Overview
The AD7829BRUZ-REEL7 is an 8-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the AD7822/AD7825/AD7829 family and is known for its high-speed conversion and versatile input configurations. It features a half-flash conversion technique, which enables fast and accurate analog-to-digital conversions. The AD7829 is suitable for a variety of applications requiring high-speed data acquisition and precise analog-to-digital conversion.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 8 bits |
| Conversion Time | 420 ns |
| Analog Input Channels | One, four, or eight single-ended channels |
| Input Offset Adjust | Available |
| On-chip Track-and-Hold | Yes |
| On-chip Reference | 2.5 V |
| Operating Temperature Range | -40°C to +85°C |
| Package Type | 28-Lead TSSOP (4.4mm x 9.7mm) |
| Power Supply Rejection | Maximum change in full-scale transition due to power supply voltage variation |
Key Features
- 8-bit half-flash ADC with a conversion time of 420 ns
- Available with one, four, or eight single-ended analog input channels
- Input offset adjust capability
- On-chip track-and-hold amplifier
- On-chip 2.5 V reference voltage
- SNR performance up to 10 MHz input frequencies
- Data output lines (DB0 to DB7) normally in high impedance state, driven when RD and CS are active low
Applications
The AD7829BRUZ-REEL7 is suitable for various high-speed data acquisition applications, including:
- Medical devices requiring fast and accurate analog-to-digital conversion
- Industrial control systems needing high-speed data acquisition
- Aerospace and defense applications where precise and rapid data conversion is critical
- Automotive systems requiring robust and fast analog-to-digital conversion
Q & A
- What is the resolution of the AD7829BRUZ-REEL7?
The AD7829BRUZ-REEL7 has an 8-bit resolution. - How long does the AD7829 take to convert an analog signal to digital?
The conversion time is 420 ns. - How many analog input channels does the AD7829 support?
The AD7829 supports one, four, or eight single-ended analog input channels. - Does the AD7829 have an on-chip reference voltage?
Yes, the AD7829 has an on-chip 2.5 V reference voltage. - What is the operating temperature range of the AD7829?
The operating temperature range is -40°C to +85°C. - What type of package does the AD7829 come in?
The AD7829 comes in a 28-Lead TSSOP package. - How does the power supply rejection affect the AD7829?
Power supply rejection affects the full-scale transition but not the converter linearity. - Can the AD7829 be used in high-speed applications?
Yes, the AD7829 is suitable for high-speed data acquisition applications. - Does the AD7829 have input offset adjust capability?
Yes, the AD7829 has input offset adjust capability. - What is the purpose of the VMID pin on the AD7829?
The VMID pin is used to center the analog input span anywhere in the range of AGND to VDD.
