ADS1256
- 24 Bits, No Missing Codes
- All Data Rates and PGA Settings
- Up to 23 Bits Noise-Free Resolution
- ±0.0010% Nonlinearity (max)
- Data Output Rates to 30kSPS
- Fast Channel Cycling
- 18.6 Bits Noise-Free (21.3 Effective Bits) at 1.45kHz
- One-Shot Conversions with Single-Cycle Settling
- Flexible Input Multiplexer with Sensor Detect
- Four Differential Inputs (ADS1256 only)
- Eight Single-Ended Inputs (ADS1256 only)
- Chopper-Stabilized Input Buffer
- Low-Noise PGA: 27nV Input-Referred Noise
- Self and System Calibration for All PGA Settings
- 5V Tolerant SPI™-Compatible Serial Interface
- Analog Supply: 5V
- Digital Supply: 1.8V to 3.6V
- Power Dissipation
- As Low as 38mW in Normal Mode
- 0.4mW in Standby Mode
The ADS1255 and ADS1256 are extremely low-noise, 24-bit analog-to-digital (A/D) converters. They provide complete high-resolution measurement solutions for the most demanding applications.
The converter is comprised of a 4th-order, delta-sigma (ΔΣ) modulator followed by a programmable digital filter. A flexible input multiplexer handles differential or single-ended signals and includes circuitry to verify the integrity of the external sensor connected to the inputs. The selectable input buffer greatly increases the input impedance and the low-noise programmable gain amplifier (PGA) provides gains from 1 to 64 in binary steps. The programmable filter allows the user to optimize between resolution of up to 23 bits noise-free and data rate of up to 30k samples per second (SPS). The converters offer fast channel cycling for measuring multiplexed inputs and can also perform one-shot conversions that settle in just a single cycle.
Communication is handled over an SPI-compatible serial interface that can operate with a 2-wire connection. Onboard calibration supports both self and system correction of offset and gain errors for all the PGA settings. Bidirectional digital I/Os and a programmable clock output driver are provided for general use. The ADS1255 is packaged in an SSOP-20, and the ADS1256 in an SSOP-28.
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设计和开发
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ADS1256EVM-PDK — ADS1256 性能演示套件
ADS1256EVM-PDK 是一套完整的评估/演示套件,它将 ADS1256EVM 与基于 DSP 的 MMB0 主板组合在一起,可与个人电脑配合使用。MMB0 主板允许 ADS1256EVM 通过 USB 端口连接到计算机。ADS1256EVM-PDK 由使用插件的 ADCPro™ 评估软件控制。该软件可以在 Microsoft™ Windows 操作系统中运行,可实现对 ADS1256 器件的完整评估。
SBAC145 — ADS1255-7 Design Calculator
支持的产品和硬件
产品
精密 ADC
硬件开发
评估板
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
支持的产品和硬件
产品
精密运算放大器 (Vos<1mV)
通用运算放大器
音频运算放大器
跨阻放大器
高速运算放大器 (GBW ≥ 50MHz)
功率运算放大器
视频放大器
线路驱动器
跨导放大器和激光驱动器
全差分放大器
精密 ADC
生物传感 AFE
高速 ADC (≥10MSPS)
触摸屏控制器
差分放大器
仪表放大器
音频线路接收器
模拟电流检测放大器
数字功率监控器
配备集成型电流采样电阻的模拟电流检测放大器
配备集成型电流采样电阻的数字功率监控器
芯片与晶圆服务
RF 接收器
RF 收发器
RF 发射器
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
支持的产品和硬件
产品
串联电压基准
精密 ADC
生物传感 AFE
集成型精密 ADC 和 DAC
高速 ADC (≥10MSPS)
精密 DAC (≤10MSPS)
PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice®
借助 PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。
在 PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)
TINA-TI — 基于 SPICE 的模拟仿真程序
TINA-TI 安装需要大约 500MB。直接安装,如果想卸载也很容易。我们相信您肯定会爱不释手。
TINA 是德州仪器 (TI) 专有的 DesignSoft 产品。该免费版本具有完整的功能,但不支持完整版 TINA 所提供的某些其他功能。
如需获取可用 TINA-TI 模型的完整列表,请参阅:SpiceRack - 完整列表
需要 HSpice (...)
封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
SSOP (DB) | 28 | Ultra Librarian |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点
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