Catalog
18-Bit, 15 MSPS, μModule Data Acquisition Solution
Key Features
• Integrated fully differential ADC driver with signal scalingWide input common-mode voltage rangeHigh common-mode rejection
• Wide input common-mode voltage range
• High common-mode rejection
• Single-ended to differential conversion
• Pin selectable input range with overrangeInput ranges with 4.096 V REFBUF: ±10 V, ±5 V, ±4.096 V, ±2.5 V, and ±1.5 V
• 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 2.25Critical passive components0.005% precision matched resistor array for FDA
• Critical passive components
• 0.005% precision matched resistor array for FDA
• 9 mm × 9 mm, 0.8 mm pitch, 100-ball CSP_BGA package2.5× footprint reduction vs. discrete solution
• 2.5× footprint reduction vs. discrete solution
• Low power, dynamic power scaling, power-down mode143 mW typical at 15 MSPS
• 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)
• (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
Description
AI
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.APPLICATIONSAutomatic test equipmentData acquisitionHardware in the Loop (HiL)Power analyzersNon-destructive test (acoustic emissions)Mass spectrometryTravelling wave fault locationMedical imaging and instruments
