Overview
The AD7938BCPZ-REEL7 is a high-performance, 12-bit, 8-channel successive approximation (SAR) analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This component is designed for high-speed, low-power applications and features a versatile set of configurations to meet various data acquisition needs.
The AD7938BCPZ-REEL7 operates from a single 2.7 V to 5.25 V power supply and supports throughput rates up to 1.5 MSPS. It includes a low noise, wide bandwidth, differential track-and-hold amplifier capable of handling input frequencies up to 50 MHz. The device is packaged in a 32-lead LFCSP (5mm x 5mm with EP) and is RoHS compliant.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Number of Channels | 8 |
| Conversion Rate | Up to 1.5 MSPS |
| Power Supply | 2.7 V to 5.25 V |
| Input Types | Single-ended, fully differential, pseudo differential |
| Package Type | 32-Lead LFCSP (5mm x 5mm with EP) |
| Operating Temperature | –40°C to +85°C |
| Reference Voltage | On-chip 2.5 V, or external reference (0.1 V to VDD) |
| Power Dissipation | Low power, full shutdown mode: 2 µA maximum |
Key Features
- High-speed conversion rates up to 1.5 MSPS
- Low noise, wide bandwidth differential track-and-hold amplifier
- Eight analog input channels with channel sequencer for sequential conversion
- Support for single-ended, fully differential, and pseudo differential analog inputs
- Accurate on-chip 2.5 V reference or external reference option
- Flexible power management options including full shutdown mode
- Standard control inputs for easy interfacing with microprocessors and DSPs
- High speed parallel interface in word/byte modes
Applications
- Data acquisition systems
- Industrial control systems
- Medical devices requiring high precision ADCs
- Aerospace and defense applications
- Automotive systems requiring high-speed data conversion
- Test and measurement equipment
Q & A
- What is the resolution of the AD7938BCPZ-REEL7 ADC?
The AD7938BCPZ-REEL7 has a resolution of 12 bits.
- How many analog input channels does the AD7938BCPZ-REEL7 have?
The AD7938BCPZ-REEL7 has eight analog input channels.
- What is the maximum conversion rate of the AD7938BCPZ-REEL7?
The maximum conversion rate is up to 1.5 MSPS.
- What types of analog inputs can the AD7938BCPZ-REEL7 handle?
The device can handle single-ended, fully differential, and pseudo differential analog inputs.
- What is the power supply range for the AD7938BCPZ-REEL7?
The device operates from a single 2.7 V to 5.25 V power supply.
- What is the package type of the AD7938BCPZ-REEL7?
The device is packaged in a 32-Lead LFCSP (5mm x 5mm with EP).
- Does the AD7938BCPZ-REEL7 have an on-chip reference voltage?
Yes, it has an accurate on-chip 2.5 V reference, or it can be overdriven by an external reference.
- What is the operating temperature range of the AD7938BCPZ-REEL7?
The operating temperature range is –40°C to +85°C.
- How does the AD7938BCPZ-REEL7 manage power consumption?
The device features flexible power management options, including a full shutdown mode with a maximum power dissipation of 2 µA.
- Is the AD7938BCPZ-REEL7 RoHS compliant?
Yes, the AD7938BCPZ-REEL7 is RoHS compliant.
