Analog Devices Inc. ADAQ7769-1 24-Bit Data Acquisition (DAQ) μModule®
Analog Devices ADAQ7769-1 24-Bit Precision Data Acquisition (DAQ) μModule® is a system that encapsulates signal conditioning, conversion, and processing blocks into one system-in-package (SiP) design. This design enables rapid development of highly compact, high-performance precision DAQ systems.
The ADAQ7769-1 supports a wide range of single-ended input amplitudes, with a maximum unipolar range of 0V to +24V or 0V to -24V, or a bipolar range of ±16V, basing its flexibility on the PGA supply voltages. With eight programmable binary PGA gain settings and three pin-selectable AAF gain settings, ADAQ7769-1 offers additional system dynamic range and improved signal chain noise performance with input signals of lower amplitude. The input signal is fully buffered with a very low typical input bias current of 1pA. This feature allows easy input impedance matching and enables the ADAQ7769-1 to interface directly to sensors with high output impedance.
The Analog Devices ADAQ7769-1 has an operating temperature range of -40°C to +105°C. It is available in a 12mm x 6mm, 84-ball BGA package with 0.8mm ball pitch, making it suitable for multiple-channel applications. The device's footprint is eleven times smaller than that of the same solution using discrete components.
Features
- Highly integrated data-acquisition solution
- Wide input common-mode range with a maximum unipolar input range of +24V or -24V
- Eight programmable binary gain options from 1V/V to 128V/V
- Three pin-selectable AAF gain options of G = 1V/V, 0.364V/V, 0.143V/V
- Fourth-order AAF with maximum flatness and linear phase, with full aliasing protection and 90dB typical rejection
- Excellent device-to-device phase matching and drift
- Combined precision AC and DC performance
- Total system dynamic range up to 136dB
- -113dB typical THD at 1kHz input tone, total gain = 1
- 81dB typical DC CMRR at total gain = 1
- 1pA (typ.) input bias current at +25°C
- ±3.3ppm typical INL
- 5ppm/°C maximum gain drift
- ±0.5° maximum device-to-device phase mismatch at 20kHz
- Programmable output data rate, filter type, and latency - linear phase digital filter options
- Wideband low ripple FIR filter (256kSPS, 110kHz max input BW)
- Sinc5 filter (1.024MSPS, 208.9kHz maximum input BW, 4µS maximum group delay)
- Sinc3 filter (50/60Hz rejection)
- Integrated LDO
- Built-in supply decoupling capacitors
- Configuration through pin strapping or SPI interface
- Digital interface optimized for isolated applications
- Suite of diagnostic check mechanisms
- -40°C to +105°C operating temperature range
- Available in a 12.00mm × 6.00mm 84-ball CSP_BGA package with a 0.80mm ball pitch, 11x footprint reduction versus a discrete solution
Applications
- Universal input measurement platforms
- Electrical test and measurement
- Sound and vibration, acoustic and material science research and development
- Control and hardware in loop verification
- Condition monitoring for predictive maintenance
- Audio tests
Functional Block Diagram
Development Tool
Analog Devices Inc. EV-ADAQ7769-1FMC1Z DAQ Evaluation Kit
The kit enables evaluation of the ADAQ7769-1, a 24-bit, 1MSPS, μModule® DAQ solution.