Overview
The AD7734BRUZ-REEL7, produced by Analog Devices Inc., is a high precision, high throughput analog front end. This device is particularly suited for high resolution multiplexing applications due to its true 16-bit peak-to-peak resolution and a total conversion time of 500 μs (2 kHz channel switching). It operates from a single +5 V analog supply and features four single-ended input channels with unipolar or true bipolar input ranges up to ±10 V. The AD7734 also includes overrange and underrange detection capabilities and can accept analog input overvoltages up to ±16.5 V without affecting adjacent channels.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Analog Input Voltage Range | ±10 V, 0 V to +10 V, ±5 V, 0 V to +5 V | V | Unipolar or true bipolar input ranges | ||
| Analog Input Overvoltage | ±16.5 V | V | Without degrading adjacent channels | ||
| Analog Supply Voltage (AVDD) | 4.75 V | 5 V | 5.25 V | V | Nominal |
| Conversion Time | 500 μs | μs | At 2 kHz channel switching | ||
| Channel-to-Channel Isolation | 110 dB | dB | At DC | ||
| Operating Temperature Range | –40°C | +105°C | °C | Extended industrial temperature range | |
| Package Type | 28-Lead TSSOP (4.4mm x 9.7mm) |
Key Features
- High precision, high throughput analog front end with true 16-bit peak-to-peak resolution
- Four single-ended input channels with unipolar or true bipolar input ranges up to ±10 V
- Overrange and underrange detection capabilities
- Accepts analog input overvoltages up to ±16.5 V without degrading adjacent channels
- Differential reference input with “No-Reference” detect capability
- Per channel system calibration options
- Digital serial interface configurable for 3-wire operation, compatible with microcontrollers and digital signal processors
- Schmitt triggered interface inputs
Applications
The AD7734BRUZ-REEL7 is ideally suited for high resolution multiplexing applications. It is commonly used in various industrial and medical applications where high precision and throughput are critical. This includes data acquisition systems, industrial control systems, and medical diagnostic equipment.
Q & A
- What is the resolution of the AD7734BRUZ-REEL7?
The AD7734BRUZ-REEL7 achieves a true 16-bit peak-to-peak resolution.
- What is the conversion time of the AD7734BRUZ-REEL7?
The conversion time is 500 μs at 2 kHz channel switching.
- What are the input voltage ranges of the AD7734BRUZ-REEL7?
The device features input voltage ranges of ±10 V, 0 V to +10 V, ±5 V, and 0 V to +5 V.
- Can the AD7734BRUZ-REEL7 handle overvoltage inputs?
Yes, it can accept analog input overvoltages up to ±16.5 V without degrading the performance of adjacent channels.
- What is the operating temperature range of the AD7734BRUZ-REEL7?
The device operates over an extended industrial temperature range of –40°C to +105°C.
- What type of package does the AD7734BRUZ-REEL7 come in?
The device is packaged in a 28-Lead TSSOP (4.4mm x 9.7mm).
- Is the AD7734BRUZ-REEL7 compatible with microcontrollers and digital signal processors?
Yes, the digital serial interface is compatible with microcontrollers and digital signal processors.
- Does the AD7734BRUZ-REEL7 support per channel system calibration?
Yes, the device supports per channel system calibration options.
- What is the purpose of the “No-Reference” detect capability?
The “No-Reference” detect capability is part of the differential reference input, allowing the device to detect when no reference voltage is applied.
- Can the AD7734BRUZ-REEL7 be used in high resolution multiplexing applications?
Yes, it is ideally suited for high resolution multiplexing applications due to its high precision and throughput.
