Overview
The AD7608BSTZ-RL, manufactured by Analog Devices Inc., is an 18-bit, 8-channel simultaneous sampling analog-to-digital data acquisition system (DAS). This component is designed for high-precision data acquisition and features a successive approximation analog-to-digital converter (ADC), a second-order antialiasing filter, and a flexible digital filter. It operates from a single 5 V supply and can handle ±10 V and ±5 V true bipolar input signals at throughput rates up to 200 kSPS for all channels. The AD7608 is packaged in a 64-lead LQFP (10mm x 10mm) and is RoHS compliant.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 18 bits | |
| Number of Channels | 8 | |
| Sampling Rate | Up to 200 kSPS | |
| Analog Input Voltage Range | ±10 V, ±5 V | |
| Analog Input Impedance | 1 MΩ | |
| Input Clamp Protection | Up to ±16.5 V | |
| Antialiasing Filter 3 dB Cutoff Frequency | 22 kHz | |
| Signal-to-Noise Ratio (SNR) | 98 dB | |
| Total Harmonic Distortion (THD) | −107 dB | |
| Power Consumption | 100 mW (active), 25 mW (standby) | |
| Package Type | 64-lead LQFP (10mm x 10mm) | |
| ESD Rating | 7 kV on analog input channels |
Key Features
- Simultaneous sampling of all 8 channels
- Second-order antialiasing analog filter with a 3 dB cutoff frequency of 22 kHz and 40 dB antialias rejection at 200 kSPS
- Flexible digital filter for improved SNR and reduced 3 dB bandwidth
- On-chip accurate reference and reference buffer (2.5 V)
- High-speed serial and parallel interfaces (SPI/QSPI/MICROWIRE/DSP compatible)
- Analog input clamp protection up to ±16.5 V
- Single supply operation (5 V) with no need for external bipolar supplies or driver op amps
- Low power consumption: 100 mW active, 25 mW standby
Applications
- Power line monitoring and protection systems
- Multiphase motor controls
- Instrumentation and control systems
- Multiaxis positioning systems
- Data acquisition systems (DAS)
Q & A
- What is the resolution of the AD7608BSTZ-RL?
The AD7608BSTZ-RL has an 18-bit resolution.
- How many channels does the AD7608BSTZ-RL support?
The AD7608BSTZ-RL supports 8 channels.
- What is the maximum sampling rate of the AD7608BSTZ-RL?
The maximum sampling rate is up to 200 kSPS for all channels.
- What are the available analog input voltage ranges for the AD7608BSTZ-RL?
The available ranges are ±10 V and ±5 V.
- What is the input impedance of the AD7608BSTZ-RL?
The input impedance is 1 MΩ regardless of the sampling frequency.
- What is the antialiasing filter's 3 dB cutoff frequency?
The 3 dB cutoff frequency of the antialiasing filter is 22 kHz.
- What is the signal-to-noise ratio (SNR) of the AD7608BSTZ-RL?
The SNR is 98 dB.
- What is the total harmonic distortion (THD) of the AD7608BSTZ-RL?
The THD is −107 dB.
- What is the power consumption of the AD7608BSTZ-RL in active and standby modes?
The power consumption is 100 mW in active mode and 25 mW in standby mode.
- What is the package type of the AD7608BSTZ-RL?
The package type is a 64-lead LQFP (10mm x 10mm).
