Overview
The ADS8320E/250 is a 16-bit, high-speed, sampling analog-to-digital (A/D) converter produced by Texas Instruments. This device operates over a supply range of 2.7 V to 5.25 V and is designed for low power consumption, making it ideal for battery-operated and portable systems. The ADS8320E/250 uses a successive approximation register (SAR) architecture based on capacitive redistribution, which includes a sample and hold function. It can perform up to 100,000 conversions per second while consuming less than 4.5 mW from the power source.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 16 | - | - | Bits |
| Sampling Rate | - | - | 100 kHz | - |
| Supply Voltage | 2.7 V | - | 5.25 V | V |
| Power Consumption at 100 kHz and 2.7 V | - | 1.8 mW | - | mW |
| Power Consumption at 10 kHz and 2.7 V | - | 0.3 mW | - | mW |
| Power Down Current | - | - | 3 µA | µA |
| Package Type | - | - | 8-Pin VSSOP | - |
| Integral Linearity Error (FSR) | ±0.008% | - | ±0.018% | % |
| Offset Error | ±1 mV | - | ±2 mV | mV |
| Gain Error (FSR) | ±0.05% | - | - | % |
| Reference Voltage Range | 0.5 V | - | VCC | V |
Key Features
- High-speed sampling rate of up to 100 kHz
- Low power consumption: 1.8 mW at 100 kHz and 2.7 V, 0.3 mW at 10 kHz and 2.7 V
- Ultra-low power down current of 3 µA
- 8-Pin VSSOP package
- Pin-compatible with ADS7816 and ADS7822
- Synchronous serial (SPI/SSI compatible) interface
- Differential input with reference voltage range from 0.5 V to VCC
- No missing codes and high linearity performance
Applications
- Battery-operated systems
- Remote data acquisition
- Isolated data acquisition
- Simultaneous sampling, multichannel systems
- Industrial controls
- Robotics
- Vibration analysis
Q & A
- What is the resolution of the ADS8320E/250?
The resolution of the ADS8320E/250 is 16 bits.
- What is the maximum sampling rate of the ADS8320E/250?
The maximum sampling rate is 100 kHz.
- What is the supply voltage range for the ADS8320E/250?
The supply voltage range is from 2.7 V to 5.25 V.
- How much power does the ADS8320E/250 consume at 100 kHz and 2.7 V?
The power consumption is approximately 1.8 mW at 100 kHz and 2.7 V.
- What is the power down current of the ADS8320E/250?
The power down current is 3 µA.
- What type of package does the ADS8320E/250 come in?
The ADS8320E/250 comes in an 8-Pin VSSOP package.
- Is the ADS8320E/250 pin-compatible with other models?
Yes, it is pin-compatible with ADS7816 and ADS7822.
- What type of interface does the ADS8320E/250 use?
The ADS8320E/250 uses a synchronous serial (SPI/SSI compatible) interface.
- What is the range of the reference voltage for the ADS8320E/250?
The reference voltage range is from 0.5 V to VCC.
- What are some common applications of the ADS8320E/250?
Common applications include battery-operated systems, remote data acquisition, isolated data acquisition, simultaneous sampling multichannel systems, industrial controls, robotics, and vibration analysis.
