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参数资料
| 型号： | SPT7840SCT |
| 厂商： | TOKO INC |
| 元件分类： | ADC |
| 英文描述： | 1-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PQFP32 |
| 封装： | 7 X 7 MM, TQFP-32 |
| 文件页数： | 1/12页 |
| 文件大小： | 100K |
| 代理商： | SPT7840SCT |
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
SPT7840
10-BIT, 10 MSPS, 100 mW A/D CONVERTER
TECHNICAL DATA
JUNE 27, 2001
FEATURES
Monolithic 10 MSPS converter
100 mW power dissipation
On-chip track-and-hold
Single +5 V power supply
TTL/CMOS outputs
5 pF input capacitance
Low cost
Tri-state output buffers
High ESD protection: 3,500 V minimum
Selectable +3 V or +5 V logic I/O
APPLICATIONS
All high-speed applications where low power
dissipation is required
Video imaging
Medical imaging
IR imaging
Scanners
Digital communications
GENERAL DESCRIPTION
The SPT7840 is a 10-bit monolithic, low-cost, ultralow-
power analog-to-digital converter capable of minimum
word rates of 10 MSPS. The on-chip track-and-hold func-
tion assures very good dynamic performance without the
need for external components. The input drive require-
ments are minimized due to the SPT7840’s low input
capacitance of only 5 pF.
Power dissipation is extremely low at only 100 mW typical
(120 mW maximum) at 10 MSPS with a power supply of
+5.0 V. The digital outputs are +3 V or +5 V, and are user
selectable. The SPT7840 is pin-compatible with the entire
family of SPT 10-bit, CMOS converters (SPT7835/40/50/
55/60/61), which simplifies upgrades. The SPT7840 has
incorporated proprietary circuit design* and CMOS pro-
cessing technologies to achieve its advanced perfor-
mance. Inputs and outputs are TTL/CMOS-compatible to
interface with TTL/CMOS logic systems. Output data for-
mat is straight binary.
The SPT7840 is available in a 28-lead SOIC package over
the industrial temperature range, and a 32-lead small
(7 mm square) TQFP package over the commercial
temperature range.
*Patent pending
BLOCK DIAGRAM
11-Bit
SAR
DAC
ADC Section 1
T/H
11
11-Bit
SAR
DAC
ADC Section 8
Auto-
Zero
CMP
Auto-
Zero
CMP
T/H
11
VREF
1:8
Mux
11
11-Bit
8:1
Mux/
Error
Correction
Timing
and
Control
P1
P2
P7
P8
ADC Section 2
ADC Section 7
Reference Ladder
Ref
In
Enable
CLK In
Data
Valid
AIN
D10 Overrange
D9 (MSB)
D8
D7
D6
D5
D4
D3
D2
D1
D0 (LSB)
...
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SPT7840SIS | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:10-BIT, 10 MSPS, 100 mW A/D CONVERTER |
| SPT7850 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:10-BIT, 20 MSPS, 140 mW A/D CONVERTER |
| SPT7850SCN | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:10-BIT, 20 MSPS, 140 mW A/D CONVERTER |
| SPT7850SCT | 制造商:CADEKA 制造商全称:CADEKA 功能描述:10-BIT, 20 MSPS, 140 mW A/D CONVERTER |
| SPT7850SIS | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:10-BIT, 20 MSPS, 140 mW A/D CONVERTER |
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