MCP3919
The MCP3919 is a 3V three channel Analog-Front-End (AFE) containing four synchronous sampling Delta-Sigma Analog-to-Digital Converters (ADC), three PGAs, phase delay compensation block, internal voltage reference, digital offset and gain error calibration registers and high-speed 20 MHz SPI compatible serial interface. A 2-wire serial interface mode greatly reduces system cost by requring only a single bidirectional isolator per phase. The MCP3919 AFE is capable of interfacing to a variety of voltage and current sensors including shunts, current transformers, Rogowski coils and Hall effect sensors
产品特性- Three Synchronous Sampling 24-bit Delta-Sigma A/D Converters
- 93.5 dB SINAD, -107 dBc THD, 112 dBFS SFDR
- Enables 0.1% Typical Active Power Measurement Error over a 10,000:1 Dynamic Range
- 2.7V - 3.6V AVDD, DVDD
- Programmable Data Rate up to 125 ksps
4 MHz Maximum Sampling Frequency
- 4 MHz Maximum Sampling Frequency
- Advanced Security Features
16-Bit CRC Checksum and Interrupt Alert
Register Map Lock
- 16-Bit CRC Checksum and Interrupt Alert
- Register Map Lock
- Oversampling Ratio up to 4096
- Ultra Low Power Shutdown Mode with <10 µA
- -122 dB Crosstalk between the Two Channels
- Low Drift 1.2V Internal Voltage Reference: 9 ppm/°C
- Differential Voltage Reference Input Pins
- High Gain PGA on Each Channel (up to 32V/V)
- Phase Delay Compensation with 1 µs Time Resolution
- Separate Data Ready Pin for Easy Synchronization
- Individual 24-bit Digital Offset and Gain Error Correction for Each Channel
- Flexible serial interface that includes both SPI and a simple 2-wire interface ideal for polyphase shunt energy meters
- Continuous Read/Write Modes for Minimum Communication
- Available in 28-Lead QFN and SSOP Packages
| 技术参数|
Parameter Name
Value
| Value | |
Measurement Error
0.1%
|
0.1%
| |
Dynamic Range
10000:1
|
10000:1
| |
Voltage Reference Drift ppm typ
9
|
9
| |
PSRR % typ
-73
|
-73
| |
Temp. Range (°C)
-40 to 125
|
-40 to 125
| |
Analog Supply Voltage AVdd Range (V)
2.7 to 3.6
|
2.7 to 3.6
| |
Digital Supply Voltage DVdd Range (V)
2.7 to 3.6
|
2.7 to 3.6
|
|
文档资料
订购型号
| Part Number | Leads | Package Type | Temp Range | Packing | 1+ | 26+ | 100+ | 1000+ | 5000+ |
|---|
| MCP3919A1-E/MQ | 28 | QFN | -40C to +125C | TUBE | 2.61 | 2.17 | 1.98 | 1.91 | 1.89 |
| MCP3919A1-E/SS | 28 | SSOP | -40C to +125C | TUBE | 2.55 | 2.12 | 1.93 | 1.86 | 1.84 |
| MCP3919A1T-E/MQ | 28 | QFN | -40C to +125C | T/R | 2.61 | 2.17 | 1.98 | 1.91 | 1.89 |
| MCP3919A1T-E/SS | 28 | SSOP | -40C to +125C | T/R | 2.55 | 2.12 | 1.93 | 1.86 | 1.84 |
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器件无铅环保信息
| PartNumber | DeviceWeight | ShippingWeight | LeadCount | PackageType | PackageWidth | SolderComposition | JEDECIndicator | RoHS | ChinaEFUP |
|---|
| MCP3919A1-E/SS | 0.229200 | 0.489362 | 28 | SSOP | .209in | Matte Tin | e3 |  |  |
| MCP3919A1T-E/SS | 0.229200 | 0.333333 | 28 | SSOP | .209in | Matte Tin | e3 | | |
| MCP3919A1-E/MQ | 0.066500 | 0.109589 | 28 | QFN | 5x5x0.9mm | Matte Tin | e3 | | |
| MCP3919A1T-E/MQ | 0.066500 | 0.166970 | 28 | QFN | 5x5x0.9mm | Matte Tin | e3 | | |
