仕様
| 属性 | 値 |
| Package | Tube |
| Series | iCMOS® |
| ProductStatus | Active |
| NumberofBits | 12 |
| SamplingRate(PerSecond) | 500k |
| NumberofInputs | 1, 2 |
| InputType | Differential, Pseudo-Differential, Single Ended |
| DataInterface | SPI, DSP |
| Configuration | MUX-S/H-ADC |
| Ratio-S/H:ADC | 1:1 |
| NumberofA/DConverters | 1 |
| Architecture | SAR |
| ReferenceType | External, Internal |
| Voltage-SupplyAnalog | ±12V ~ 16.5V |
| Voltage-SupplyDigital | 2.7V ~ 5.25V |
| Features | True Bipolar |
| OperatingTemperature | -40°C ~ 85°C |
| Package/Case | 14-TSSOP (0.173, 4.40mm Width) |
| SupplierDevicePackage | 14-TSSOP |
概要
Description
The AD7321BRUZ is a 12-bit, 8-channel successive approximation (SAR) analog-to-digital converter (ADC) from Analog Devices. It supports bipolar (±10V, ±5V) and unipolar (0–10V, 0–5V) input ranges, selectable per channel. Key features include:
- High throughput: Up to 500 kSPS
- SPI-compatible serial interface
- On-chip reference (2.5V) with external reference option
- Low power: 3.5 mW at 500 kSPS
The AD7321BRUZ is housed in a TSSOP-16 package and operates from a ±12V or ±15V supply for analog inputs and 2.7V–5.25V for digital logic. It includes channel sequencer and auto-scan modes, simplifying multi-channel applications.
Ideal for industrial control, data acquisition, and instrumentation where flexible input ranges and moderate speed are required.
- High throughput: Up to 500 kSPS
- SPI-compatible serial interface
- On-chip reference (2.5V) with external reference option
- Low power: 3.5 mW at 500 kSPS
The AD7321BRUZ is housed in a TSSOP-16 package and operates from a ±12V or ±15V supply for analog inputs and 2.7V–5.25V for digital logic. It includes channel sequencer and auto-scan modes, simplifying multi-channel applications.
Ideal for industrial control, data acquisition, and instrumentation where flexible input ranges and moderate speed are required.
Equivalent
Equivalent products to the AD7321BRUZ (12-bit, 8-channel SAR ADC) include:
- AD7328: 12-bit, 8-channel, higher throughput.
- AD7928: 12-bit, 8-channel, lower power.
- LTC1867: 12-bit, 8-channel, similar specs.
- MAX1270: 12-bit, 8-channel, ±10V range.
Check datasheets for exact compatibility in voltage range, speed, and interface.
- AD7328: 12-bit, 8-channel, higher throughput.
- AD7928: 12-bit, 8-channel, lower power.
- LTC1867: 12-bit, 8-channel, similar specs.
- MAX1270: 12-bit, 8-channel, ±10V range.
Check datasheets for exact compatibility in voltage range, speed, and interface.
Pinout
The AD7321BRUZ is a 12-bit, 8-channel successive approximation ADC (SAR ADC) in a 16-pin TSSOP package.
Key Functions:
- 8 single-ended or 4 pseudo-differential analog inputs (software-configurable).
- ±10V, ±5V, or 0V to +10V input ranges (programmable per channel).
- Serial SPI-compatible interface for communication.
- On-chip reference (2.5V) with external reference option.
- High throughput: 500 kSPS.
Pin Count: 16 pins (TSSOP package).
Notable pins include:
- VIN0–VIN7: Analog inputs.
- VREF: Reference input/output.
- CS, SCLK, SDI, SDO: SPI control/data pins.
- AGND/DGND: Ground pins.
Compact and versatile for multi-channel data acquisition.
Key Functions:
- 8 single-ended or 4 pseudo-differential analog inputs (software-configurable).
- ±10V, ±5V, or 0V to +10V input ranges (programmable per channel).
- Serial SPI-compatible interface for communication.
- On-chip reference (2.5V) with external reference option.
- High throughput: 500 kSPS.
Pin Count: 16 pins (TSSOP package).
Notable pins include:
- VIN0–VIN7: Analog inputs.
- VREF: Reference input/output.
- CS, SCLK, SDI, SDO: SPI control/data pins.
- AGND/DGND: Ground pins.
Compact and versatile for multi-channel data acquisition.
Application
The AD7321BRUZ is a 12-bit, 8-channel SAR ADC with ±10V input range, suitable for:
- Industrial Automation: PLCs, motor control, and process monitoring.
- Medical Equipment: Patient monitoring and diagnostic devices.
- Test & Measurement: Data acquisition systems and oscilloscopes.
- Automotive: Battery management and sensor interfaces.
- Power Monitoring: Energy metering and grid analysis.
Its high accuracy, multi-channel capability, and wide voltage range make it ideal for precision signal acquisition in harsh environments.
- Industrial Automation: PLCs, motor control, and process monitoring.
- Medical Equipment: Patient monitoring and diagnostic devices.
- Test & Measurement: Data acquisition systems and oscilloscopes.
- Automotive: Battery management and sensor interfaces.
- Power Monitoring: Energy metering and grid analysis.
Its high accuracy, multi-channel capability, and wide voltage range make it ideal for precision signal acquisition in harsh environments.
Package
The AD7321BRUZ comes in a TSSOP-16 package. This surface-mount type is compact, with a thin profile, suitable for space-constrained applications. The TSSOP-16 package ensures reliable performance for the 12-bit, 8-channel ADC, offering ease of integration in PCB designs.
