Features and Benefits
- Integrated fully differential ADC driver with signal scaling
- Wide input common-mode voltage range
- High common-mode rejection
- Single-ended to differential conversion
- Pin selectable input range with overrange
- Input ranges with 4.096 V REFBUF: ±10 V, ±5 V, ±4.096 V, ±2.5 V, and ±1.5 V
- Gain/attenuation options: 0.37, 0.73, 0.87, 1.38, and 2.25
- Critical passive components
- 0.005% precision matched resistor array for FDA
- 9 mm × 9 mm, 0.8 mm pitch, 100-ball CSP_BGA package
- 2.5× footprint reduction vs. discrete solution
- Low power, dynamic power scaling, power-down mode
- 143 mW typical at 15 MSPS
- Throughput: 15 MSPS, no pipeline delay
- INL error: ±3.1 ppm typical, ±6.2 ppm maximum
- (Gain = 0.73, gain = 0.87, gain = 1.38, gain = 2.25)
- SINAD: 90.4 dB typical at 20 kHz (gain = 0.73)
- THD: −117 dB at 1 kHz, −110 dB at 100 kHz (gain = 0.73)
- Gain error: ±0.005%FS typical
- Gain error drift: ±0.13 ppm/°C typical
- On-board reference buffer with VCMO generation
- Serial LVDS interface
- Wide operating temperature range: −40°C to +85°C
The ADAQ23878 is a precision, high speed, μModule® data acquisition solution that reduces the development cycle of a precision measurement systems by transferring the design burden of component selection, optimization, and layout from the designer to the device.
Using System-in-Package (SIP) technology, the ADAQ23878 reduces end system component count by combining multiple common signal processing and conditioning blocks in a single device, including a low noise, fully differential ADC driver (FDA), a stable reference buffer, and a high speed, 18-bit, 15 MSPS successive approximation register (SAR) ADC.
The ADAQ23878 also incorporates the critical passive components with superior matching and drift characteristics using Analog Devices, Inc., iPassive® technology to minimize temperature dependent error sources and to offer optimized performance. The fast settling of the ADC driver stage and no latency of the SAR ADC provide a unique solution for high channel count multiplexed signal chain architectures and control loop applications.
The small footprint, 9 mm × 9 mm BGA package enables smaller form factor instruments without sacrificing performance. The system integration solves many design challenges while the device still provides the flexibility of a configurable ADC driver feedback loop to allow gain or attenuation adjustments, as well as fully differential or single-ended to differential input. A single 5 V supply operation is possible while achieving optimum performance from the device.
The ADAQ23878 features a serial low voltage differential signaling (LVDS) digital interface with one-lane or two-lane output modes, allowing the user to optimize the interface data rate for each application. The specified operation of the ADAQ23878 is from −40°C to +85°C.
- Automatic test equipment
- Data acquisition
- Hardware in the Loop (HiL)
- Power analyzers
- Non-destructive test (acoustic emissions)
- Mass spectrometry
- Travelling wave fault location
- Medical imaging and instruments
Markets and Technologies
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
The EVAL-ADAQ23878FMCZ evaluation board (see Figure 1 in the user guide) enables simplified evaluation of the ADAQ23878 15 MSPS, 18-bit, high speed, precision μModule® data acquisition solution. The EVAL-ADAQ23878FMCZ demonstrates the performance of the ADAQ23878 μModule and is a versatile tool for a variety of applications.
The ADAQ23878 μModule combines multiple common signal processing and conditioning blocks into a single device that includes a low noise, fully differential analog-to-digital converter (ADC) driver, a stable reference buffer, a high resolution, 18-bit, 15 MSPS successive approximation register (SAR) ADC, and the critical passive components necessary for optimum performance. A full description of this product is available in the ADAQ23878 data sheet, which must be consulted when using the EVAL-ADAQ23878FMCZ.
The EVAL-ADAQ23878FMCZ interfaces with high speed system demonstration platform (SDP), SDP-H1 (EVAL-SDP-CH1Z), via a 160-pin connector, as shown in Figure 2 in the user guide.
For full details on the ADAQ23878, see the ADAQ23878 data sheet, which must be consulted in conjunction with the user guide when using the EVAL-ADAQ23878FMCZ.
Documentation & Resources
Tools & Simulations
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
To launch ready-to-run LTspice demonstration circuits for this part:
Step 1: Download and install LTspice on your computer.
Step 2: Click on the link in the section below to download a demonstration circuit.
Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.
Models for the following parts are available in LTspice:
Reference Designs (1)
CN0560High Precision, Wide Bandwidth Current Measurement Signal Chain
CN0560High Precision, Wide Bandwidth Current Measurement Signal Chain
Features & Benefits
- Selectable Current Input Range with Protection
- 10 A, 10mA, 10uA Measurement Range
- Oversampling Enables up to 111 dB of Dynamic Range
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.