ADS774 兼容微处理器的采样 CMOS A/D 转换器
|
ADS774 |
ADS774H |
| Resolution(Bits) |
12 |
12 |
| Sample Rate (max) |
125KSPS |
125KSPS |
| Architecture |
SAR |
SAR |
| Power Consumption(Typ)(mW) |
75 |
75 |
| SINAD(dB) |
71 |
71 |
| SNR(dB) |
72 |
72 |
| SFDR(dB) |
78 |
78 |
No Missing Codes(Bits) |
12 |
12 |
| ENOB(Bits) |
11.5 |
11.5 |
| Analog Voltage AV/DD(Min)(V) |
4.5 |
4.5 |
| Analog Voltage AV/DD(Max)(V) |
5.5 |
5.5 |
| Logic Voltage DV/DD(Min)(V) |
4.5 |
4.5 |
| Logic Voltage DV/DD(Max)(V) |
5.4 |
5.4 |
| Input Configuration Range |
+/-5V,+/-10V,10V,20V |
+/-5V,+/-10V,10V,20V |
| Reference Mode |
Int |
INT |
| Rating |
Catalog |
Catalog |
| Pin/Package |
28PDIP, 28SOIC |
28PDIP, 28SOIC |
| # Input Channels |
1 |
1 |
| Operating Temperature Range(°C) |
-40 to 85 |
|
The ADS774 is a 12-bit successive approximation
analog-to-digital converter using an innovative
capacitor array (CDAC) implemented in low-power
CMOS technology. This is a drop-in replacement for
ADC574, ADC674, and ADC774 models in most
applications, with internal sampling, much lower power
consumption, and the ability to operate from a single
+5V supply.
The ADS774 is complete with internal clock, microprocessor
interface, three-state outputs, and internal
scaling resistors for input ranges of 0V to +10V, 0V to
+20V, ±5V, or ±10V. The maximum throughput time
is 8.5ms over the full operating temperature range,
including both acquisition and conversion.
Complete user control over the internal sampling function
facilitates elimination of external sample/hold
amplifiers in most existing designs.
The ADS774 requires +5V, with –15V optional. No
+15V supply is required. Available packages include
0.3" or 0.6" wide 28-pin plastic DIP and 28-pin SOICs.
ADS774 特性
- REPLACES ADC574, ADC674 AND ADC774 FOR NEW DESIGNS
- COMPLETE SAMPLING A/D WITH
- REFERENCE, CLOCK AND MICROPROCESSOR INTERFACE
- FAST ACQUISITION AND CONVERSION:
8.5ms max OVER TEMPERATURE
- ELIMINATES EXTERNAL SAMPLE/HOLD
- IN MOST APPLICATIONS
- GUARANTEED AC AND DC PERFORMANCE
- SINGLE +5V SUPPLY OPERATION
- LOW POWER: 120mW max
- PACKAGE OPTIONS: 0.6" and 0.3" DIPs,
SOIC
ADS774 芯片订购指南
ADS774 工具与软件
| 名称 |
型号 |
公司 |
工具/软件类型 |
| ADS6442 评估模块 |
ADS6442EVM |
Texas Instruments |
开发电路板/EVM |
| 用于模数转换器的抗混淆计算工具 |
ANTIALIASINGCALC |
Texas Instruments |
计算实用程序 |
| 运算放大器至 ADC 电路拓扑计算器 |
ADC-INPUT-CALC |
Texas Instruments |
计算实用程序 |
ADS774 质量与无铅数据
ADS774 应用技术支持与电子电路设计开发资源下载
- ADS774 数据资料 dataSheet 下载.PDF
- TI 德州仪器仪ADC 模数转换器产品选型与价格 . xls
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF
1305 KB)
- A
Spreadsheet for Calculating the Frequency Response of the ADS1250-54 (PDF
461 KB)
- A Spreadsheet for Calculating the Frequency Response of the
ADS1250-54
- Understanding the ADS1251, ADS1253, and ADS1254 Input
Circuitry (PDF 39 KB)
- Analog-to-Digital Converter Grounding Practices Affect System
Performance (PDF 56 KB)
- Principles of Data Acquisition and Conversion (PDF 50 KB)
- Interleaving Analog-to-Digital Converters (PDF 64 KB)
- What
Designers Should Know About Data Converter Drift (PDF 95 KB)
- Giving Delta-Sigma Converters a Gain Boost with a Front End
Analog Gain Stage (PDF 70 KB)
- Programming Tricks for Higher Conversion Speeds Utilizing Delta
Sigma Converters (PDF 105 KB)