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参数资料
| 型号： | SPT7855SCU |
| 厂商： | SIGNAL PROCESSING TECHNOLOGIES |
| 元件分类： | ADC |
| 英文描述： | 1-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, UUC |
| 封装： | DIE |
| 文件页数： | 1/11页 |
| 文件大小： | 92K |
| 代理商： | SPT7855SCU |
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
SPT7855
10-BIT, 25 MSPS, 135 mW A/D CONVERTER
TECHNICAL DATA
APRIL 9, 2001
FEATURES
Monolithic 25 MSPS converter
135 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
Digital communications
GENERAL DESCRIPTION
The SPT7855 is a 10-bit monolithic, low-cost, ultralow-
power analog-to-digital converter capable of minimum
word rates of 25 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 SPT7855’s low input
capacitance of only 5 pF.
Power dissipation is extremely low at only 135 mW typical
at 25 MSPS with a power supply of +5.0 V. The digital out-
puts are +3 V or +5 V, and are user selectable. The
SPT7855 is pin-compatible with the entire family of SPT
10-bit, CMOS converters (SPT7835/40/50/55/60/61),
which simplifies upgrades. The SPT7855 has incorpo-
rated proprietary circuit design* and CMOS processing
technologies to achieve its advanced performance. Inputs
and outputs are TTL/CMOS-compatible to interface with
TTL/CMOS logic systems. Output data format is straight
binary.
The SPT7855 is available in 28-lead SOIC and 32-lead
small (7 mm square) TQFP packages over the commer-
cial and industrial temperature ranges.
*Patent pending
11-Bit
SAR
DAC
ADC Section 1
T/H
11
11-Bit
SAR
DAC
ADC Section 16
Auto-
Zero
CMP
Auto-
Zero
CMP
T/H
11
VREF
1:16
Mux
11
11-Bit
16:1
Mux/
Error
Correction
Timing
and
Control
P1
P2
P15
P16
ADC Section 2
ADC Section 15
Reference Ladder
Ref
In
Enable
CLK In
Data
Valid
AIN
D10 Overrange
D9 (MSB)
D8
D7
D6
D5
D4
D3
D2
D1
D0 (LSB)
...
BLOCK DIAGRAM
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SPT7855SIS | 功能描述:视频模拟/数字化转换器集成电路 10BIT 40MSPS SaR aDC RoHS:否 制造商:Texas Instruments 输入信号类型:Differential 转换器数量:1 ADC 输入端数量:4 转换速率:3 Gbps 分辨率:8 bit 结构: 输入电压:3.3 V 接口类型:SPI 信噪比: 电压参考: 电源电压-最大:3.45 V 电源电压-最小:3.15 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:TCSP-48 封装:Reel |
| SPT7855SIS_Q | 功能描述:模数转换器 - ADC 10BIT 40MSPS SaR aDC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| SPT7855SIT | 功能描述:视频模拟/数字化转换器集成电路 10BIT 40MSPS SaR aDC RoHS:否 制造商:Texas Instruments 输入信号类型:Differential 转换器数量:1 ADC 输入端数量:4 转换速率:3 Gbps 分辨率:8 bit 结构: 输入电压:3.3 V 接口类型:SPI 信噪比: 电压参考: 电源电压-最大:3.45 V 电源电压-最小:3.15 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:TCSP-48 封装:Reel |
| SPT7855SIT_Q | 功能描述:模数转换器 - ADC 10BIT 40MSPS SaR aDC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| SPT7860 | 制造商:CADEKA 制造商全称:CADEKA 功能描述:10-BIT, 40 MSPS, 175 mW A/D CONVERTER |
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