概览

优势和特点

  • Processed and Qualified to Proprietary RT Flow Using PEM-INST-001 as a Guideline
  • 1Msps Throughput Rate
  • ±0.5ppm INL (Typ)
  • Guaranteed 20-Bit No Missing Codes
  • Low Power: 21mW at 1Msps, 21μW at 1ksps
  • 104dB SNR (Typ) at fIN = 2kHz
  • –125dB THD (Typ) at fIN = 2kHz
  • Digital Gain Compression (DGC)
  • 2.5V Supply
  • Fully Differential Input Range ±VREF
  • VREF Input Range from 2.5V to 5.1V
  • No Pipeline Delay, No Cycle Latency
  • 1.8V to 5V I/O Voltages
  • SPI-Compatible Serial I/O with Daisy-Chain Mode
  • Internal Conversion Clock
  • 16-Lead MSOP Package
  • To request samples or a demo board of the commercial equivalent, please visit the LTC2378-20 product page
Radiation Performance
  • Total Ionizing Dose (TID) Tolerance, per TM1019.8, MIL-STD-883: - 10kRad (Si), per condition A at 50Rads(Si)/sec (20kRad data available in Space Data Pack)
  • Single Event Latch-Up (SEL) Threshold Linear Energy Transfer (LET) ≥ 30.86MeV-cm2/mg at TCASE = 70°C

产品详情

The RT2378-20 is a low noise, low power, high speed 20-bit successive approximation register (SAR) ADC. Operating from a 2.5V supply, the RT2378-20 has a ±VREF fully differential input range with VREF ranging from 2.5V to 5.1V. The RT2378-20 consumes only 21mW and achieves ±2ppm INL maximum, no missing codes at 20 bits with 104dB SNR.

The RT2378-20 has a high speed SPI-compatible serial interface that supports 1.8V, 2.5V, 3.3V and 5V logic while also featuring a daisy-chain mode. The fast 1Msps throughput with no cycle latency makes the RT2378-20 ideally suited for a wide variety of high speed applications. An internal oscillator sets the conversion time, easing external timing considerations. The RT2378-20 automatically powers down between conversions, leading to reduced power dissipation that scales with the sampling rate.

The RT2378-20 features a unique digital gain compression (DGC) function, which eliminates the driver amplifier’s negative supply while preserving the full resolution of the ADC. When enabled, the ADC performs a digital scaling function that maps zero-scale code from 0V to 0.1 • VREF and full-scale code from VREF to 0.9 • VREF. For a typical reference voltage of 5V, the full-scale input range is now 0.5V to 4.5V, which provides adequate headroom for powering the driving amplifier from a single 5.5V supply.

Applications

  • High-Accuracy Instrumentation
  • Imaging Systems
  • High-Speed Data Acquisition
  • Low-Power Conversion

产品生命周期 icon-recommended 量产

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PCN-PDN信息

讨论

RT2378-20 讨论

RE: ADUCM360利用Jlink的(SW)模式无法识别芯片
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