ADS7817 12 位差动输入微功耗采样模数转换器
ADS7817 相关产品
- ADS7866 - 器件与被比较器件具有相同的功能，但并不是引脚对引脚等效，也有可能参数不相同。 Has a single ended input configuration
- ADS7886 - 器件与被比较器件具有相同的功能，但并不是引脚对引脚等效，也有可能参数不相同。 Has a higher sampling rate (1MSPS). Has a single ended input configuration
- ADS8317 - 器件与被比较器件具有相同的功能和引脚排列，但并不完全等效。 16-bit equivalent device
ADS7817 说明
The ADS7817 is a 12-bit, 200kHz sampling Analog-to-Digital (A/D) converter that features a high impedance fully differential analog input. The reference voltage can be varied from 100mV to 2.5V, with a corresponding input-referred resolution between 49uV and 1.22mV.
The differential input, low power, automatic power down, and small size make the ADS7817 ideal for direct connection to transducers in battery operated systems, remote data acquisition, or multi-channel applications. The ADS7817 is available in a plastic mini-DIP-8, an SO-8, or an MSOP-8 package.
|
ADS1286 |
ADS7816 |
ADS7817 |
ADS7822 |
ADS7826 |
ADS7827 |
ADS7829 |
| Resolution(Bits) |
12 |
12 |
12 |
12 |
10 |
8 |
12 |
| Sample Rate (max) |
37kSPS |
200kSPS |
200kSPS |
200kSPS |
200kSPS |
250kSPS |
125kSPS |
| Architecture |
SAR |
SAR |
SAR |
SAR |
SAR |
SAR |
SAR |
| Power Consumption(Typ)(mW) |
1 |
1.9 |
2.3 |
0.6 |
0.8 |
0.6 |
0.6 |
| SINAD(dB) |
72 |
72 |
71 |
71 |
62 |
48 |
71 |
| SNR(dB) |
|
|
|
|
50 |
62 |
72 |
| SFDR(dB) |
90 |
86 |
86 |
86 |
81 |
68 |
86 |
| DNL(Max)(+/-LSB) |
0.75 |
0.75 |
1 |
0.75 |
1 |
1 |
0.75 |
| INL(Max)(+/-LSB) |
1 |
1 |
1 |
0.75 |
1 |
1 |
1.25 |
| No Missing Codes(Bits) |
12 |
12 |
12 |
12 |
10 |
8 |
12 |
| No. of Supplies |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Analog Voltage AV/DD(Min)(V) |
4.75 |
4.5 |
4.75 |
2.7 |
2.7 |
2.7 |
2 |
| Analog Voltage AV/DD(Max)(V) |
5.25 |
5.25 |
5.25 |
5.25 |
5.5 |
5.5 |
5.25 |
| Logic Voltage DV/DD(Min)(V) |
4.75 |
4.75 |
4.75 |
2.7 |
2.7 |
2.7 |
2.7 |
| Logic Voltage DV/DD(Max)(V) |
5.25 |
5.25 |
5.25 |
5.25 |
5.25 |
5.25 |
5.25 |
| Input Configuration Range |
Vref |
Vref |
+/-Vref at +Vref |
Vref |
Vref |
Vref |
Vref |
| Reference Mode |
Ext |
Ext |
Ext |
Ext |
Ext |
Ext |
Ext |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
| Pin/Package |
8PDIP, 8SOIC |
8MSOP, 8PDIP, 8SOIC |
8MSOP, 8SOIC |
8MSOP, 8PDIP, 8SOIC |
8SON |
8SON |
8SON |
| Comments |
|
|
|
|
Pseudo-differential input |
Pseudo-differential input |
Pseudo-differential input |
| # Input Channels |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
ADS7817 特性
- BIPOLAR INPUT RANGE
- TRUE DIFFERENTIAL INPUT
- 200kHz SAMPLING RATE
- MICRO POWER: 2.3mW at 200kHz
- POWER DOWN: 3uA Max
- AVAILABLE IN MSOP-8 PACKAGE
- SERIAL INTERFACE
- AC COMMON-MODE REJECTION
- APPLICATIONS
- TRANSDUCER INTERFACE
- BATTERY OPERATED SYSTEMS
- REMOTE DATA ACQUISITION
- ISOLATED DATA ACQUISITION
- AC MOTOR CONTROL
ADS7817 芯片订购指南
ADS7817 质量与无铅数据
ADS7817 应用技术支持与电子电路设计开发资源下载
- ADS7817 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)
ADS7817 工具与软件