The ADS414x/2x are a family of 14-bit/12-bit analog-to-digital converters (ADCs) with sampling rates up to 250MSPS. These devices use innovative design techniques to achieve high dynamic performance, while consuming extremely low power at 1.8V supply. The devices are well-suited for multi-carrier, wide bandwidth communications applications.
The ADS414x/2x have fine gain options that can be used to improve SFDR performance at lower full-scale input ranges, especially at high input frequencies. They include a dc offset correction loop that can be used to cancel the ADC offset. At lower sampling rates, the ADC automatically operates at scaled down power with no loss in performance.
The ADS414x/2x are available in a compact QFN-48 pacakge and are specified over the industrial temperature range (–40°C to +85°C).
| ADS4126 | ADS4129 | ADS4146 | ADS4149 | ADS41B29 | ADS41B49 | |
| Resolution(Bits) | 12 | 12 | 14 | 14 | 12 | 14 |
| Sample Rate (max) | 160MSPS | 250MSPS | 160MSPS | 250MSPS | 250MSPS | 250MSPS |
| Architecture | Pipeline | Pipeline | Pipeline | Pipeline | Pipeline | Pipeline |
| Power Consumption(Typ)(mW) | 200 | 265 | 200 | 265 | 350 | 350 |
| SINAD(dB) | 70 | 69.65 | 72.5 | 72.14 | 68.45 | 70.96 |
| SNR(dB) | 70.5 | 70.4 | 73 | 72.9 | 69.2 | 71.7 |
| SFDR(dB) | 83 | 80 | 83 | 80 | 80 | 80 |
| No Missing Codes(Bits) | 12 | 12 | 14 | 14 | 12 | 14 |
| ENOB(Bits) | 11.33 | 11.27 | 11.75 | 11.7 | 11.07 | 11.5 |
| No. of Supplies | 1 | 1 | 1 | 1 | 2 | 2 |
| Analog Voltage AV/DD(Min)(V) | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 |
| Analog Voltage AV/DD(Max)(V) | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 |
| Logic Voltage DV/DD(Min)(V) | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 |
| Logic Voltage DV/DD(Max)(V) | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 |
| Input Configuration Range | 2V (p-p) | 2V (p-p) | 2V (p-p) | 2V (p-p) | 2V (p-p) | 2V (p-p) |
| Reference Mode | Int | Int | Int | Int | Int | Int |
| Rating | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| Pin/Package | 48VQFN | 48VQFN | 48VQFN | 48VQFN | 48VQFN | 48VQFN |
| # Input Channels | 1 | 1 | 1 | 1 | 1 | 1 |
| Operating Temp Range(Celsius) | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
| 器件 | 状态 | 温度(oC) | 价格（美元） | 封装 | 引脚 |
| ADS4149IRGZ25 | PREVIEW | -40 to 85 | VQFN (RGZ) | 48 | |
| ADS4149IRGZR | ACTIVE | -40 to 85 | 111.25 | 100u | VQFN (RGZ) | 48 |
| ADS4149IRGZT | ACTIVE | -40 to 85 | 112.50 | 100u | VQFN (RGZ) | 48 |
| 名称 | 型号 | 公司 | 工具/软件类型 |
| ADS4149 评估模块 | ADS4149EVM | Texas Instruments | 开发电路板/EVM |
| 针对 Code Composer Studio 的 DCPFREETOOL 软件插件 | DCPFREETOOL | Texas Instruments | 实用程序/插件 |
| 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 |