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參數資料
| 型號： | HI1866JCQ |
| 廠商： | HARRIS SEMICONDUCTOR |
| 元件分類： | ADC |
| 英文描述： | 6-Bit, 140 MSPS, Flash A/D Converter |
| 中文描述： | 1-CH 6-BIT FLASH METHOD ADC, PARALLEL ACCESS, PQFP48 |
| 文件頁數： | 3/13頁 |
| 文件大小： | 97K |
| 代理商： | HI1866JCQ |
4-3
Pin Descriptions
PIN NO.
SYMBOL
I/O
TYPICAL
VOLTAGE
LEVEL
EQUIVALENT CIRCUIT
DESCRIPTION
21
V
RT
I
0V
Top reference voltage input (= 0). This is
the top reference voltage supplied to the
internal resistance chain. The external
input can be set in accordance with the
peak value on the plus side of the input
analog signal amplitude.
22
V
RTS
O
0V
V
RT
sense output. This is the voltage
sense pin for V
RT
.
Bottom reference voltage input (= -2V).
This is the bottom reference voltage
supplied to the internal resistance
chain. The external input can be set in
accordance with the peak value on the
minus side of the input analog signal
amplitude.
16
V
RB
I
-2V
15
V
RBS
O
-2V
V
RB
sense output. This is the voltage
sense pin for V
RB
.
19
V
IN
I
V
RTS
to
V
RBS
Analog input. The input range is 2V
P-P
.
26
CCLK
I
ECL
CCLK clock input. This is the conversion
clock, and is an ECL level input.
25
NCCLK
I
ECL
CCLK inversion clock input. This is an
ECL level input. When left open, this
input goes to the ECL threshold potential
(-1.3V). Only CCLK input can be used for
operation with the NCCLK input left
open, but complementary input is
recommended to attain fast and stable
operation.
11
DCLK
I
ECL
DCLK clock input. This is the 1:2 DMPX
latch clock; input a clock of
1
/
2
frequency
of CCLK. Data is output from DMPX port
1 and port 2 synchronously with the
rising edge of this signal. This is an ECL
level input.
12
NDCLK
I
ECL
DCLK inversion clock input. This is an
ECL level input. When left open, this
input goes to the ECL threshold potential
(-1.3V). Only DCLK input can be used for
operation with the NDCLK input left
open, but complementary input is
recommended to attain fast and stable
operation.
V
RT
V
RTS
V
RBS
V
RB
COMPARATOR 1
COMPARATOR 2
COMPARATOR 31
COMPARATOR 32
COMPARATOR 63
V
IN
AGND
A
VEE
DGND1
CCLK
(DCLK)
NCCLK
(NDCLK)
500
500
D
VEE
1.3V
R
R
R
R
R
R
HI1866
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