Precision Low Power Solutions
Analog Devices’ precision low-power signal chains are designed and optimized for battery-powered, power-sensitive, or small footprint applications. We combine precision amplifiers, voltage references, analog-to-digital converters (ADCs), isolation, and microcontroller (MCU) components for complete sensor-to-system solutions. Our signal chains span across key vectors including sensor type, sample rate, single-ended or differential sensor input signals, and single-channel or multichannel capability. Applications include portable vital signs monitoring (VSM), wireless environmental monitoring (temperature, CO2 gas, CO gas, pH), condition-based monitoring (CbM), and industrial uses like intelligent flow meters and vibration sensing, including sensor biasing.
Value and Benefits
Precision low-power signal chains enable richer insights into our environment, the performance of distributed systems, and better understanding of human health by offering solutions that can be easily integrated and deployed into a variety of situations. These signal chains offer compact solutions with small footprints and battery-powered capability.
Optimize precision at micropower
Enable high channel density, small footprint
Utilize single/multichannel sensor-to-bits solutions
Precision Low Power Signal Chains
| Precison Low Power Signal Chain Options |
Multichannel, Differential Input, 16 Bits, Above 2.4ksps |
Multichannel, Single-Ended Input, 16 Bits, Above 2.4ksps |
Multichannel, Differential Input, 24 Bits, Below 2.4ksps |
Multichannel, Differential Input, 16 Bits |
Single Channel, Differential Input, 16 Bits |
Single Channel, 16 Bits, Above 2.4ksps |
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| Differential Input Size Optimized |
Differential Input Noise Optimized |
Single-Ended Input | |||||||
| Sensor Type | Bio-Signal, Biopotential | • | • | ||||||
| Strain Gage Full Bridge | • | • | • | ||||||
| Strain Gage Half Bridge | • | • | • | ||||||
| Strain Gage Quarter Bridge | • | • | • | ||||||
| Potentiometer Transducer | • | • | • | • | |||||
| Voltage | • | • | • | • | |||||
| Thermocouple | • | ||||||||
| Thermometer, PT100, PT1000 | • | • | • | ||||||
| Ohmic Resistor | • | • | • | ||||||
Multichannel, Differential Input, 16 Bits, above 2.4 kSPS
Sensors Supported: Strain Gage Full Bridge, Strain Gage Half Bridge, Potentiometer Transducer, Voltage, Thermometer, PT100, PT1000, Ohmic Resistor
Amplifier
Low-Power, Precision Instrumentation Amplifier with Programmable Gain
Amplifier
Low-Noise, Low-Power, Low-Bias-Current Amplifiers
ADC
16-Bit, 8-Channel, 1 MSPS, Easy Drive Multiplexed SAR ADC
Reference
Precision, Micropower, High Current Output Voltage Reference
Isolation
Micropower Quad-Channel Digital Isolator, Default High (3/1 Channel Directionality)
MCU
Low-Power, Arm Cortex-M4 Processor with FPU-Based Microcontroller and Bluetooth 5.2
Adjust the parameters below to achieve the desired complete signal chain SNR (Signal to Noise Ratio).
No image available. 
Power Solutions
LTspice Simulations
Multichannel, Single-Ended Input, 16 Bits, above 2.4 kSPS
Sensors Supported: Strain Gage Quarter Bridge, Potentiometer Transducer, Voltage
Amplifier
Low-Noise, Low-Power, Low-Bias-Current Amplifiers
ADC
16-Bit, 8-Channel, 1 MSPS, Easy Drive Multiplexed SAR ADC
Reference
Precision, Micropower, High Current Output Voltage Reference
Isolation
Micropower Quad-Channel Digital Isolator, Default High (3/1 Channel Directionality)
MCU
Low-Power, Arm Cortex-M4 Processor with FPU-Based Microcontroller and Bluetooth 5.2
Power Solutions
Multichannel, Differential Input, 24 Bits, below 2.4 kSPS
Sensors Supported: Strain Gage Full Bridge, Strain Gage Half Bridge, Strain Gage Quarter Bridge, Potentiometer Transducer, Voltage, Thermocouple, Thermometer, PT100, PT1000, Ohmic Resistor
Amplifier
50 V, 130 kHz, 32.5 μA per Channel, Robust, Over-The-Top, Precision Op Amp
ADC
32 μA, Ultra Low Power, 24-Bit Sigma-Delta ADC with Integrated PGA and FIFO
Reference
Precision, Micropower, High Current Output Voltage Reference
Isolation
Micropower Quad-Channel Digital Isolator, Default High (3/1 Channel Directionality)
MCU
Low-Power, Arm Cortex-M4 Processor with FPU-Based Microcontroller and Bluetooth 5.2
Adjust the parameters below to achieve the desired complete signal chain SNR (Signal to Noise Ratio).
No image available. 
Power Solutions
Multichannel, Differential Input, 16 Bits
Biopotential or Biosignal Sensors Supported
Amplifier
50 μA, 2 mm × 1.7 mm WLCSP, Low Noise, Heart Rate Monitor for Wearable Products
ADC
16-Bit, 8-Channel, 1 MSPS, Easy Drive Multiplexed SAR ADC
Reference
Precision, Micropower, High Current Output Voltage Reference
Isolation
Micropower Quad-Channel Digital Isolator, Default High (3/1 Channel Directionality)
MCU
Low-Power, Arm Cortex-M4 Processor with FPU-Based Microcontroller and Bluetooth 5.2
Power Solutions
Single-Channel, Differential Input, 16 Bits
Biopotential or Bio-signal Sensors Supported
Amplifier
50 μA, 2 mm × 1.7 mm WLCSP, Low Noise, Heart Rate Monitor for Wearable Products
ADC
16-Bit, 2 MSPS/1 MSPS/500 kSPS, Precision, Pseudo Differential, SAR ADCs
Reference
Precision, Micropower, High Current Output Voltage Reference
Isolation
Micropower Quad-Channel Digital Isolator, Default High (3/1 Channel Directionality)
MCU
Low-Power, Arm Cortex-M4 Processor with FPU-Based Microcontroller and Bluetooth 5.2
Power Solutions
LTspice Simulations
Single-Channel, 16-Bits, above 2.4 kSPS, Differential Input, Size Optimized
Sensors Supported: Strain Gage Full Bridge, Thermometer, PT100, PT1000, Ohmic Resistor
Amplifier
Low-Power, Precision Instrumentation Amplifier with Programmable Gain
Amplifier
Low-Noise, Low-Power, Low-Bias-Current Amplifiers
ADC
16-Bit, 2 MSPS/1 MSPS/500 kSPS, Precision, Pseudo Differential, SAR ADCs
Reference
Precision, Micropower, High Current Output Voltage Reference
Isolation
Micropower Quad-Channel Digital Isolator, Default High (3/1 Channel Directionality)
MCU
Low-Power, Arm Cortex-M4 Processor with FPU-Based Microcontroller and Bluetooth 5.2
Single-Channel, 16 Bits, above 2.4 kSPS, Differential Input, Noise Optimized
Sensors Supported: Strain Gage Half Bridge, Potentiometer Transducer
Amplifier
40 μA Micropower Instrumentation Amplifier in WLCSP Package
ADC
16-Bit, 2 MSPS/1 MSPS/500 kSPS, Precision, Pseudo Differential, SAR ADCs
Reference
Precision, Micropower, High Current Output Voltage Reference
Isolation
Micropower Quad-Channel Digital Isolator, Default High (3/1 Channel Directionality)
MCU
Low-Power, Arm Cortex-M4 Processor with FPU-Based Microcontroller and Bluetooth 5.2
Single-Channel, 16 Bits, above 2.4 kSPS, Single-Ended Input
Sensors Supported: Strain Gage Quarter Bridge, Voltage
Amplifier
Low-Noise, Low-Power, Low-Bias-Current Amplifiers
ADC
16-Bit, 2 MSPS/1 MSPS/500 kSPS, Precision, Pseudo Differential, SAR ADCs
Reference
Precision, Micropower, High Current Output Voltage Reference
Isolation
Micropower Quad-Channel Digital Isolator, Default High (3/1 Channel Directionality)
MCU
Low-Power, Arm Cortex-M4 Processor with FPU-Based Microcontroller and Bluetooth 5.2
Power Solutions
LTspice Simulations
Training and Support
Trainings and Tutorials
Video
Jan 29, 2019
09:05Driving SAR ADCs Part 7: Distortion caused by large Rfilt
Video
Jan 17, 2019
07:45Driving SAR ADCs Part 3: Designing the RC Filter
Video
Jan 17, 2019
08:39Driving SAR ADCs Part 4: Simulating Analog Input Model in LTspice
Video
Jan 17, 2019
06:10Driving SAR ADCs Part 1: Analog Input Model
Video
Jan 17, 2019
05:00Driving SAR ADCs Part 6: Driver Ringing and Instability
Video
Jan 17, 2019
04:57Driving SAR ADCs Part 2: Kickback Calculations
Video
Jan 17, 2019
09:13Driving SAR ADCs Part 5: Precision ADC Driver Tool
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