Precision Logger - 10 Channels High Resolution Data Logger
Precision Logger - 10 Channels High Resolution Data Logger
Anabit's Precision Logger is an ultra-high resolution, open-source ADC solution built for developers, experimenters, and makers who demand precision without complexity.
Whether you're logging sensor data, working on a predictive maintenance application, or performing scientific measurements, the Precision Logger can deliver microvolt-level insight with analog flexibility.
The Precision Logger's 32 bit ADC combined with its outstanding accuracy specifications allows you to achieve measurements of nearly 8 digits of usable precision. This makes the Precision Logger ideal for applications where small voltage changes matter. The Precision Logger delivers multiple channels that can be configured as 5 differential or 10 single-ended inputs using the integrated analog multiplexer.
Tailored for DC and low-frequency AC applications, the Precision Logger can support a wide range of sensors and signal types, examples include:
- Thermocouples (with cold junction compensation)
- RTDs and thermistors
- Strain gauges and load cells
- Seismometers / geophones
- Photodiodes (low light)
- Electrochemical and biosensors
Check out the Product Features or Specifications below as well as or detailed tutorial for more information.
Product features
Product features
The Precision Logger is Packed with Advanced Features:
Built-in low-drift 2.5V reference, with option to add a 2.048V ultra-low drift reference (±0.04%)
Built-in multiplexer that automates routing the ADC to any 10 single ended or 5 differential channels
Programmable gain amplifier (PGA) with gain settings up to 32×
Two precision current sources for performing accurate resistance measurements
Optional secondary 24-bit ADC — ideal for cable resistance compensation for sensors such as RTD
Digital filters to attenuate input noise and 50Hz/60Hz power line ripple
Integrated temperature sensor for cold-junction or ambient compensation
SPI Interface + Flexible Low Noise Power
The board communicates via SPI and operates from a single 3.3V to 5V supply. It supports both single-ended and bipolar differential voltage measurements (-2.5V to +2.5V), with biasing support for unipolar input ranges from 0.1V to 4.9V. The Precision Logger employs two levels of power supply noise filtering ensuring it does not makes it way to your sensitive analog signals.
Specifications
Specifications
Resolution: 32-bit ΔΣ ADC with up to 26.9 ENOB
Maximum Sample Rate: 38.4 kSPS with a maximum bandwidth of 7.74 kHz
Programmable Gain Amplifier (PGA): Gain settings of 1, 2, 4, 8, 16, 32. PGA can also be bypassed.
Main ADC high-accuracy architecture:
– Offset drift: 1 nV/°C
– Gain drift: 0.5 ppm/°C
– Noise: 7 nVRMS (2.5 SPS, gain = 32)
– Linearity: 3 ppm
Input analog pins can be configured as up to 8 general-purpose digital inputs/outputs
Digital Filter Options: Sinc1, Sinc2, Sinc3, Sinc4, Sinc5, and a finite impulse response (FIR) filter
Over voltage protection on input pins up to +/- 10V
SPI Interface: Supports clock speeds up to 10 MHz
Precision Current Sources (IDAC1 and IDAC2) with 10 selectable output ranges: 50 μA to 3 mA
Optional Second 24-bit ΔΣ ADC that
==> It can be routed to any input.
==> Max sample rate 800 SPS
==> built-in PGA with gains settings: 1, 2, 4 ,8, 16, 32, 64, and 128
Optional Voltage Reference: using ADR4520ARZ
==>Output Voltage: 2.048 V, Initial Accuracy: ±0.04%, ==>Temperature Coefficient: 2 ppm/°C (typical)
==>Output Drive Capability: Up to 10 mA
==>Includes four position DIP switch so user can select input pins it is routed to
==>Can be accessed externally to bias sensors or external amplifiers
Bulk Pricing and Discount Information
Bulk Pricing and Discount Information
5% discount for quantities of 10 or above, automatically applied at checkout. Contact Anabit for bulk pricing on quantities of 50 or more.
Resources
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Tutorials
Explore tutorials and getting started guides to get the most out of your product.
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Open-Source Downloads
Download open source hardware files, including PCB design files and schematic files
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Forum & Discussion
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