Overview
The AD7657YSTZ-1 is a high-performance, multi-channel analog-to-digital converter (ADC) designed by Analog Devices Inc. for data acquisition systems. This component is part of the AD7656/AD7657/AD7658 series, which utilizes the iCMOS® (industrial CMOS) process, combining high voltage silicon with submicron CMOS and complementary bipolar technologies. This technology enables the development of high-performance analog ICs with reduced power consumption and package size.
The AD7657YSTZ-1 is particularly suited for applications requiring precise and simultaneous sampling of multiple analog channels, making it a robust choice for industrial, medical, and embedded systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | Analog Devices Inc. | |
| Part Number | AD7657YSTZ-1 | |
| Number of Bits | 14 | |
| Number of Inputs | 6 | |
| Number of A/D Converters | 6 | |
| Sampling Rate (Per Second) | 250 kSPS | |
| Input Type | Single Ended | |
| Data Interface | SPI, Parallel, DSP | |
| Configuration | S/H-ADC | |
| Architecture | SAR (Successive Approximation) | |
| Reference Type | External, Internal | |
| Voltage - Supply, Analog | 5V | |
| Voltage - Supply, Digital | 5V | |
| Package / Case | 64-LQFP (10x10) | |
| Operating Temperature | -40°C ~ 125°C | |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- Simultaneous Sampling: Capable of simultaneous conversion of all six channels, ensuring synchronized data acquisition.
- True Bipolar Inputs: Can accommodate true bipolar input signals in the ±4 × VREF and ±2 × VREF ranges.
- High-Speed Interfaces: Supports high-speed parallel, serial, and daisy-chain interface modes, compatible with SPI, QSPI™, MICROWIRE™, and DSP.
- Low Power Consumption: Operates at 140 mW at 250 kSPS with 5 V supplies and has a standby mode of 315 µW maximum.
- High Noise Performance: Features low noise, wide bandwidth track-and-hold amplifiers that can handle input frequencies up to 12 MHz.
- On-Chip Reference: Includes an on-chip 2.5 V reference and reference buffers.
- Wide Operating Temperature Range: Operates within a wide temperature range from -40°C to 125°C.
Applications
- Industrial Automation: Suitable for precise data acquisition in industrial control systems.
- Medical Imaging: Used in medical imaging devices requiring high accuracy and simultaneous sampling.
- Data Logging: Ideal for data logging applications where multiple channels need to be sampled simultaneously.
- Embedded Systems: Compatible with various microcontrollers and digital signal processors, making it a versatile choice for embedded systems.
- Power Line Monitoring and Measuring Systems: Utilized in systems that require fast throughput rates and high accuracy.
- Instrumentation and Control Systems: Employed in instrumentation and control systems that demand precise and reliable data acquisition.
- Multiaxis Positioning Systems: Used in multiaxis positioning systems that require simultaneous sampling of multiple analog channels.
Q & A
- What is the AD7657YSTZ-1 used for?
The AD7657YSTZ-1 is a high-performance, multi-channel analog-to-digital converter designed for data acquisition systems.
- How many analog input channels does the AD7657YSTZ-1 have?
The AD7657YSTZ-1 has six independent analog input channels.
- What is the resolution of the AD7657YSTZ-1?
The AD7657YSTZ-1 has a 14-bit resolution.
- What is the sampling rate of the AD7657YSTZ-1?
The AD7657YSTZ-1 has a sampling rate of up to 250 kSPS.
- What types of interfaces does the AD7657YSTZ-1 support?
The AD7657YSTZ-1 supports high-speed parallel, serial, and daisy-chain interface modes, compatible with SPI, QSPI™, MICROWIRE™, and DSP.
- What is the operating temperature range of the AD7657YSTZ-1?
The AD7657YSTZ-1 operates within a wide temperature range from -40°C to 125°C.
- Is the AD7657YSTZ-1 RoHS compliant?
Yes, the AD7657YSTZ-1 is lead-free and RoHS compliant.
- What is the power consumption of the AD7657YSTZ-1 at 250 kSPS?
The AD7657YSTZ-1 operates at 140 mW at 250 kSPS with 5 V supplies.
- Does the AD7657YSTZ-1 support true bipolar input signals?
Yes, the AD7657YSTZ-1 can accommodate true bipolar input signals in the ±4 × VREF and ±2 × VREF ranges.
- What is the package type of the AD7657YSTZ-1?
The AD7657YSTZ-1 is packaged in a 64-LQFP (10x10) package.
