LHA8961DEMB
The LHA8961 is a 16-bit, successive approximation, analog-to-digital converter (ADC) that operates from a single supply (VDD). It includes a low-power, high-speed, 16-bit sampling ADC and a multi-function serial interface port. On the rising edge of CNV, the LHA8961 samples the voltage difference between the IN+ and IN- pins, which typically swing between 0 V and VREF in opposite phase. The reference voltage (REF) is provided externally and can be independent of the supply voltage (VDD). Its power consumption and throughput scale linearly. The SPI-compatible serial interface also enables daisy-chaining of several ADCs onto a 3-wire bus using the SDI input and provides an optional busy indicator. With an independent supply for VIO, the device is compatible with 1.8 V, 2.5 V, 3 V, and 5 V logic. The LHA8961 is available in a 10-pin MSOP package or a 10-pin QFN package. The operating temperature range is −40°C to +85°C.
Product Features
- 16位分辨率、无失码
- 吞吐速率：1MSPS
- 低功耗
-
— 4 mW(1MSPS，仅VDD)
— 7 mW(1MSPS，总功耗)
— 70 μW at 10 kSPS
- 积分非线性(INL)：典型值±1 LSB，最大值±2 LSB
- 动态范围：96 dB
- 真差分模拟输入范围：±VREF
-
— 0 V至VREF(VREF在2.5 V至5.0 V之间)
— 可使用任一输入范围
- 伪差分模拟输入
-
— 任意共模输入
— 单端输入
- 无流水线延迟
- 采用1.8 V单电源供电，提供1.8V/2.5V/3V/5V逻辑接口SPI
- 以菊花链形式连接多个ADC，并能提供繁忙指示
- 10引脚封装：MSOP 和3 mm × 3 mm QFN
Application Scenario
- Battery Powered Equipment
- Data Acquisition System
- Medical equipment
- Seismic Data Acquisition System
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