參數(shù)資料
型號: TS8387MF_
廠商: ATMEL CORP
元件分類: ADC
英文描述: 1-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, CQFP68
封裝: 24 X 24 MM, CERAMIC, QFP-68
文件頁數(shù): 3/38頁
文件大?。?/td> 617K
代理商: TS8387MF_
TS8387
11/38
3.6.
FUNCTIONS DESCRIPTION
Name
Function
VCC
Positive power supply
VEE
Analog negative power supply
VCC = +5 V
DVEE
Digital negative power supply
GND
Ground
VIN
OR
DGND
Digital ground
VINB
ORB
VIN, VINB
Differential analog inputs
CLK
CLKB
B0
→B7
B0B
→B7B
16
TS8387
CLK, CLKB
Differential clock inputs
CLKB
DR
TS8387
GAIN
<B0:B7>
<B0B:B7B>
Differential output data port
GORB
G
DIOD
DRB
DR ; DRB
Differential data ready outputs
O
OR ; ORB
Out of range outputs
VEE
5V
GND
DGND
DVEE= 5V
GAIN
ADC gain adjust (optional)
VEE=–5V
GND
DGND
DVEE=–5V
GORB
Gray or Binary digital output select
DIOD
Die junction temp. measurement
3.7.
DIGITAL CODING
NRZ (Non Return to Zero) mode, ideal coding: doesn’t include gain offset and linearity voltage errors
Differential
analog
Voltage level
Digital output
Out of
Range
analog
input
Binary
GORB = VCC
or floating
Gray
GORB = GND
Range
> +251 mV
> Positive full scale + 1/2 LSB
11111 111
1 0 0 0 0 0 0 0
1
+251 mV
+ 249 mV
Positive full scale + 1/2 LSB
Positive full scale - 1/2 LSB
11111 111
11111 110
10000 000
10000 001
0
+126 mV
+ 124 mV
Positive 1/2 scale + 1/2 LSB
Positive1/2 scale - 1/2 LSB
11000 000
10111 111
1 0 1 0 0 0 0 0
1 1 1 0 0 0 0 0
0
+1 mV
–1 mV
Bipolar zero + 1/2 LSB
Bipolar zero – 1/2 LSB
10000 000
01111 111
11000 000
01000 000
0
–124 mV
–126 mV
Negative 1/2 scale + 1/2 LSB
Negative 1/2 scale – 1/2 LSB
01000 000
00111 111
01 1 00 000
0 0 1 0 0 0 0 0
0
–249 mV
–251 mV
Negative full scale + 1/2 LSB
Negative full scale – 1/2 LSB
00000 001
00000 000
00000 001
00000 000
0
< –251 mV
< Negative full scale – 1/2 LSB
00000 000
0 0 0 0 0 0 0 0
1
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