT, 500-kHz, SINGLE/DUAL UNIPOLAR INPUT, ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL INTERFACE
中文描述: 低功耗,16位,500千赫,單/雙單極性輸入,模擬到數(shù)字串行接口變換器
文件頁數(shù): 6/40頁
文件大?。?/td> 2759K
代理商: ADS8328IBPW
www.ti.com
ADS8327
ADS8328
SLAS415A–APRIL 2006–REVISED MAY 2006
SPECIFICATIONS (continued)
T
A
= –40°C to 85°C, +VA = 5 V, +VBD = +5.5 V to +1.65 V, V
ref
= 4.096 V, f
SAMPLE
= 500 kHz (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DYNAMIC CHARACTERISTICS
V
IN
= 4.096 V
pp
at 10 kHz
V
IN
= 4.096 V
pp
at 100 kHz,
V
IN
= 4.096 V
pp
at 100 kHz,
V
IN
= 4.096 V
pp
at 10 kHz
V
IN
= 4.096 V
pp
at 100 kHz
V
IN
= 4.096 V
pp
at 10 kHz
V
IN
= 4.096 V
pp
at 100 kHz
V
IN
= 4.096 V
pp
at 10 kHz
V
IN
= 4.096 V
pp
at 100 kHz,
V
IN
= 4.096 V
pp
at 100 kHz,
-96
THD
Total harmonic distortion
(4)
ADS8327/28IB
-95.7
dB
ADS8327/28I
-95.7
91
SNR
Signal-to-noise ratio
dB
89
91
SINAD
Signal-to-noise + distortion
dB
88
100
SFDR
Spurious free dynamic range
ADS8327/28IB
98.8
dB
ADS8327/28I
98.8
-3dB Small signal bandwidth
30
MHz
CLOCK
Internal conversion clock frequency
10.9
12
12.6
MHz
Used as I/O clock only
50
SCLK External serial clock
MHz
As I/O clock and conversion clock
1
21
EXTERNAL VOLTAGE REFERENCE INPUT
V
ref
(REF+ – REF–)
(REF–) – AGND
5.5 V
+VA
4.5 V
0.3
4.096
4.2
Input reference
range
V
ref
V
–0.1
0.1
Resistance
(5)
Reference input
80
k
DIGITAL INPUT/OUTPUT
Logic family — CMOS
V
IH
V
IL
I
I
C
i
High-level input voltage
5.5 V
+VBD
4.5 V
5.5 V
+VBD
4.5 V
V
I
= +VBD or BDGND
0.65 × (+VBD)
+VBD + 0.3
V
Low-level input voltage
–0.3
0.35 × (+VBD)
V
Input current
-50
50
nA
Input capacitance
5
pF
5.5 V
+VBD
4.5 V,
I
O
= 100
μ
A
5.5 V
+VBD
4.5 V,
I
O
= 100
μ
A
V
OH
High-level output voltage
+VBD – 0.6
+VBD
V
V
OL
Low-level output voltage
0
0.4
V
C
O
C
L
Output capacitance
5
pF
Load capacitance
30
pF
Data format — straight binary
POWER SUPPLY REQUIREMENTS
+VBD
1.65
3.3
5.5
V
Power supply
voltage
+VA
4.5
5
5.5
V
500-kHz Sample rate
5
6.2
mA
Supply current
Nap mode
0.3
0.5
PD Mode
6
50
nA
Buffer I/O supply current
500 KSPS
1
mA
+VA = 5 V, +VBD = 5 V
30
38.5
Power dissipation
mW
+VA = 5 V, +VBD = 1.8 V
25.4
32
TEMPERATURE RANGE
T
A
Operating free-air temperature
–40
85
°C
(4)
(5)
Calculated on the first nine harmonics of the input frequency
Can vary ±30%
6
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