The ADS1205 is a two-channel, high-performance, delta-sigma (
) modulator with more than 98dB dynamic range, operating from a single +5V supply. The differential inputs are ideal for direct connection to transducers in an industrial environment. With the appropriate digital filter and modulator rate, the device can be used to achieve 16-bit analog-to-digital (A/D) conversion with no missing codes. Effective resolution of 14 bits can be obtained with a digital filter bandwidth of 40kHz at a modulator rate of 10MHz. The ADS1205 is designed for use in high-resolution measurement applications including current measurements, smart transmitters, industrial process control, and resolvers. It is available in a QFN-24 (4x4) package.
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| Resolution (Bits) | 16 |
| Number of input channels | 2 |
| Interface type | Serial |
| Architecture | Delta-Sigma Modulator |
| Input type | Differential, Single-ended |
| Multichannel configuration | Simultaneous Sampling |
| Rating | Catalog |
| Reference mode | External, Internal |
| Input voltage range (max) (V) | 5 |
| Input voltage range (min) (V) | 0 |
| Features | Oscillator |
| Operating temperature range (°C) | -40 to 85 |
| Power consumption (typ) (mW) | 59 |
| Analog supply (min) (V) | 4.5 |
| Analog supply voltage (max) (V) | 5.5 |
| SNR (dB) | 88.9 |
| Digital supply (min) (V) | 2.7 |
| Digital supply (max) (V) | 5.5 |
| VQFN (RGE) | 24 | 16 mm² 4 x 4 |
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