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The ADAQ7767-1 from Analog Devices is a 24-bit precision data acquisition (DAQ) μModule® system that encapsulates signal conditioning, conversion, and processing blocks into one system in package (SiP) design that enables rapid development of highly compact, high performance precision DAQ systems.
It supports a wide variety of input types, which include unipolar and bipolar single-ended, pseudo differential, and differential signals, with a maximum differential range of ±28.672 V and a common-mode voltage range of −16 V to +12 V using IN3. With the precision of Analog Devices iPASSIVES™ technology, the ADAQ7767-1 performs with excellent common-mode rejection ratio (CMRR). The three pairs of pin-selectable gain settings offer additional system dynamic range and improved signal chain noise performance with input signals of lower amplitude. In applications requiring high input impedance, the ADAQ7767-1 allows the customer to choose their preferred input amplifier.
A fourth-order low-pass analog filter combined with the user-programmable digital filter ensures that the signal chain is protected against the high frequency noise and out of band tones presented at the input node from aliasing back into the band of interest. The analog low pass filter is carefully designed to achieve high phase linearity and maximum in-band magnitude response flatness. Constructed with iPASSIVES technology, the resistor network used within the analog low-pass filter possess superior resistance matching in both absolute values and over temperature. As a result, the signal chain performance is maintained with minimum drift over temperature, and the ADAQ7767-1 has an excellent device-to-device phase matching performance.
A high-performance analog-to-digital (ADC) driver amplifier ensures the full settling of the ADC input at the maximum sampling rate. The driver circuit is designed to have minimum additive noise, error, and distortion while maintaining stability. The fully differential architecture helps maximizing the signal chain dynamic range.
- Highly integrated data acquisition solution
- 3 pin-selectable gain options: 1 (IN1), 0.364 (IN2), or 0.143 (IN3)
- Maximum input range of ±28.672 V differential (IN3)
- Wide input common-mode range: −16 V to +12 V (IN3)
- Fourth-order AAF with maximum flatness and linear phase
- Anti-aliasing protection with 105 dB typical rejection (IN1)
- Excellent device-to-device phase matching and drift
- Combined precision ac and dc performance
- Total system dynamic range up to 124 dB
- -118 dB typical THD at ±28.672 V input range (IN3)
- 78.0 dB typical DC CMRR at ±28.672 V input range (IN3)
- ±3.8 ppm of FSR typical INL
- 3.1 ppm/°C max gain error drift
- ± 0.096 maximum device-to-device phase angle mismatch at 20 kHz
- Programmable output data rate, filter type, and latency
- Linear phase digital filter options:
- Wideband low ripple FIR filter (256 kSPS, 110 kHz maximum input bandwidth)
- Sinc5 Filter (1.024kSPS, 208.9 kHz maximum input bandwidth, 4 μs maximum group delay)
- Sinc3 Filter (50/60 Hz rejection)
- Integrated LDO
- Built-in supply decoupling capacitors
- Configuration through pin strapping or SPI
- Digital interface optimized for isolated applications
- Suite of diagnostic check mechanisms
- Operating temperature range: −40°C to +105°C
- Packaging: 12 mm × 6 mm × 1.6 mm, 84-ball CSP_BGA with 0.8 mm ball pitch
- 8x footprint reduction vs. discrete solution
Development Boards, Kits, Programmers | Analog to Digital Converters (ADCs) Evaluation Boards
Mfr Part # | Quantity Available | Price | Series | Package | Product Status | Number of A/D Converters | Number of Bits | Sampling Rate (Per Second) | Data Interface | Input Range | Power (Typ) @ Conditions | Utilized IC / Part | Supplied Contents | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
5 In Stock | 1 : $139.90000 Box | - | Box | Active | 1 | 24 | 1M | SPI | ±28.672V | 117mW @ 1MSPS | ADAQ7767-1 | Board(s) |
