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LTC1277 - 典型应用图例：
LTC1277典型应用图例一
LTC1277典型应用图例二
LTC1277 - 封装图解：
LTC1277封装图解一
LTC1277封装图解二
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LINEAR产品 - LTC1277介绍

LTC1277 - LTC1277是12-Bit, 10mW, 100ksps ADCs with 1μA Shutdown

LTC1277是LINEAR凌力尔特公司的一款通用型 SAR ADC产品，LTC1277是LTC1277是12-Bit, 10mW, 100ksps ADCs with 1μA Shutdown，本站介绍了LTC1277的封装应用图解、特点和优点、功能等，并给出了与LTC1277相关的LINEAR元器件型号供参考。

LTC1277 - LTC1277是12-Bit, 10mW, 100ksps ADCs with 1μA Shutdown - 通用型 SAR ADC - 数据转换 - 凌力尔特

LTC1277 - 12-Bit, 10mW, 100ksps ADCs with 1μA Shutdown

LTC1277 - 12-Bit, 10mW, 100ksps ADCs with 1μA Shutdown - Linear Technology（凌力尔特）

功能描述
The LTC1274/LTC1277 are 8µs sampling 12-bit A/D converters which draw only 2mA (typ) from single 5V or ±5V supplies. These easy-to-use devices come complete with a 2ms sample-and-hold, a precision reference and an internally trimmed clock. Unipolar and bipolar conversion modes add to the flexibility of the ADCs.

Two power-down modes are available in the LTC1277. In Napmode, the LTC1277 draws only 180µA and the instant wake-up from Nap mode allows the LTC1277 to be powered down even during brief inactive periods. In Sleep mode only 1µA will be drawn. A REFRDY signal is used to show the ADC is ready to sample after waking up from Sleep mode. The LTC1274 also provides the Sleep mode and REFRDY signal.

The A/D converters convert 0V to 4.096V unipolar inputs from a single 5V supply or ±2.048V bipolar inputs from ±5V supplies.

The LTC1274 has a single-ended input and a 12-bit parallel data format. The LTC1277 offers a differential input and a 2-byte read format. The bipolar mode is formatted as 2’s complement for the LTC1274 and offset binary for the LTC1277.

特点
  • Low Power Dissipation: 10mW
  • Sample Rate: 100ksps
  • Samples Inputs Beyond Nyquist, 72dB S/(N D) and 82dB THD at fIN = 100kHz
  • Single Supply 5V or ±5V Operation
  • Power Shutdown to 1µA in Sleep Mode
  • 180µA Nap Mode (LTC1277) with Instant Wake-Up
  • Internal Reference Can Be Overdriven
  • Internal Synchronized Clock
  • 0V to 4.096V or ±2.048V Input Ranges (1mV/LSB)
  • 24-Lead SOL Package
    • 应用
  • Battery-Powered Portable Systems
  • High Speed Data Acquisition for PCs
  • Digital Signal Processing
  • Multiplexed Data Acquisition Systems
  • Audio and Telecom Processing
  • Spectrum Analysis
    • 以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）
    器件型号 封装 温度 价格 (以 1 ~ 99 片为批量) 价格 (以 1000 片为批量)
    LTC1277CSW SW-24 C $10.40 $8.00
    LTC1277CSW#PBF SW-24 C $10.40 $8.00
    LTC1277CSW#TR SW-24 C $8.10
    LTC1277CSW#TRPBF SW-24 C $8.10
    LTC1277ISW SW-24 I $11.35 $8.70
    LTC1277ISW#PBF SW-24 I $11.35 $8.70
    LTC1277ISW#TR SW-24 I $8.80
    LTC1277ISW#TRPBF SW-24 I $8.80
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  • LTC1274 - 12-Bit, 10mW, 100ksps ADCs with 1μA Shutdown
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  • LTC6655 - 0.25ppm 噪声、低漂移、精准基准系列
  • LTC6362 - 精准、低功率轨至轨输入 / 输出差分运算放大器 / SAR ADC 驱动器
  • LT1763 - 500mA、低噪声、LDO 微功率稳压器
  • LT3080 - 可调 1.1A、单电阻、低压差稳压器
  • LTC3789 - 高效率、同步、四开关降压-升压型控制器
  • LT4356-1 / LT4356-2 - 浪涌抑制器
  • LT3580 - 具 2A 开关、软起动和同步功能的升压/负输出 DC/DC 转换器
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