Overview
The ISOSD61TR, produced by STMicroelectronics, is a galvanic isolated second-order Sigma-Delta modulator. It utilizes embedded transformer coupling technology to convert an analog input signal into a high-speed, 25 Msps, 1-bit digital data stream. The modulator is isolated from the digital I/O section through high-speed isolated data coupling, offering superior performance compared to other isolated transceivers like optocouplers. This component is designed for high accuracy and reliability in various industrial applications.
Key Specifications
| Parameter | Value | Units | Conditions |
|---|---|---|---|
| External Clock Input Frequency | 5 to 25 | MHz | |
| Analog Input Range | ±320 | mV | |
| Resolution | 16 bits | No missing codes | |
| Signal-to-Noise Ratio (SNR) | 86 | dB | Typical |
| Total Harmonic Distortion (THD) | -83 | dB | Typical |
| Effective Number of Bits (ENOB) | 13 | bits | Typical |
| Operating Temperature Range | -40 to +125 | °C | |
| Package Type | SO-16W | ||
| Isolation Voltage (VIOTM) | 5000 | VPEAK | |
| Working Voltage (VIORM) | 1700 | VPEAK | |
| Common-mode Transient Immunity | 30 kV/µs | Typical |
Key Features
- Up to 25 MHz external clock input
- ±320 mV full scale analog input range
- 16 bits resolution, no missing codes
- Low Voltage Differential Signaling (LVDS) and Single-ended (TTL/CMOS) options
- Extended industrial temperature range: -40°C to +125°C
- SO-16 wide package
- High common-mode transient immunity: 30 kV/µs typical
- High isolation voltage: 5000 VPEAK and working voltage: 1700 VPEAK
- Safety and Regulatory approvals: IEC 60747-17 and UL1577 certified
Applications
- Current or voltage sensing in industrial motor control
- Solar inverter systems
- Uninterruptible Power Supplies (UPS)
- Electric vehicle chargers
- Telecom and server power supplies
Q & A
- What is the ISOSD61TR used for?
The ISOSD61TR is used for converting analog input signals into high-speed digital data streams, particularly in applications requiring galvanic isolation.
- What is the maximum analog input range of the ISOSD61TR?
The maximum analog input range is ±320 mV.
- What is the resolution of the ISOSD61TR?
The resolution is 16 bits with no missing codes.
- What are the operating temperature ranges for the ISOSD61TR?
The operating temperature range is -40°C to +125°C.
- What types of output signaling does the ISOSD61TR support?
The ISOSD61TR supports both Low Voltage Differential Signaling (LVDS) and Single-ended (TTL/CMOS) options.
- What is the isolation voltage of the ISOSD61TR?
The isolation voltage is 5000 VPEAK, and the working voltage is 1700 VPEAK.
- Does the ISOSD61TR have any regulatory approvals?
Yes, it is certified under IEC 60747-17 and UL1577.
- What is the common-mode transient immunity of the ISOSD61TR?
The common-mode transient immunity is 30 kV/µs typical.
- In what package is the ISOSD61TR available?
The ISOSD61TR is available in an SO-16 wide package.
- What are some typical applications of the ISOSD61TR?
Typical applications include industrial motor control, solar inverter systems, UPS, electric vehicle chargers, and telecom and server power supplies.
