SAR ADC
SAR ADC
Leveraging our unique low-power architecture and patents, we offer ultra-low-power CMOS Hall sensors. With high signal-to-noise ratio signal reconstruction technology, we also provide ultra-high sensitivity magnetic field sampling products.
Product Model
DAD7606
DAD7606 is a 16-bit, 8-channel, simultaneous-sampling data acquisition system (DAS). Each device integrates an analog input clamp protection circuit, a second-order anti-aliasing filter, a track-and-hold amplifier, a 16-bit charge-redistribution successive-approximation (SAR) analog-to-digital converter (ADC), a flexible digital filter, a 2.5 V reference source, a reference buffer, and high-speed serial
and parallel interfaces.
The DAD7606 operates from a single 5 V power supply and can handle true bipolar input signals of ±10 V and ±5 V ranges. All channels are capable of sampling at throughput rates up to 200 kSPS. The input clamp protection circuitry can withstand input voltages up to ±16.5 V. Regardless of the sampling rate, the analog input impedance of the DAD7606 remains 1 MΩ.Operating from a single supply with on-chip filtering and high input impedance, the DAD7606 eliminates the need for external driver amplifiers and bipolar power supplies.
and parallel interfaces.
The DAD7606 operates from a single 5 V power supply and can handle true bipolar input signals of ±10 V and ±5 V ranges. All channels are capable of sampling at throughput rates up to 200 kSPS. The input clamp protection circuitry can withstand input voltages up to ±16.5 V. Regardless of the sampling rate, the analog input impedance of the DAD7606 remains 1 MΩ.Operating from a single supply with on-chip filtering and high input impedance, the DAD7606 eliminates the need for external driver amplifiers and bipolar power supplies.
The DAD7606 features an anti-aliasing filter with a 3 dB cutoff frequency of 45 kHz. When operating at a 200 kSPS sampling rate, it provides 46 dB of anti-aliasing attenuation. The flexible digital filter, controlled via pins, can improve the signal-to-noise ratio (SNR) and reduce the 3 dB bandwidth.
Features
- Single-supply operation: +2.5 V to +5.5 V.
- 8 simultaneous-sampling input channels.
- True bipolar analog input ranges: ±10 V, ±5 V.
- Single 5 V analog supply; VDRIVE range: 2.3 V to 5 V.
- Analog input clamp protection.
- Input buffer with 1 MΩ analog input impedance.
- Second-order anti-aliasing analog filter.
- On-chip precision voltage reference and buffer with 5 ppm/°C temperature drift.
- 16-bit, 200 kSPS ADC on all channels.
- Oversampling capability provided through the digital filter.
- Flexible parallel/serial interface compatible with SPI / QSPI / MICROWIRE / DSP.
- 7 kV ESD rating on analog input channels.
- Input channel performance: 89 dB SNR, −106 dB THD.
- ±0.5 LSB INL, ±0.5 LSB DNL.
- Low power consumption: 130 mW (typical), 35 mW in standby mode.
- Operating temperature range: −40°C to +85°C / −40°C to +125°C.
- 64-lead LQFP package.
Applications
- Multiphase motor control
- Power-line monitoring and protection systems
- Instrumentation and control systems
- Multiaxis positioning systems
- Data acquisition systems (DAS)
Specifications
Product Model | Resolution (bits) | Sampling Rate | Channel | SNR (dBFS) | SFDR (dBc) | Power Dissipation (mw) | Temperature Range (°C) | Package Type | Datasheet |
|---|---|---|---|---|---|---|---|---|---|
DAD7606-C | 18 | 200 kSPS | 8 | 89 | -110 | 130 | -40°C ~ 85°C | TQFP-64 | |
DAD7606-E | 18 | 200 kSPS | 8 | 89 | -110 | 130 | -40°C ~ 125°C | TQFP-64 |
