Overview
The AD7657BSTZ-1, produced by Analog Devices Inc., is a high-performance, 14-bit, 6-channel analog-to-digital converter (ADC) designed for various industrial and instrumentation applications. This device is part of the AD7656-1/AD7657-1/AD7658-1 family, which features reduced decoupling requirements and is pin- and software-compatible with the AD7656/AD7657/AD7658 series. The AD7657BSTZ-1 is built using the iCMOS® process, combining high voltage silicon with submicron CMOS and complementary bipolar technologies, enabling high performance and low power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| Number of Channels | 6 |
| Throughput Rate | Up to 250 kSPS |
| Analog Input Range | ±10 V, ±5 V (pin-/software-selectable) |
| Input Type | True bipolar, high impedance |
| Reference Voltage | On-chip 2.5 V reference |
| Interface | High speed parallel, serial, and daisy-chain interface modes (SPI/QSPI™/MICROWIRE™/DSP compatible) |
| Power Consumption | 140 mW at 250 kSPS with 5 V supplies |
| Standby Power | 315 µW maximum |
| Operating Temperature | −40°C to +85°C |
| Package Type | 64-lead Low Profile Quad Flat Package (LQFP) |
Key Features
- Six independent 14-bit ADCs with throughput rates up to 250 kSPS.
- True bipolar analog inputs with pin-/software-selectable ranges (±10 V, ±5 V).
- High speed parallel and serial interfaces, including SPI/QSPI™/MICROWIRE™/DSP compatibility.
- Daisy-chain feature for connecting multiple ADCs to a single serial interface.
- On-chip 2.5 V reference and reference buffers.
- Low noise, wide bandwidth track-and-hold amplifiers capable of handling input frequencies up to 4.5 MHz.
- Reduced decoupling requirements and lower bill of materials cost compared to the AD7656/AD7657/AD7658 devices.
- Integrated analog and digital I/O protection.
Applications
- Power line monitoring and measuring systems.
- Instrumentation and control systems.
- Multiaxis positioning systems.
Q & A
- What is the resolution of the AD7657BSTZ-1 ADC?
The AD7657BSTZ-1 has a resolution of 14 bits. - How many channels does the AD7657BSTZ-1 support?
The AD7657BSTZ-1 supports 6 independent channels. - What are the throughput rates of the AD7657BSTZ-1?
The throughput rates of the AD7657BSTZ-1 are up to 250 kSPS. - What are the available analog input ranges for the AD7657BSTZ-1?
The AD7657BSTZ-1 has pin-/software-selectable analog input ranges of ±10 V and ±5 V. - What type of interfaces does the AD7657BSTZ-1 support?
The AD7657BSTZ-1 supports high speed parallel, serial, and daisy-chain interface modes, including SPI/QSPI™/MICROWIRE™/DSP compatibility. - What is the power consumption of the AD7657BSTZ-1 at 250 kSPS with 5 V supplies?
The power consumption is 140 mW at 250 kSPS with 5 V supplies. - What is the standby power consumption of the AD7657BSTZ-1?
The standby power consumption is 315 µW maximum. - What is the operating temperature range of the AD7657BSTZ-1?
The operating temperature range is −40°C to +85°C. - What package type is the AD7657BSTZ-1 available in?
The AD7657BSTZ-1 is available in a 64-lead Low Profile Quad Flat Package (LQFP). - Does the AD7657BSTZ-1 have integrated protection features?
Yes, the AD7657BSTZ-1 includes integrated analog and digital I/O protection.
