công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
AD598 bảng dữ liệu(PDF) 4 Page - Analog Devices |
|
AD598 bảng dữ liệu(HTML) 4 Page - Analog Devices |
4 / 16 page AD598–Typical Characteristics (at +25 C and V S = 15 V, unless otherwise noted) THEORY OF OPERATION A block diagram of the AD598 along with an LVDT (Linear Variable Differential Transformer) connected to its input is shown in Figure 5. The LVDT is an electromechanical trans- ducer whose input is the mechanical displacement of a core and whose output is a pair of ac voltages proportional to core posi- tion. The transducer consists of a primary winding energized by OSC AMP AMP VOUT LVDT EXCITATION (CARRIER) 11 17 10 16 2 3 FILTER A–B A+B VB VA AD598 Figure 5. AD598 Functional Block Diagram an external sine wave reference source, two secondary windings connected in series, and the moveable core to couple flux be- tween the primary and secondary windings. The AD598 energizes the LVDT primary, senses the LVDT secondary output voltages and produces a dc output voltage proportional to core position. The AD598 consists of a sine wave oscillator and power amplifier to drive the primary, a de- coder which determines the ratio of the difference between the LVDT secondary voltages divided by their sum, a filter and an output amplifier. The oscillator comprises a multivibrator which produces a triwave output. The triwave drives a sine shaper, which pro- duces a low distortion sine wave whose frequency is determined by a single capacitor. Output frequency can range from 20 Hz to 20 kHz and amplitude from 2 V rms to 24 V rms. Total har- monic distortion is typically –50 dB. The output from the LVDT secondaries consists of a pair of sine waves whose amplitude difference, (VA–VB), is proportional to core position. Previous LVDT conditioners synchronously detect this amplitude difference and convert its absolute value to –20 0 20 60 100 140 –60 –200 –240 –160 –120 –80 –40 0 40 TEMPERATURE – °C OFFSET PSRR 12–15V OFFSET PSRR 15–18V GAIN PSRR 12–15V GAIN PSRR 15–18V Figure 1. Gain and Offset PSRR vs. Temperature –20 0 20 60 100 140 –60 –25 –30 –35 –20 –15 –10 –5 0 5 TEMPERATURE – °C OFFSET CMRR ± 3V GAIN CMRR ± 3V Figure 3. Gain and Offset CMRR vs. Temperature –20 0 20 60 100 140 –60 –40 –60 –80 –20 0 20 40 80 120 TEMPERATURE – °C Figure 2. Typical Gain Drift vs. Temperature –20 0 20 60 100 140 –60 –10 –20 0 10 20 TEMPERATURE – °C Figure 4. Typical Offset Drift vs. Temperature REV. A –4– |
Số phần tương tự - AD598 |
|
Mô tả tương tự - AD598 |
|
|
Link URL |
Chính sách bảo mật |
ALLDATASHEET.VN |
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không? [ DONATE ] |
Alldatasheet là | Quảng cáo | Liên lạc với chúng tôi | Chính sách bảo mật | Trao đổi link | Tìm kiếm theo nhà sản xuất 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 |