Overview
The AD7856ARSZ is a high-speed, low-power 14-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component operates from a single 5V power supply and is designed for a variety of applications requiring high accuracy and low power consumption. The AD7856ARSZ features automatic calibration on power-up, self- and system calibration options, and multiple power-down modes to optimize power usage. It is available in a 24-lead small shrink outline package (SSOP) and supports both single-ended and pseudo-differential input channels.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | AD7856ARSZ |
| Description | IC ADC 14BIT 8CHAN 5V 24SSOP |
| Number of Bits | 14 |
| Sampling Rate (Per Second) | 285k |
| Number of Inputs | 4, 8 |
| Input Type | Pseudo-Differential, Single Ended |
| Data Interface | SPI |
| Configuration | MUX-S/H-ADC |
| Ratio - S/H:ADC | 1:1 |
| Number of A/D Converters | 1 |
| Architecture | SAR (Successive Approximation Register) |
| Reference Type | External, Internal |
| Voltage - Supply, Analog | 5V |
| Voltage - Supply, Digital | 5V |
| Package / Case | 24-SSOP (0.209", 5.30mm Width) |
| Operating Temperature | -40°C ~ 105°C |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- Single 5V supply operation
- High-speed conversion rate of 285 kSPS
- Automatic calibration on power-up and self- and system calibration options
- Low power consumption: typically 60 mW for normal operation and 5.1 mW in power-down mode
- Flexible power management options including automatic power-down after conversion
- Support for eight single-ended or four pseudo-differential input channels
- Versatile serial I/O port (SPI/QSPI/8051/µP)
- Small size package (24-SSOP)
Applications
The AD7856ARSZ is suitable for a wide range of applications, including:
- Battery-powered devices where low power consumption is critical
- Data acquisition systems requiring high accuracy and speed
- Industrial control systems
- Medical devices
- Aerospace and defense applications
Q & A
- Q: What is the resolution of the AD7856ARSZ ADC?
A: The AD7856ARSZ has a resolution of 14 bits.
- Q: What is the sampling rate of the AD7856ARSZ?
A: The AD7856ARSZ has a sampling rate of 285 kSPS.
- Q: What types of input channels does the AD7856ARSZ support?
A: The AD7856ARSZ supports eight single-ended or four pseudo-differential input channels.
- Q: What is the power supply requirement for the AD7856ARSZ?
A: The AD7856ARSZ operates from a single 5V power supply.
- Q: What is the operating temperature range of the AD7856ARSZ?
A: The AD7856ARSZ operates over a temperature range of -40°C to 105°C.
- Q: Is the AD7856ARSZ RoHS compliant?
A: Yes, the AD7856ARSZ is lead-free and RoHS compliant.
- Q: What is the package type of the AD7856ARSZ?
A: The AD7856ARSZ is available in a 24-lead small shrink outline package (SSOP).
- Q: Does the AD7856ARSZ support self-calibration?
A: Yes, the AD7856ARSZ supports self- and system calibration options.
- Q: What is the typical power consumption of the AD7856ARSZ during normal operation?
A: The typical power consumption of the AD7856ARSZ during normal operation is 60 mW.
- Q: How can I ensure the authenticity of the AD7856ARSZ from Analog Devices Inc.?
A: Ensure you purchase from authorized distributors who rigorously test and verify the credentials of original manufacturers and authorized agents.
