ChipApex | Global Electronic Components Supplier
AD7862AR-2
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC ADC 12BIT DUAL 250KSPS 28SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Number of Bits：12
- Sampling Rate (Per Second)：250k
- Number of Inputs：-
- Input Type：-
- Data Interface：Parallel
- Configuration：-
- Ratio - S/H:ADC：-
- Number of A/D Converters：2
- Architecture：-
- Reference Type：-
- Voltage - Supply, Analog：-
- Voltage - Supply, Digital：-
- Features：-
- Operating Temperature：-40°C ~ 85°C
- Package / Case：28-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：28-SOIC
- Mounting Type：Surface Mount
Download product information
Overview
The AD7862AR-2 is a dual 12-bit successive approximation analog-to-digital converter manufactured by Analog Devices Inc. It operates from a single +5 V supply and features two simultaneous sampling channels with four total input lines. The device supports an unipolar input voltage range of 0 V to 2.5 V and utilizes straight binary output coding. Key electrical specifications include a maximum conversion time of 3.6 μs, a throughput rate of 250 kSPS, and a typical power dissipation of 60 mW in normal mode. The unit is housed in a 28-lead SOIC package and functions within a temperature range of -40°C to +85°C.
Feature Summary
- Simultaneous sampling and conversion of two independent channels to preserve relative phase information.
- Integrated internal +2.5 V reference with the option for external reference connection.
- High-speed parallel interface compatible with standard microprocessor control signals.
- Automatic power-down mode that activates after conversion completion to minimize energy consumption.
Applications
- AC Motor Control
- Uninterrupted Power Supplies
- Data Acquisition Systems
- Communications
Procurement Notes
Verify the specific ordering suffix AR-2 confirms the unipolar 0 V to 2.5 V input range and straight binary coding. Confirm the package type matches the required 28-lead Small Outline Package (SOIC). Ensure compatibility with the system's +5 V logic levels and check for any RoHS compliance requirements relevant to the manufacturing date code.
Selection Notes
Select this component when a single-supply operation is required for unipolar signal acquisition. The AD7862AR-2 is appropriate for applications needing simultaneous sampling on two channels with a 0 V to 2.5 V input span. Consider the 3.6 μs conversion time and 250 kSPS throughput against system timing constraints. Evaluate the need for the integrated reference versus an external precision source based on accuracy requirements.
Part Context
The AD7862 belongs to a family of high-speed, low-power dual ADCs from Analog Devices. It is pin-compatible with the AD7863, which offers 14-bit resolution, allowing for potential upgrades without board redesign. The device is fabricated using Linear Compatible CMOS (LC2MOS) technology, combining bipolar precision with CMOS low power characteristics.
Replacement Considerations
The AD7862ARZ-2 is the lead-free version of this component. For higher resolution needs, the AD7863 series serves as a pin-compatible 14-bit upgrade. Other variants like AD7862AR-3 or AD7862AR-10 share the same package but differ in input voltage ranges and output coding schemes.
