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參數(shù)資料
| 型號(hào)： | SP97504DG |
| 廠商： | ZARLINK SEMICONDUCTOR INC |
| 元件分類： | ADC |
| 英文描述： | 1-CH 4-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, CDIP18 |
| 封裝： | CERAMIC, DIP-18 |
| 文件頁數(shù)： | 2/8頁 |
| 文件大?。?/td> | 234K |
| 代理商： | SP97504DG |
SP97504
DS2191 - 2.2
The SP97504 is a fast 4-bit ECL A-D converter,
expandable up to 8 bits without additional encoding circuitry.
It has been designed to maintain high accuracy at high analog
input frequencies.
It can convert at sample rates from DC to 110MHz, with
analog inputs above Nyquist frequencies. All output levels are
ECL compatible.
The latch function to the device provides on-chip sampling
which allows the converter to operate without an external
sample and hold. Data is clocked through the device in
master/slave fashion, ensuring that all outputs are
synchronous.
The SP97504 operates from a +5V, -7V supply.
FEATURES
I
Operating Temperature Range -30
°
C to +85
°
C
I
No External Components for 4-Bit Conversion
I
110MHz Conversion Rate
I
On-Chip Encoding for Expansion to 8 Bits
I
No External Sample and Hold Needed
I
Bit Size 10-100mV
I
Over 100MHz Full Power Bandwidth
I
10ps Aperture Uncertainty Time
I
8-Bit Accuracy (When Expanded)
ABSOLUTE MAXIMUM RATINGS
Positive supply voltage
Negative supply voltage
Storage temperature range
Junction operating temperature
Lead temperture (soldering 60 sec)
+5.5V
-7.5V
-65
°
C to +150
°
C
<175
°
C
300
°
C
ORDERING INFORMATION
SP97504 DG
(Industrial - Ceramic DIL package)
Fig.1 Pin connections - top view
DG18
REFERENCE
CENTRE-TAP
VREF1
ANALOG INPUT
VREF2
-VEE
+VCC
CARRY OUTPUT
CARRY INPUT
GROUND (0V)
LATCH INPUT
1
2
3
OUTPUT
2
2
2
OUTPUT
3
2
1
OUTPUT
4
2
0
OUTPUT
1
18
2
17
3
16
4
15
14
13
12
11
10
5
6
7
8
9
CARRY GATE
OUTPUTS
HIGH SPEED FOUR BIT EXPANDABLE A TO D CONVERTER
16
15
14
3
2
1
2
3
2
2
2
1
2
0
CARRY
R
R
R
R
R
R
CARRY INPUT
ANALOG INPUT
V REF 1
CTAP
V REF 2
LATCH INPUT
ELOGIC
GATE
OUTPUTS
Fig.2 Functional diagram
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