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參數(shù)資料
| 型號： | SPT7755AIK |
| 廠商： | SIGNAL PROCESSING TECHNOLOGIES |
| 元件分類： | ADC |
| 英文描述： | 1-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS, PQFP80 |
| 封裝： | MQUAD-80 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 92K |
| 代理商： | SPT7755AIK |
Signal Processing Technologies, Inc.
4755 Forge Road, Colorado Springs, Colorado 80907, USA
Phone: 719-528-2300
Fax: 719-528-2370
Web Site: http://www.spt.com
e-mail: sales@spt.com
SPT7755
8-BIT, 750 MSPS, FLASH A/D CONVERTER
TECHNICAL DATA
NOVEMBER 30, 2001
FEATURES
1:2 Demuxed ECL compatible outputs
Wide input bandwidth – 900 MHz
Low input capacitance – 15 pF
Metastable errors reduced to 1 LSB
Monolithic for low cost
Gray code output
APPLICATIONS
Digital oscilloscopes
Transient capture
Radar, EW, ECM
Direct RF down-conversion
GENERAL DESCRIPTION
The SPT7755 is a full parallel (flash) analog-to-digital con-
verter capable of digitizing full scale (0 to –2 V) inputs into
eight-bit digital words at an update rate of 750 MSPS. The
ECL-compatible outputs are demultiplexed into two sepa-
rate output banks, each with differential data ready out-
puts to ease the task of data capture. The SPT7755’s wide
input bandwidth and low capacitance eliminate the need
for external track-and-hold amplifiers for most applications.
A proprietary decoding scheme reduces metastable errors
to the 1 LSB level. The SPT7755 operates from a single –
5.2 V supply, with a nominal power dissipation of 5.5 W.
The SPT7755 is available in an 80-lead surface-mount
MQuad package over the industrial temperature range
(–25 °C to +85 °C) and in die form.
256
255
152
151
128
127
64
63
2
1
CLOCK
BUFFER
256
T
O
8
Bit
Decoder
W
ith
Metastable
Error
Correction
D0
(LSB)
D1
D2
D3
D4
D5
D6
D7
(MSB)
D8
(OVR)
VRT
Analog
Input
Preamp
Comparator
VRM
VRB
CLK CLK
ECL
Output
Buffers
And
Latches
1:2
DEMUL
TIPLEXER
D8B
D7B
D6B
D5B
D4B
D3B
D2B
D1B
D0B
D8A
D7A
D6A
D5A
D4A
D3A
D2A
D1A
D0A
D8B (OVR)
D7B (MSB)
D6B
D5B
D4B
D3B
D2B
D1B
D0B (LSB)
D8A (OVR)
D7A (MSB)
D6A
D5A
D4A
D3A
D2A
D1A
D0A (LSB)
DRA (DATA READY)
DEMUX
CLOCK
BUFFER
DRB (DATA READY)
BANK
A
BANK
B
BLOCK DIAGRAM
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| SPT7835SIT | 1-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PQFP32 |
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| SPT7855SCN | 1-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDIP28 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SPT7755BIK | 制造商:CADEKA 制造商全稱:CADEKA 功能描述:8-BIT, 750 MSPS, FLASH A/D CONVERTER |
| SPT7760 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT, 1 GSPS FLASH A/D CONVERTER |
| SPT7760AIK | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT, 1 GSPS FLASH A/D CONVERTER |
| SPT7760BIK | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT, 1 GSPS FLASH A/D CONVERTER |
| SPT7810 | 制造商:CADEKA 制造商全稱:CADEKA 功能描述:10-BIT, 20 MSPS, ECL OUTPUT A/D CONVERTER |
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