LTC1408-12 - LTC1408-12是6 Channel, 12-Bit, 600ksps Simultaneous Sampling ADC with Shutdown
LTC1408-12是Linear公司的一款通用型 SAR ADC产品，LTC1408-12是6 Channel, 12-Bit, 600ksps Simultaneous Sampling ADC with Shutdown，本站介绍了LTC1408-12的封装应用图解、特点和优点、功能等，并给出了与LTC1408-12相关的凌力尔特元器件型号供参考。
LTC1408-12 - 6 Channel, 12-Bit, 600ksps Simultaneous Sampling ADC with Shutdown
LTC1408-12 - 6 Channel, 12-Bit, 600ksps Simultaneous Sampling ADC with Shutdown - Linear Technology（凌力尔特）
功能描述
The LTC1408-12 is a 12-bit, 600ksps ADC with six simultaneously sampled differential inputs. The device draws only 5mA from a single 3V supply, and comes in a tiny 32 pin (5mm × 5mm) QFN package. A SLEEP shutdown feature further reduces power consumption to 6µW. The combination of low power and tiny package makes the LTC1408-12 suitable for portable applications.
The LTC1408-12 contains six separate differential inputs that are sampled simultaneously on the rising edge of the CONV signal. These six sampled inputs are then converted at a rate of 100ksps per channel.
The 83dB common mode rejection allows users to eliminate ground loops and common mode noise by measuring signals differentially from the source.
The device converts 0V to 2.5V unipolar inputs differentially, or ±1.25V bipolar inputs also differentially, depending on the state of the BIP pin. Any analog input may swing rail-to-rail as long as the differential input range is maintained.
The conversion sequence can be abbreviated to convert fewer than six channels, depending on the logic state of the SEL2, SEL1 and SEL0 inputs.
The serial interface sends out the six conversion results in 96 clocks for compatibility with standard serial interfaces.
特点
600ksps ADC with 6 Simultaneously Sampled Differential Inputs 100ksps Throughput per Channel 72dB SINAD Low Power Dissipation: 15mW 3V Single Supply Operation 2.5V Internal Bandgap Reference, Can be Overdriven with External Reference 3-Wire SPI-Compatible Serial Interface 0V to 2.5V Unipolar, or ±1.25V Bipolar Differential Input Range SLEEP (6µW) Shutdown Mode NAP (3.3mW) Shutdown Mode Internal Conversion Triggered by CONV 83dB Common Mode Rejection Tiny 32-Pin (5mm × 5mm) QFN Package应用
Multiphase Power Measurement Multiphase Motor Control Data Acquisition Systems Uninterruptable Power Supplies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) |
| LTC1408CUH-12#PBF | 5x5 QFN-32 | C | $8.27 | $5.65 |
| LTC1408CUH-12#TRPBF | 5x5 QFN-32 | C | | $5.71 |
| LTC1408IUH-12#PBF | 5x5 QFN-32 | I | $9.93 | $6.78 |
| LTC1408IUH-12#TRPBF | 5x5 QFN-32 | I | | $6.84 |
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