Overview
The AD7928BRUZ is a high-performance, 8-channel, 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This successive approximation ADC operates from a single 2.7 V to 5.25 V power supply and features a throughput rate of up to 1 MSPS. It is designed for applications requiring high speed, low power consumption, and precise analog-to-digital conversion. The device includes a low noise, wide bandwidth track-and-hold amplifier and a built-in sequence controller, allowing for preprogrammed selection and sequential conversion of channels. This makes it ideal for various sensor signal acquisition applications such as strain gauge weights, pH or EC measurements, and flow meters.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Package | 20-TSSOP (0.173, 4.40mm Width) |
| Number of Analog In Channels | 8 |
| Resolution | 12-bit |
| Sampling Rate (Per Second) | Up to 1 MSPS |
| Operating Supply Voltage | 2.7 V to 5.25 V |
| Input Range | 0 V to REF IN or 0 V to 2 × REF IN |
| Output Format | SERIAL (SPI/QSPI/MICROWIRE/DSP compatible) |
| Signal to Noise Ratio (SNR) | Not specified, but high SINAD at 50 kHz input frequency |
| Differential Nonlinearity (DNL) | 1.5 LSB |
| Power Consumption | 2 mA max with 3 V supplies, 2.7 mA max with 5 V supplies |
| Operating Temperature Range | −40°C to +85°C |
Key Features
- High-speed, low-power, 8-channel successive approximation ADC with up to 1 MSPS throughput rate.
- Single 2.7 V to 5.25 V power supply operation.
- Low noise, wide bandwidth track-and-hold amplifier capable of handling input frequencies over 8 MHz.
- Built-in sequence controller for preprogrammed selection and sequential conversion of channels.
- No pipeline delays, allowing for efficient data acquisition.
- Flexible power and serial clock speed management.
- Shutdown mode with 0.5 μA maximum current consumption.
- 20-lead TSSOP package, qualified for automotive applications.
Applications
- Sensor signal acquisition in various industrial and medical applications.
- Strain gauge weight measurements.
- pH or EC measurements.
- Flow meters and other industrial measurement devices.
- Automotive applications due to its qualified temperature range and reliability.
Q & A
- What is the resolution of the AD7928BRUZ ADC?
The AD7928BRUZ has a 12-bit resolution.
- What is the maximum sampling rate of the AD7928BRUZ?
The maximum sampling rate is up to 1 MSPS.
- What is the operating voltage range of the AD7928BRUZ?
The device operates from a single 2.7 V to 5.25 V power supply.
- How many analog input channels does the AD7928BRUZ have?
The AD7928BRUZ has 8 analog input channels.
- What is the output format of the AD7928BRUZ?
The output format is serial, compatible with SPI, QSPI, MICROWIRE, and DSP interfaces.
- Does the AD7928BRUZ have any pipeline delays?
No, there are no pipeline delays associated with this ADC.
- What is the power consumption of the AD7928BRUZ at maximum throughput rates?
At maximum throughput rates, the device consumes 2 mA maximum with 3 V supplies and 2.7 mA maximum with 5 V supplies.
- What is the operating temperature range of the AD7928BRUZ?
The operating temperature range is −40°C to +85°C.
- Is the AD7928BRUZ qualified for automotive applications?
- What package type does the AD7928BRUZ come in?
The device comes in a 20-lead TSSOP package.
