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LTC2435-1IGN データシート(PDF) 1 Page - Linear Technology |
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LTC2435-1IGN データシート(HTML) 1 Page - Linear Technology |
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1 / 40 page  LTC2435/LTC2435-1 1 24351fa ■ 2× ×× × × Speed Up Version of the LTC2430: 15Hz Output Rate, 60Hz Notch—LTC2435; 13.75Hz Output Rate, Simultaneous 50Hz/60Hz Notch—LTC2435-1 ■ Differential Input and Differential Reference with GND to VCC Common Mode Range ■ 3ppm INL, No Missing Codes ■ 10ppm Gain Error ■ 0.8ppm Noise ■ Single Conversion Settling Time for Multiplexed Applications ■ Internal Oscillator—No External Components Required ■ Single Supply 2.7V to 5.5V Operation ■ Low Supply Current (200µA,4µA in Auto Sleep) ■ 20-Bit ADC in Narrow SSOP-16 Package (SO-8 Footprint) The LTC ®2435/2435-1 are 2.7V to 5.5V micropower 20-bit differential ∆Σ analog to digital converters with integrated oscillator, 3ppm INL and 0.8ppm RMS noise. They use delta-sigma technology and provide single cycle settling time for multiplexed applications. Through a single pin, the LTC2435 can be configured for better than 110dB input differential mode rejection at 50Hz or 60Hz ±2%, or it can be driven by an external oscillator for a user defined rejection frequency. The LTC2435-1 can be con- figured for better than 87dB input differential mode rejec- tion over the range of 49Hz to 61.2Hz (50Hz and 60Hz ±2% simultaneously). The internal oscillator requires no external frequency setting components. The converters accept any external differential reference voltage from 0.1V to VCC for flexible ratiometric and remote sensing measurement configurations. The full- scale differential input range is from – 0.5VREF to 0.5VREF. The reference common mode voltage, VREFCM, and the input common mode voltage, VINCM, may be indepen- dently set anywhere within the GND to VCC range of the LTC2435/LTC2435-1. The DC common mode input rejec- tion is better than 120dB. The LTC2435/LTC2435-1 communicate through a flexible 3-wire digital interface which is compatible with SPI and MICROWIRE TM protocols. , LTC and LT are registered trademarks of Linear Technology Corporation. 20-Bit No Latency ∆Σ TM ADCs with Differential Input and Differential Reference No Latency ∆Σ is a trademark of Linear Technology Corporation. MICROWIRE is a trademark of National Semiconductor Corporation. Protected by U.S. Patents including 6140950, 6169506. VCC FO REF+ REF– SCK IN+ IN– SDO GND CS 214 3 4 13 5 6 12 1, 7, 8, 9, 10, 15, 16 11 REFERENCE VOLTAGE 0.1V TO VCC ANALOG INPUT RANGE –0.5VREF TO 0.5VREF = INTERNAL OSC/50Hz REJECTION (LTC2435) = EXTERNAL CLOCK SOURCE = INTERNAL OSC/60Hz REJECTION (LTC2435) = INTERNAL 50Hz/60Hz REJECTION (LTC2435-1) 3-WIRE SPI INTERFACE 1µF 2.7V TO 5.5V LTC2435/ LTC2435-1 2435 TA01 VCC FEATURES DESCRIPTIO TYPICAL APPLICATIO S APPLICATIO S ■ Direct Sensor Digitizer ■ Weight Scales ■ Direct Temperature Measurement ■ Gas Analyzers ■ Strain Gage Transducers ■ Instrumentation ■ Data Acquisition ■ Industrial Process Control ■ 6-Digit DVMs 10 8 6 4 2 0 –2 –4 –6 –8 –10 INPUT VOLTAGE (V) –2.5 –1.5 –0.5 0.5 1.5 2435 G04 2.5 FO = GND VCC = 5V VREF = 5V VINCM = VINCM = 2.5V TA = –45°C TA = 25°C TA = 85°C Integral Nonlinearity vs Input |
同様の部品番号 - LTC2435-1IGN |
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同様の説明 - LTC2435-1IGN |
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