| Resolution (Bits) | 16 |
| Number of input channels | 2 |
| Interface type | Serial |
| Architecture | Delta-Sigma Modulator |
| Input type | Differential, Single-Ended |
| Multi-channel configuration | Simultaneous Sampling |
| Rating | Catalog |
| Reference mode | Ext, Int |
| Input range (Max) (V) | 5 |
| Input range (Min) (V) | 0 |
| Features | Oscillator |
| Operating temperature range (C) | -40 to 105 |
| Power consumption (Typ) (mW) | 65.5 |
| Analog voltage AVDD (Min) (V) | 4.5 |
| SNR (dB) | 90 |
| Analog voltage AVDD (Max) (V) | 5.5 |
| INL (Max) (+/-LSB) | 8 |
| Digital supply (Min) (V) | 2.7 |
| Digital supply (Max) (V) | 5.5 |
- 16-Bit Resolution
- 13-Bit Linearity
- ±2.3V Specified Input Voltage Range
- Internal Reference Voltage: 2%
- Gain Error: 0.5%
- Two Independent Delta-Sigma Modulators
- Two Input Reference Buffers
- On-Chip Oscillator
- Selectable Internal or External Clock
- Specified Temperature Range: –40°C to +105°C
- TSSOP-24 Package
- APPLICATIONS
- Motor Control
- Current Measurement
- Resolver
- Industrial Process Control
- Instrumentation
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The ADS1209 is a two-channel, high-performance, delta-sigma (
) modulator with an 86dB dynamic range, operating from a single +5V supply. The differential inputs are ideal for direct connection to signal sources 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 accuracy of 14 bits can be obtained with a digital filter bandwidth of 20kHz at a modulator rate of 10MHz. The ADS1209 is designed for use in high-resolution measurement applications including current measurements, industrial process control, and resolvers. It is available in a TSSOP-24 package and is specified for operation over the ambient temperature range of –40°C to +105°C.