Overview
The ADC78H89CIMT/NOPB is a low-power, seven-channel CMOS 12-bit analog-to-digital converter (ADC) produced by Texas Instruments. This device features a conversion throughput of 500 kilosamples per second (KSPS) and is based on a successive-approximation register architecture with an internal track-and-hold circuit. It is designed to accept up to seven input signals on pins AIN1 through AIN7 and provides output serial data in straight binary format, compatible with several standards including SPI™, QSPI™, MICROWIRE™, and many common DSP serial interfaces. The ADC78H89 operates over an industrial temperature range of −40°C to +85°C and is packaged in a 16-lead TSSOP package.
Key Specifications
| Specification | Value |
|---|---|
| Conversion Rate | 500 KSPS |
| Resolution | 12-bit |
| Differential Nonlinearity (DNL) | ± 1 LSB (max) |
| Integral Nonlinearity (INL) | ± 1 LSB (max) |
| Analog Supply Voltage (AVDD) | +2.7V to +5.25V |
| Digital Supply Voltage (DVDD) | +2.7V to AVDD |
| Power Consumption (3V Supply) | 1.5 mW (typ) |
| Power Consumption (5V Supply) | 8.3 mW (typ) |
| Power Consumption in Power-Down Mode (3V Supply) | 0.3 µW |
| Power Consumption in Power-Down Mode (5V Supply) | 0.5 µW |
| Operating Temperature Range | −40°C to +85°C |
| Package Type | 16-Lead TSSOP |
Key Features
- Seven input channels for analog signal conversion
- Variable power management with independent analog and digital supplies
- Compatibility with SPI™, QSPI™, MICROWIRE™, and many common DSP serial interfaces
- Low power consumption with typical values of 1.5 mW at 3V and 8.3 mW at 5V supply
- Power-down feature reducing power consumption to 0.3 µW at 3V or 0.5 µW at 5V supply
- Packaged in a 16-lead TSSOP package
Applications
The ADC78H89CIMT/NOPB is suitable for a variety of applications requiring low-power, multi-channel analog-to-digital conversion. These include industrial control systems, medical devices, automotive systems, and any other application where multiple analog signals need to be converted to digital data efficiently. Its compatibility with various serial interfaces makes it versatile for integration into different system architectures.
Q & A
- What is the conversion rate of the ADC78H89CIMT/NOPB?
The conversion rate is 500 kilosamples per second (KSPS). - How many input channels does the ADC78H89CIMT/NOPB have?
The device has seven input channels. - What is the resolution of the ADC78H89CIMT/NOPB?
The resolution is 12 bits. - What are the compatible serial interfaces for the ADC78H89CIMT/NOPB?
The device is compatible with SPI™, QSPI™, MICROWIRE™, and many common DSP serial interfaces. - What is the typical power consumption of the ADC78H89CIMT/NOPB at 3V and 5V supplies?
The typical power consumption is 1.5 mW at 3V and 8.3 mW at 5V supply. - What is the power consumption in power-down mode for the ADC78H89CIMT/NOPB?
The power consumption in power-down mode is 0.3 µW at 3V and 0.5 µW at 5V supply. - What is the operating temperature range of the ADC78H89CIMT/NOPB?
The operating temperature range is −40°C to +85°C. - In what package type is the ADC78H89CIMT/NOPB available?
The device is packaged in a 16-lead TSSOP package. - Can the analog and digital supplies be independent for the ADC78H89CIMT/NOPB?
Yes, the analog and digital supplies can be independent. - What are some typical applications for the ADC78H89CIMT/NOPB?
Typical applications include industrial control systems, medical devices, and automotive systems.
