Серия аналогово цифровых преобразователей (АЦП) CA-IS1204

Chipanalog

Общие характеристики

 Раздел Аналогово Цифровые Преобразователи (АЦП)
Корпус SO-16 SOIC16
Разрядность АЦП
Кол-во измерительных каналов
Тип аналого-цифрового преобразователя
Уровень сигнал/шум
Потребляемая мощность
Диапазон рабочих температур

Документация на серию CA-IS1204

CA-IS1204W Version 1.00,2022/08/09 Shanghai Chipanalog Microelectronics Co., Ltd. CA-IS1204 5kVRMS Isolated Sigma-Delta Modulator 1 Key Features • • Differential Input Voltage Range: ±250 mV Ultra-Low Input Offset Voltage and Drift ▪ ±1mV (max) @ 25°C input offset voltage Low Gain Error and Drift ▪ ±2% (max) @ 25°C gain error Excellent AC Performance ▪ SNR: 85dB (typ) ▪ THD: -91dB (typ) Robust Isolation Barrier ▪ High lifetime: >40 years ▪ Up to 5000VRMS isolation rating ▪ ±150 kV/μs typical CMTI Fault Diagnostic Functions Improve System Safety Wide Operating Temperature Range: –40°C to 125°C 16-pin wide-body SOIC package Safety Regulatory Approvals(Pending) ▪ 7070 VPK isolation per DIN V VDE V 0884-11 (VDE V 0884-11): 2017-01 ▪ 5000 VRMS isolation for 1 minute per UL 1577 ▪ CQC and TUV certification approvals • • • • • • • 2 Applications • • • • Industrial Motor Controls and Drives Uninterruptible Power Supplies(UPS) Isolated Power Supply Frequency Inverters 3 Description The CA-IS1204 device is series of precision isolated sigmadelta (Σ-Δ) modulator and optimized for shunt resistorbased current sensing or other small signal measurement applications. The input current-sense amplifier monitors current flow through a shunt (sense) resistor and the sigma-delta modulator converts the analog input to a digital bit stream of 1's and 0's at a much higher frequency. Copyright © 2020, Chipanalog Incorporated Shanghai Chipanalog Microelectronics Co., Ltd. The digital output stage of CA-IS1204 provides uncoded CMOS bit-stream output. The analog input-side (high-side) and digital output-side (low-side) are separated by unique silicon oxide (SiO2) capacitive isolation barriers that provide up to 5kVRMS galvanic isolation per UL1577 certification, and isolator driver transfers the modulator output across this isolation barrier. In systems with different voltage domains, this isolation technical is typically used to protect the low voltage side from the high voltage side in case of any faults. These devices also feature up to 150kV/μs common mode transient immunity and enable efficient signal transmission in noisy environments. The CA-IS1204 device features low input voltage range (±250mV) that allows the use of small sense resistor to reduce power dissipation, a low (±2%, max) gain error ensures measurement accuracy. This device also features fail-safe output to support high safety system design. The device is specified for operation with 5MHz to 21MHz clock input. The internal sigma-delta modulator combined with an external digital decimation sinc3 filter can achieve 85 dB signal-to-noise ratio (SNR) at 78.1 Ksps. The CA-IS1204W is specified over the -40°C to +125°C operating temperature range and is available in 16-pin SOIC wide body package. Device Information Part Number Package Body Size(NOM) CA-IS1204 SOIC16-WB (W) 10.30 mm × 7.50 mm 1 PDF
Документация на серию CA-IS1204 

Дата модификации: 02.12.2023

Размер: 2.98 Мб

25 стр.

    Товары серии CA-IS1204

    Наименование i Упаковка
    CA-IS1204W (CHIPANLG)
     
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