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Precision Medium Bandwidth
From the smallest perturbation of the electrical grid, to the loudest roar of a jet engine, we are providing the most accurate insights into the dynamics of complex systems, where signals from multiple sources at once must be analyzed with precision in time, frequency, and amplitude, creating real-time information that gives a deeper understanding of the current and future behavior of high value equipment and infrastructure, both physical and electrical.
This Platform Offers …
- Trade-offs that place AC precision as the highest priority
- Measurement and drive/control options that provide best-in-class accuracy, stability, and resolution
- Metrology-grade solutions for dynamic signals up to 500 kHz
- Highest accuracy and stability for signals up to 500 kHz
- At least 16-bit measurement resolution, and better than 90 dB THD
Signal Chain Options To Suit Different Application Priorities
- Options for trading off accuracy/bandwidth/stability for power consumption, density, and cost
Precision Medium Bandwidth Signal Chains
Vibration and Sound
This section includes vibration and sound signal chains for use cases with low noise and wide bandwidth, such as edge node sensing and high performance vibration and sound data acquisition channels. Some of the signal chains include devices with integrated digital filters to simplify analog filter design, reduce interface speed, and reduce power consumption in the digital host. Includes high performance DAQ signal chains with wide bandwidth and low noise.
- Enhanced Digital Functions
- Wide Bandwidth Compact Solution
- 3-Axis Sensing
- IEPE Unipolar Input
- IEPE Bipolar Input
Edge Node Vibration Sensing
Key Value Propositions
- Integrated digital filter simplifies analog filter design, reduces interface speed, and reduces power consumption in digital host
- Register programmable digital filter profile to suit different analysis needs; for example, frequency domain harmonic analysis and time domain shock pulse method
- Strong aliased rejection, protection from external interferences
Edge Node Vibration Sensing
Key Value Propositions
- Simple, highly compact solution with low component count
- Easy to use with AFE and LDO integration
- Low power consumption
Edge Node Vibration Sensing
Key Value Propositions
- Simultaneous sampling of 3-axis vibration
- Integrated digital filter simplifies analog filter design, reduces interface speed, and reduces power consumption in digital host
- Strong aliased rejection, protection from external interferences.
Vibration Sensing Data Acquisition Module
Key Value Propositions
- High performance DAQ signal chain with wide bandwidth, low noise
- Excellent AC and DC performance
- Direct interface with IEPE sensors of no case isolation
- Support very low frequency sensing
- Alias free with full-scale out of band signal
Input Protection Switch
ADG5421F ±60 V fault protection and detection, 11 Ω RON, dual SPST switch
Constant Current Source
LT3092 200 mA 2-terminal programmable current source
Offset Adjustment DAC
LTC2606 16-Bit rail-to-rail DACs with I2C interface
Gain
AD8605 Precision, low noise, CMOS, RRIO op amp (single)
ADC Driver
ADA4945-1 High speed, ±0.1 µV/˚C offset drift, fully differential ADC driver
ADC
AD7768-1 DC to 204 kHz, dynamic signal analysis, precision 24-bit ADC with power scaling
Ref Buffer
ADA4807 1 Zero-drift, single-supply, rail-to-rail input/output operational/amplifier
Reference
ADR4540 Ultra-low noise, high-accuracy 4.096 V voltage reference
Isolation
N/A
Vibration Sensing Data Acquisition Module
Key Value Propositions
- Bipolar signal input with wide common mode range
- Suitable for long cable connection with sensor
- Suitable for channel isolated systems
- High performance DAQ signal chain with wide bandwidth, low noise
- Alias free with full scale out of band signal
- Direct interface with IEPE sensors
- Can be repurposed for general-purpose DAQ instrument
Input Protection Switch
ADG5421F ±60 V fault protection and detection, 11 Ω RON, dual SPST switch
Constant Current Source
LT3092 200 mA 2-terminal programmable current source
Offset Adjustment DAC
N/A
Gain
ADA4610-1 Precision, low noise JFET op amp
ADC Driver
ADA4945-1 High speed, ±0.1 µV/˚C offset drift, fully differential ADC driver
ADC
AD7768-1 DC to 204 kHz, dynamic signal analysis, precision 24-bit ADC with power scaling
Ref Buffer
ADA4807 1 Zero-drift, single-supply, rail-to-rail input/output operational/amplifier
Reference
ADR4540 Ultra-low noise, high-accuracy 4.096 V voltage reference
Isolation
ADuM141D 150 Msps 3/3.75 kV rms isolation
Resources
Technical Articles
Reference Design
Data Acquisition
Single-Channel High Precision
In this section, find signal chain options that provide highly scalable solutions for data acquisition, with trade-offs between power, bandwidth, and noise. These chains are typified by simplified analog front-end design with antialiasing protection. Single-channel signal chains can be utilized in multichannel systems where channel-to-channel isolation is required.
Multichannel High Precision
The following signal chains provide highly scalable solutions for multichannel use cases with trade-offs between power, bandwidth, and noise. These chains are typified by simplified analog front-end design and precision converters with multiple analog-to-digital conversion input channels per device.
- Scalable Performance
- High Density
- Low Latency
- Alias Free Simultaneous Sampling
- Scalable Simultaneous Sampling
- Low Latency Simultaneous Sampling
Single Channel
Key Value Propositions
- Up to 1 MSPS single, flexible DAQ platform that can be used across a wide range of AC and DC applications
- Fully programmable digital filters with adjustable bandwidth and data rate
- Wide input voltage range, high input impedance, and high input common-mode
Input Protection Switch
ADG5421F ±60 V fault protection and detection, 11 Ω RON, dual SPST switch
Gain
LTC6373 36 V fully-differential programmable-gain instrumentation amplifier with 25 pA input bias current
ADC Driver
ADA4945-1 Ultra-low distortion 1 nV/√Hz amp
ADC
AD7768-1 DC to 204 kHz, dynamic signal analysis, precision 24-bit ADC with power scaling
Ref Buffer
AD8628 Zero-drift, single-supply, rail-to-rail input/output operational amplifier
Ref
ADR444 Ultra-low noise, high-accuracy 4.096 V voltage reference
Isolation
ADuM141E 150 Msps 3/3.75 kV rms isolator
Single Channel
Key Value Propositions
- Up to 1 MSPS highly integrated data acquisition solution
- Dev-to-dev phase matching at 20 kHz is ±0.2°
Input Protection Switch
ADG5421F ±60 V fault protection and detection, 11 Ω RON, dual SPST switch
Gain | ADC Driver | ADC
ADAQ7768-1 24-Bit, 1 Msps data acquisition solution µModule
Ref Buffer
AD8628 Zero-drift, single-supply, rail-to-rail input/output operational amplifier
Ref
ADR444 Ultra-low noise, high-accuracy 4.096 V voltage reference
Isolation
ADuM141E 150 Msps 3/3.75 kV rms isolator
Single Channel
Key Value Propositions
- Up to 2 MSPS single, flexible DAQ platform that can be used across a wide range of AC and DC applications
- Wide input voltage range, high input impedance, and high input common-mode
Input Protection Switch
ADG5421F ±60 V fault protection and detection, 11 Ω RON, dual SPST switch
Gain
LTC6373 36 V fully-differential programmable-gain instrumentation amplifier with 25 pA input bias current
ADC Driver
ADA4945-1 Ultra-low distortion 1 nV/√Hz amp
ADC
AD4003 18-Bit, 2 MSPS, differential SAR ADC
Ref Buffer
ADA4807 3.1 nV/√Hz, 1 mA, 180 MHz, rail-to-rail input/output amplifier
Ref
ADR4550 Ultra-low noise, high-accuracy 5.0 V voltage reference
Isolation
ADuM141E 150 Msps 3/3.75 kV rms isolator
Multichannel Channel
Key Value Propositions
- Up to 1496 kSPS with inherent anti-alias protection
- High channel density, compact 4-channel DAQ
- 3.3 ns group delay channel matching (ADC only)
Multichannel Channel
Key Value Propositions
- Scalable power vs. bandwidth and SNR vs. data rate
- High density 8-channel compact DAQ
- Flexible channel configuration for multiple sensor input types
Input Protection Switch
ADG5421F ±60 V fault protection and detection, 11 Ω RON, dual SPST switch
Gain
LTC6373 36 V fully-differential programmable-gain instrumentation amplifier with 25 pA input bias current
ADC Driver
ADA4945-1 Ultra-low distortion 1 nV/√Hz amp
ADC
AD7768 24-Bit, 4-channel 1.5 Msps precision alias free ADC
Ref Buffer
ADA4841-1 2.1 nV/√Hz, 1.1 mA, 80 MHz low noise and distortion, rail-to-rail output amplifier
Ref
ADR444 Ultra-low noise, high-accuracy 4.096 V voltage reference
Multichannel Channel
Key Value Propositions
- Low latency at 16-bit resolution with sampling rates up to 4 MSPS
- Compact 4-channel or 2-channel solution with integrated reference and buffer
Input Protection Switch
ADG5421F ±60 V fault protection and detection, 11 Ω RON, dual SPST switch
Gain
LTC6373 36 V fully-differential programmable-gain instrumentation amplifier with 25 pA input bias current
ADC Driver
ADA4945-1 Ultra-low distortion 1 nV/√Hz amp
ADC
AD7380 24-Bit, 4-channel 1.5 Msps precision alias free ADC
Ref Buffer
ADA4807-1 2.1 nV/√Hz, 1.1 mA, 80 MHz low noise and distortion, rail-to-rail output amplifier
Ref
ADR4533 Ultra-low noise, high-accuracy 3.3 V voltage reference
Resources
Technical Articles
Videos
Reference Design
- Bank Isolated, 2-Channel, 16-Bit, 500 kSPS, Simultaneous Sampling Signal Chain Featuring μModule Data Acquisition System
- Isolated, Multichannel Data Acquisition System with PGIA for Single-Ended and Differential Industrial Level Signals
- High Performance, Alias Free Measurement Platform for Flexible Data Acquisition System
Position-Rotation
Encoder-Based Rotation Sensing
The following signal chains deliver high precision rotation measurement capability, with options to include simultaneous sampling signal chains for phase accuracy, low latency for precision control loops, and lower resolution options for cost-sensitive applications.
AMR-Based Rotation Sensing
In this section we describe a signal chain that delivers the highest level of performance for rotation sensing and feedback applications.
- Noise Optimized
- Density Optimized
- Cost Optimized
- AMR (Anisotropic Magnetoresistive)
Encoder-Based Rotation Sensing
Key Value Propositions
- 16-bit performance for high precision rotation measurement
- Simultaneous sampling signal chain for angle accuracy (sin/cos phase match)
- Lowest latency signal chain for precision control loops
TIA
AD8656 Low noise, precision CMOS dual amplifier
ADC Driver
ADA4945-1 High speed, ±0.1 µV/˚C offset drift, fully differential ADC driver
ADC
AD7380 4 MSPS dual simultaneous sampling, 16-bit SAR ADC, differential input
Ref Buffer
ADA4807-1 3.1 nV/√Hz, 1 mA, 180 MHz, rail-to-rail input/output amplifier
Ref
ADR4533 Ultra-low noise, high-accuracy 3.3 V voltage reference
Comparator
LTC6702 Tiny micropower, low voltage dual comparators
Encoder-Based Rotation Sensing
Key Value Propositions
- Integrated LDO, reference, and reference buffer for smallest solution size
- Simultaneous sampling signal chain for angle accuracy (sin/cos phase match)
- Lowest latency signal chain for precision control loops
TIA
AD8656 Low noise, precision CMOS dual amplifier
ADC Driver
ADA4945-1 High speed, ±0.1 µV/˚C offset drift, fully differential ADC driver
ADC | Ref Buffer | Ref
AD7380 4 MSPS dual simultaneous sampling, 16-bit SAR ADC, differential input
Comparator
LTC6702 Tiny micropower, low voltage dual comparators
Encoder-Based Rotation Sensing
Key Value Propositions
- 14-bit Performance for cost sensitive applications
- Use integrated functions for reduced board space and component cost
- Reduced data rate for lower cost signal chain
TIA
AD8656 Low noise, precision CMOS dual amplifier
ADC Driver
ADA4945-1 High speed, ±0.1 µV/˚C offset drift, fully differential ADC driver
ADC | Ref Buffer | Ref
AD4681 4 MSPS dual simultaneous sampling, 14-bit SAR ADC, differential input
Comparator
LTC6702 Tiny micropower, low voltage dual comparators
AMR-Based Rotation Sensing
Key Value Propositions
- High Angular Accuracy (0.1°)
- Low latency signal chain for high dynamic applications
- Reduced torque ripple, and noise, vibration, and harshness (NVH)
- For lowest latency choose AD4680
- For lower cost choose AD4681
Resources
Sonar
Find signal chain options that provide highly scalable solutions for passive sonar array applications. Solutions here focus on simplified analog front-end design with inherent antialiasing and easy-to-drive data converter inputs.
- Scalable Performance
- High Dynamic Range
- Sensor Distributed
Key Value Propositions
- 8-channels in one DAQ unit
- Highly scalable solution with software configurable trade off between power, bandwidth and noise
- Integrated brick wall digital filter ideal for frequency analysis
Preamp
ADA4625-2 36 V, 18 MHz, low noise, fast settling single supply, RRO, JFET op amp
Precision Filter
ADA4841-2 Low power, low noise and distortion, rail-to-rail output amplifier
ADC Driver
ADA4940-2 Ultralow power, low distortion ADC driver
ADC
AD7768 8-Channel, 24-bit, simultaneous sampling adc, power scaling, 110.8 kHz BW
Ref Buffer
ADA4807-1 3.1 nV/√Hz, 1 mA, 180 MHz, rail-to-rail input/output amplifier
Ref
LTC6655 0.25 ppm noise, low drift precision reference
Key Value Propositions
- High dynamic range removes the need of PGA
- Simplified analog frontend design with inherent antialiasing and easy to drive input
- Integrated brick wall digital filter ideal for frequency analysis
Preamp
ADA4625-2 36 V, 18 MHz, low noise, fast settling single supply, RRO, JFET op amp
Precision Filter
ADA4841-2 Low power, low noise and distortion, rail-to-rail output amplifier
ADC Driver
LTC6363 Precision, low power, low noise, wide BW fully differential amplifier/ADC driver
ADC
AD4134 24-Bit, 4-channel, 1.5 Msps alias-free simultaneous sampling ADC
Ref Buffer
N/A
Ref
LTC6655 0.25 ppm noise, low drift precision reference
Key Value Propositions
- ADC close to the sensor, reduce cabling cost
- Highly scalable solution with software configurable trade-off between power, bandwidth and noise
- Integrated brick wall digital filter ideal for frequency analysis
Preamp
ADA4625-2 36 V, 18 MHz, low noise, fast settling single supply, RRO, JFET op amp
Precision Filter
ADA4841-2 Low power, low noise and distortion, rail-to-rail output amplifier
ADC Driver
ADA4945-1 High speed, ±0.1 µV/˚C offset drift, fully differential ADC driver
ADC
AD7768-1 DC to 204 kHz, dynamic signal analysis, precision 24-bit ADC with power scaling
Ref Buffer
N/A
Ref
LTC6655 0.25 ppm noise, low drift precision reference
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