Overview
The AD7985BCPZ is a 16-bit, 2.5 MSPS successive approximation analog-to-digital converter (SAR ADC) produced by Analog Devices Inc. This component is designed for high-speed and low-power applications, featuring an internal conversion clock, an internal reference and buffer, error correction circuits, and a versatile serial interface port. The AD7985 operates in two modes: a turbo mode for high-speed conversions and a normal mode for reduced power consumption. It is available in a 20-lead Lead Frame Chip Scale Package (LFCSP) and is compatible with digital logic families ranging from 1.8 V to 2.7 V.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Sampling Rate | Up to 2.5 MSPS (turbo mode) |
| Supply Voltage | 4.75 V to 5.25 V |
| Operating Temperature | -40°C to +85°C |
| Package Type | 20-lead LFCSP |
| Digital Interface | SPI-compatible serial interface |
| Reference Voltage | Internal reference with buffer |
| Analog Input Range | 0 V to REF with respect to IN- |
Key Features
- High-speed sampling rate of up to 2.5 MSPS in turbo mode and reduced power consumption in normal mode.
- Internal conversion clock and internal reference with buffer, eliminating the need for external components.
- Error correction circuits for improved accuracy.
- On-chip track-and-hold amplifier with no pipeline delay or latency, ideal for multiplexed channel applications.
- Compatible with 1.8 V to 2.7 V digital logic families.
- Space-saving 20-lead LFCSP package.
Applications
- Data acquisition systems requiring high-speed and low-power consumption.
- Multiplexed channel applications due to its on-chip track-and-hold and lack of pipeline delay).
- Industrial control systems, medical devices, and other applications needing precise and fast analog-to-digital conversion).
- Embedded systems and IoT devices where power efficiency and high performance are crucial).
Q & A
- What is the resolution of the AD7985BCPZ?
The AD7985BCPZ has a resolution of 16 bits).
- What is the maximum sampling rate of the AD7985BCPZ?
The maximum sampling rate is up to 2.5 MSPS in turbo mode).
- What is the operating temperature range of the AD7985BCPZ?
The operating temperature range is -40°C to +85°C).
- What type of package does the AD7985BCPZ come in?
The AD7985BCPZ comes in a 20-lead Lead Frame Chip Scale Package (LFCSP)).
- Is the AD7985BCPZ compatible with different digital logic families?
Yes, it is compatible with 1.8 V to 2.7 V digital logic families).
- Does the AD7985BCPZ have an internal conversion clock and reference?
Yes, it features an internal conversion clock and an internal reference with buffer).
- What is the analog input range of the AD7985BCPZ?
The analog input range is from 0 V to REF with respect to IN-).
- Is the AD7985BCPZ suitable for multiplexed channel applications?
Yes, due to its on-chip track-and-hold and lack of pipeline delay or latency).
- What are some common applications of the AD7985BCPZ?
Common applications include data acquisition systems, industrial control systems, medical devices, and embedded systems).
- Does the AD7985BCPZ have error correction circuits?
Yes, it includes error correction circuits for improved accuracy).
