전자부품 데이터시트 검색엔진 |
|
CS5530_0911 데이터시트(PDF) 11 Page - Cirrus Logic |
|
CS5530_0911 데이터시트(HTML) 11 Page - Cirrus Logic |
11 / 36 page CS5530 DS742F3 11 2. GENERAL DESCRIPTION The CS5530 is a ΔΣ Analog-to-Digital Converter (ADC) which uses charge-balance techniques to achieve 24-bit performance. The ADC is optimized for measuring low-level unipolar or bipolar signals in weigh scale, process control, scientific, and med- ical applications. To accommodate these applications, the ADC in- cludes a very-low-noise, chopper-stabilized instru- mentation amplifier (12 nV/ √Hz @ 0.1 Hz) with a gain of 64X. This ADC also includes a fourth-order ΔΣ modulator followed by a digital filter which pro- vides twenty selectable output word rates of 6.25, 7.5, 12.5, 15, 25, 30, 50, 60, 100, 120, 200, 240, 400, 480, 800, 960, 1600, 1920, 3200, and 3840 samples per second (MCLK = 4.9152 MHz). To ease communication between the ADCs and a micro-controller, the converters include a simple three-wire serial interface which is SPI and Mi- crowire compatible with a Schmitt-trigger input on the serial clock (SCLK). 2.1 Analog Input Figure 3 illustrates a block diagram of the CS5530. The front end includes a chopper-stabilized instru- mentation amplifier with a gain of 64X. The amplifier is chopper-stabilized and operates with a chop clock frequency of MCLK/128. The CVF (sampling) current into the instrumentation amplifier is typically 1200 pA over -40°C to +85°C (MCLK=4.9152 MHz). The common-mode plus sig- nal range of the instrumentation amplifier is (VA-) + 1.6 V to (VA+) - 1.6 V. Figure 4 illustrates the input model for the 64X am- plifier. Note: The C = 3.9 pF capacitor is for input current modeling only. For physical input capacitance see ‘Input Capacitance’ specification under Analog Characteristics. VREF+ Sinc Digital Filter 64x AIN+ AIN- X1 VREF- X1 Differential 4 Order ΔΣ Modulator th 5 Programmable Sinc Digital Filter 3 Serial Port 1000 Ω 1000 Ω 22 nF C1 PIN C2 PIN Figure 3. Front End Configuration AIN C = 3.9 pF f = V ≤ 8 mV i = fV C os os n MCLK 128 Figure 4. Input Model for AIN+ and AIN- Pins |
유사한 부품 번호 - CS5530_0911 |
|
유사한 설명 - CS5530_0911 |
|
|
링크 URL |
개인정보취급방침 |
ALLDATASHEET.CO.KR |
ALLDATASHEET 가 귀하에 도움이 되셨나요? [ DONATE ] |
Alldatasheet는? | 광고문의 | 운영자에게 연락하기 | 개인정보취급방침 | 링크교환 | 제조사별 검색 All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |