Overview
The ADS8325IBDGKR is a 16-bit, high-speed, microPower sampling Analog-to-Digital (A/D) converter produced by Texas Instruments. This device is designed to operate within a supply voltage range of 2.7V to 5.5V, making it suitable for a variety of applications, including battery-operated and portable systems. The ADS8325IBDGKR is known for its very low noise, excellent linearity, and low power consumption, with an average power dissipation of less than 1mW at a 10kHz data rate and 4.5mW at a 100kHz data rate.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VDD) | 2.7 | 3.6 | 5.5 | V |
| Reference Input Voltage | 2.5 | VDD | V | |
| Resolution | 16 | Bits | ||
| No Missing Codes | 15 | Bits | ||
| Integral Linearity Error (INL) | ±1.5 | ±4 | LSB | |
| Offset Error (VOS) | ±0.5 | ±1 | mV | |
| Gain Error (GERR) | ±12 | ±24 | LSB | |
| Conversion Time (tCONV) | 6.667 | μs | ||
| Acquisition Time (tAQ) | 1.875 | μs | ||
| Throughput Rate | 100 | kSPS | ||
| Clock Frequency | 0.024 | 2.4 | MHz | |
| Operating Temperature Range | –40 | +85 | °C | |
| Power Dissipation (at 100kHz) | 4.5 | 7.5 | mW |
Key Features
- Low Power Consumption: The ADS8325IBDGKR consumes very little power, with an average power dissipation of less than 1mW at a 10kHz data rate and 4.5mW at a 100kHz data rate.
- High Speed: Capable of up to 100,000 conversions per second.
- Excellent Linearity: Integral linearity error of ±1.5LSB to ±4LSB.
- Low Noise: Very low noise with a noise level of 3LSBPP.
- Differential Input: Differential analog input with a maximum differential voltage equal to the reference voltage.
- Serial Interface: SPI/SSI compatible serial interface for easy communication.
- Small Package Options: Available in MSOP-8 and SON-8 packages, with the SON package size being the same as a 3x3 QFN package.
- Pin Compatibility: Pin-compatible with other Texas Instruments A/D converters such as the ADS7816, ADS7822, ADS7826, ADS7827, ADS7829, and ADS8320.
Applications
- Battery-Operated Systems: Ideal for battery-powered devices due to its low power consumption.
- Remote Data Acquisition: Suitable for remote data acquisition modules where power efficiency is crucial.
- Isolated Data Acquisition: Used in isolated data acquisition systems where high accuracy and low noise are required.
- Portable and Handheld Devices: Perfect for portable and handheld devices that require high-speed A/D conversion with minimal power usage.
- Simultaneous Multichannel Systems: Can be used in simultaneous multichannel systems where multiple A/D conversions are needed in real-time.
Q & A
- What is the resolution of the ADS8325IBDGKR?
The ADS8325IBDGKR has a resolution of 16 bits.
- What is the supply voltage range for the ADS8325IBDGKR?
The supply voltage range is from 2.7V to 5.5V.
- What is the maximum throughput rate of the ADS8325IBDGKR?
The maximum throughput rate is 100 kSPS.
- What type of interface does the ADS8325IBDGKR use?
The ADS8325IBDGKR uses a SPI/SSI compatible serial interface.
- What are the package options available for the ADS8325IBDGKR?
The device is available in MSOP-8 and SON-8 packages.
- Is the ADS8325IBDGKR pin-compatible with other Texas Instruments A/D converters?
Yes, it is pin-compatible with other Texas Instruments A/D converters such as the ADS7816, ADS7822, ADS7826, ADS7827, ADS7829, and ADS8320.
- What is the typical power dissipation at a 100kHz data rate?
The typical power dissipation at a 100kHz data rate is 4.5mW.
- What is the operating temperature range for the ADS8325IBDGKR?
The operating temperature range is from –40°C to +85°C.
- Does the ADS8325IBDGKR have differential analog inputs?
Yes, it has differential analog inputs with a maximum differential voltage equal to the reference voltage.
- What is the noise level of the ADS8325IBDGKR?
The noise level is very low, specified as 3LSBPP.
