Overview
The AD7732BRU, manufactured by Analog Devices Inc., is a high-precision, high-throughput analog-to-digital converter (ADC) designed for various industrial and process control applications. This 24-bit sigma-delta ADC is optimized for fast channel switching and offers high resolution with no missing codes. It features on-chip per channel system calibration and supports multiple input ranges, making it versatile for different measurement requirements.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | - | - | 24 bits | - | No missing codes |
| Nonlinearity | - | - | ±0.0015% | - | - |
| Input Ranges | - | - | ±5 V, ±10 V, 0 to +5 V, 0 to +10 V | - | - |
| Analog Supply Voltage | 4.5 | 5 | 5.5 | V | Nominal 5 V |
| Digital Supply Voltage | 2.7 | 3/5 | 5.5 | V | 3 V or 5 V |
| Operating Temperature | -40 | - | +105 | °C | Extended industrial temperature range |
| Package | - | - | 28-Lead TSSOP | - | - |
| Interface | - | - | 3-wire serial interface (SPI, QSPI, MICROWIRE, DSP compatible) | - | - |
Key Features
- High resolution ADC with 24 bits and no missing codes
- Optimized for fast channel switching
- On-chip per channel system calibration
- Two fully differential analog inputs
- Overvoltage tolerant up to ±16.5 V without affecting adjacent channels
- Single-supply operation with 5 V analog supply and 3 V or 5 V digital supply
- 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP
- Schmitt trigger on logic inputs
- Differential reference input with “No-Reference” detect capability
Applications
- PLCs (Programmable Logic Controllers) and DCS (Distributed Control Systems)
- Multiplexing applications
- Process control
- Industrial instrumentation
Q & A
- What is the resolution of the AD7732BRU ADC?
The AD7732BRU has a resolution of 24 bits with no missing codes. - What are the input ranges supported by the AD7732BRU?
The AD7732BRU supports input ranges of ±5 V, ±10 V, 0 to +5 V, and 0 to +10 V. - What is the operating temperature range of the AD7732BRU?
The AD7732BRU operates over an extended industrial temperature range of –40°C to +105°C. - What type of package does the AD7732BRU come in?
The AD7732BRU comes in a 28-Lead TSSOP package. - Is the AD7732BRU overvoltage tolerant?
Yes, the AD7732BRU is overvoltage tolerant up to ±16.5 V without affecting adjacent channels. - What interfaces are supported by the AD7732BRU?
The AD7732BRU supports a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP. - Does the AD7732BRU have on-chip calibration capabilities?
Yes, the AD7732BRU features on-chip per channel system calibration. - What are the typical applications of the AD7732BRU?
The AD7732BRU is typically used in PLCs, DCS, multiplexing applications, process control, and industrial instrumentation. - Is the AD7732BRU single-supply or dual-supply?
The AD7732BRU is a single-supply device with a 5 V analog supply and 3 V or 5 V digital supply. - Does the AD7732BRU have Schmitt trigger inputs?
Yes, the AD7732BRU has Schmitt trigger inputs on its logic inputs.
