Overview
The ADS1204IRHBT is a high-performance, four-channel analog-to-digital converter (ADC) produced by Texas Instruments. This device features four delta-sigma (ΔΣ) modulators, each with a 100-dB dynamic range, operating from a single 5-V supply. The ADS1204 is designed for medium- to high-resolution measurement applications and is ideal for direct connection to transducers in industrial environments. It offers a flexible resolution and speed trade-off, allowing for effective resolutions of up to 16 bits with appropriate digital filtering and modulator rates.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Resolution | 16 | - | - | Bits |
| Integral Linearity Error (INL) | ±1 | ±3 | - | LSB |
| Gain Error | ±0.08% | ±0.5% | - | FSR |
| Full-Scale Differential Range | ±2.5 | - | - | V |
| Operating Temperature Range | -40 | - | +105 | °C |
| Supply Voltage (AVDD to AGND) | 4.75 | 5 | 5.25 | V |
| Internal Clock Frequency | 8 | 10 | 12 | MHz |
| External Clock Frequency | 1 | 20 | 32 | MHz |
| Package | - | VQFN-32 (5 mm × 5 mm) | - | - |
Key Features
- Four independent delta-sigma (ΔΣ) modulators with 100-dB dynamic range
- 16-bit resolution, with effective resolutions of 10-bit or 12-bit depending on signal delay and digital filtering
- ±2.5-V input range at 2.5 V
- Internal reference voltage with 2% accuracy
- Gain error of 0.5%
- Four input reference buffers
- Onboard 20-MHz oscillator and selectable internal or external clock
- Operating temperature range: –40°C to +105°C
- Package: VQFN-32 (5 mm × 5 mm)
Applications
- Motor controls
- Current measurement
- Industrial process controls
- Smart transmitters
- Weight scales
- Pressure transducers
- Portable instruments
- Instrumentation
Q & A
- What is the resolution of the ADS1204?
The ADS1204 can achieve up to 16-bit resolution with appropriate digital filtering and modulator rates.
- What is the dynamic range of the ADS1204?
The ADS1204 has a dynamic range of 100 dB.
- What is the input range of the ADS1204?
The input range is ±2.5 V at 2.5 V.
- Does the ADS1204 have an internal reference voltage?
- What is the gain error of the ADS1204?
The gain error is ±0.5%.
- Can the ADS1204 use an external clock?
- What is the operating temperature range of the ADS1204?
The operating temperature range is –40°C to +105°C.
- What package is the ADS1204 available in?
The ADS1204 is available in a VQFN-32 (5 mm × 5 mm) package.
- What are some common applications of the ADS1204?
- How many channels does the ADS1204 have?
The ADS1204 has four independent delta-sigma modulators.
