CA-IS1306M25W Isolated Sigma‐Delta Modulator
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$0.85-$0.95 |
$3.7-$5.5 |
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CA-IS1306M25W |
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The CA‐IS1306x family of devices is series of precision isolated sigma‐delta (Σ‐Δ) modulator and optimized for shunt resistor‐based 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 muchhigher frequency. 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 drivers transfer the output of the modulator 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 bit‐stream transmission in noisy environments.
The CA‐IS1306x devices’ ultra‐low input voltage range (±250mV) allows the use of small sense resistor to reduce power dissipation and a very low, 0.2% gain error ensures measurement accuracy. This family of devices also features fail‐safe output to support high safety system design.
TheCA‐IS1306x devices 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‐IS1306x family is specified over the ‐40°C to +125°C operating temperature range and is available in 8‐pin SOIC wide body package.
Product Specification
| High lifetime |
>40 years |
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isolation rating
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| Typical CMTI |
±150 kV/μs |
| Wide operating temperature range |
‐40°C to 125°C |
| Safety regulatory approvals |
▪ VDE 0884‐17 isolation certification(CA‐IS1200G)
▪ UL according to UL1577
▪ IEC 61010‐1:2010+A1 certifications
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Features
• Full‐Scale Sense Voltage Range: ±250 mV
• Uncoded Bitstream Output
• Ultra‐Low Input Offset Voltage and Gain Error
▪ ±100 µV (max) at 25°C input offset voltage
▪ ±0.2% (max) at 25°C gain error
• Low Drift
▪ ±3.5 μV/°C (max) input offset tempco
▪ ±40 ppm/°C (max) gain drift
• Excellent AC Performance
▪ SNR: 85dB (typ)
▪ THD: ‐93dB (typ)
• 16‐Bit Resolution with No Missing Codes
• Wide Power Supply Operating Range
▪ 3.3V to 5.5V supply range for both high‐side and low‐side
• Robust Isolation Barrier
▪ High lifetime: >40 years
▪ Up to 5000 VRMS isolation rating
▪ ±150 kV/μs typical CMTI
• Fault Diagnostic Functions Improve System Safety
• Wide Operating Temperature Range: –40°C to 125°C
Applications
• Industrial Motor Controls and Drives
• Isolated Power Supplies
• Process Signal Isolation
Packing & Delivery:
1. Shipping Method: Express (SF Express, DHL, TNT, FedEx, etc.), shipping charges are paid by the buyer.
2. Packaging Method: pressure-proof, moisture proof, shock-proof packaging.
3. Shipping Time: In stock items: 3-5 days. Lead Time orders: 45-65 days.
ONE-STOP Electronic Parts Supply Chain:
1. 18 years of experience in the electronic components industry
2. Online service provided by over 80+ sales and technical.
3. Serving over 4500 global customers.
4. Annual sales exceeding 50 million USD, have an upward trend every year.
5. During the industry downturn, our sales of Chinese brand chips increased against the trend. Contributed a significant portion of the company's performance.
6. In the recently years, most customers have reduced costs and adopted Chinese chip brands. From initially worrying about quality and not daring to try them out, our customers now are continuing to place orders every month.
7. Our Product line includes MCU, amplifiers, isolation devices, logic devices, power devices, etc.
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