ADS7128IRTER
Analog to Digital Converters (ADC)
Technical Specifications
| Type | Description |
|---|---|
| Quiescent Current (Iq) | 430uA |
| Integral non - linearity | 2LSB |
| Voltage Reference | Built-in |
| Clock/Oscillator | Built-in |
| Resolution(Bits) | 12;1MHz |
| S/N Ratio | 72dB |
| DNL (LSB) | 0.2LSB |
| ADC architecture | SAR |
| Type | Description |
|---|---|
| Programmable Gain | Not supported |
| Operating Temp | -40°C ~ +85°C |
| Interface | I2C |
| Working Voltage V | 3.75 V |
| Channels | 8.0 |
| Maximum Clock Speed | - |
| Features | Multiplexers;Auto calibration;Soft reset;Power-on reset |
| Package / Case | WQFN-16-EP |
Product Introduction
The ADS7128 is an easy-to-use 8-channel multiplexed 12-bit successive approximation register analog-to-digital converter (SAR ADC). The 8 channels can be independently configured as analog inputs, digital inputs, or digital outputs. The device features an internal oscillator for performing the ADC conversion process. The ADS7128 communicates via an I²C-compatible interface and can operate in autonomous or single-shot conversion modes. The ADS7128 implements analog monitoring functions through per-channel event-triggered interrupts using a digital window comparator with programmable high and low thresholds, hysteresis, and an event counter. The ADS7128 has a built-in cyclic redundancy check (CRC) function for data read/write operations and power-on configuration. The ADS7128 features a root mean square (RMS) module that can calculate 16-bit true RMS results for any analog input channel. The integrated zero-crossing detection (ZCD) module can trigger transient suppression and hysteresis when approaching the configurable threshold.
Features
- Compact package: 3mm × 3mm WQFN
- 8-channel, configurable as any combination of: up to 8 analog inputs, digital inputs, or digital outputs
- GPIO for I/O expansion: open-drain, push-pull digital outputs
- Analog monitoring: programmable threshold per channel with event counter for transient suppression
- Wide operating range: AVDD: 2.35V to 5.5V; DVDD: 1.65V to 5.5V; temperature range: -40°C to +85°C
- CRC for read/write operations: data read/write CRC; power-on configuration CRC
- I²C interface: up to 3.4MHz (high-speed); 8 configurable I²C addresses
- Programmable averaging filter
- RMS module: 16-bit true RMS output; programmable RMS time window
- Zero-crossing detection module: ZCD output for any analog input; built-in transient suppression and hysteresis
- Digitally adjustable detection threshold
Applications
- - Monitoring functions - Portable instruments - Appliances - Telecom infrastructure - Power monitoring
Datasheet
Alternative Parts
Common ADS7128IRTER alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Sourcing Information
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