Compact Low Power Precision Solutions
Analog Devices’ compact low power precision signal chains are designed and optimized for battery-powered, power-sensitive, or small footprint applications. Precision amplifiers, voltage references, analog-to-digital converters (ADCs), isolation, and microcontroller (MCU) components are combined for complete sensor-to-system solutions. These signal chains span key vectors including sensor type, sample rate, single-ended or differential sensor signals, and single-channel or multichannel systems. 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
Compact low power precision 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.
Offers highest resolution
Highest temperature stability
Lowest noise
Compact Low-Power Precision Signal Chains
| 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 |
|||
| 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
|
Instrumentation Amplifier |
Operational Amplifier |
ADC |
Voltage Reference |
Isolation |
MCU |
| MAX41400 Low-Power, Precision Instrumentation Amplifier with Programmable Gain |
MAX40024 Low-Noise, Low-Power, Low-Bias-Current Amplifiers |
AD4698 16-Bit, 8-Channel, 1 MSPS, Easy Drive Multiplexed SAR ADC |
ADR3625 Precision, Micropower, High Current Output Voltage Reference |
MAX22664 Reinforced, Fast, Low-Power, Six-Channel Digital Isolators |
MAX32655 Low-Power, Arm Cortex-M4 Processor with FPU-Based Microcontroller and Bluetooth 5.2 |
LTspice Signal Chain Simulations
Power Solutions
Multichannel, Single-Ended Input, 16 Bits, above 2.4 kSPS
Sensors Supported: Strain Gage Quarter Bridge, Potentiometer Transducer, Voltage
|
Operational Amplifier |
ADC |
Voltage Reference |
Isolation |
MCU |
| MAX40024 Low-Noise, Low-Power, Low-Bias-Current Amplifiers |
AD4698 16-Bit, 8-Channel, 1 MSPS, Easy Drive Multiplexed SAR ADC |
ADR3625 Precision, Micropower, High Current Output Voltage Reference |
MAX22664 Reinforced, Fast, Low-Power, Six-Channel Digital Isolators |
MAX32655 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
|
Operational Amplifier |
ADC |
Voltage Reference |
Isolation |
MCU |
| ADA4097-2 50 V, 130 kHz, 32.5 μA per Channel, Robust, Over-The-Top, Precision Op Amp |
AD4130-8 32 μA, Ultra Low Power, 24-Bit Sigma-Delta ADC with Integrated PGA and FIFO |
ADR3625 Precision, Micropower, High Current Output Voltage Reference |
MAX22664 Reinforced, Fast, Low-Power, Six-Channel Digital Isolators |
MAX32655 Low-Power, Arm Cortex-M4 Processor with FPU-Based Microcontroller and Bluetooth 5.2 |
Power Solutions
Multichannel, Differential Input, 16 Bits
Biopotential or Biosignal Sensors Supported
|
Instrumentation Amplifier |
ADC |
Voltage Reference |
Isolation |
MCU |
| AD8233 50 μA, 2 mm × 1.7 mm WLCSP, Low Noise, Heart Rate Monitor for Wearable Products |
AD4698 316-Bit, 8-Channel, 1 MSPS, Easy Drive Multiplexed SAR ADC |
ADR3625 Precision, Micropower, High Current Output Voltage Reference |
MAX22664 Reinforced, Fast, Low-Power, Six-Channel Digital Isolators |
MAX32655 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
|
Instrumentation Amplifier |
ADC |
Voltage Reference |
Isolation |
MCU |
| AD8233 50 μA, 2 mm × 1.7 mm WLCSP, Low Noise, Heart Rate Monitor for Wearable Products |
AD4008 16-Bit, 2 MSPS/1 MSPS/500 kSPS, Precision, Pseudo Differential, SAR ADCs |
ADR3625 Precision, Micropower, High Current Output Voltage Reference |
MAX22664 Reinforced, Fast, Low-Power, Six-Channel Digital Isolators |
MAX32655 Low-Power, Arm Cortex-M4 Processor with FPU-Based Microcontroller and Bluetooth 5.2 |
Power Solutions
Single-Channel, 16-Bits, above 2.4 kSPS, Differential Input, Size Optimized
Sensors Supported: Strain Gage Full Bridge, Thermometer, PT100, PT1000, Ohmic Resistor
|
Instrumentation Amplifier |
Operational Amplifier |
ADC |
Voltage Reference |
Isolation |
MCU |
| MAX41400 Low-Power, Precision Instrumentation Amplifier with Programmable Gain |
MAX40023 Low-Noise, Low-Power, Low-Bias-Current Amplifiers |
AD4008 16-Bit, 2 MSPS/1 MSPS/500 kSPS, Precision, Pseudo Differential, SAR ADCs |
ADR3625 Precision, Micropower, High Current Output Voltage Reference |
MAX22664 Reinforced, Fast, Low-Power, Six-Channel Digital Isolators |
MAX32655 Low-Power, Arm Cortex-M4 Processor with FPU-Based Microcontroller and Bluetooth 5.2 |
LTspice Signal Chain Simulations
Single-Channel, 16 Bits, above 2.4 kSPS, Differential Input, Noise Optimized
Sensors Supported: Strain Gage Half Bridge, Potentiometer Transducer
|
Instrumentation Amplifier |
ADC |
Voltage Reference |
Isolation |
MCU |
| AD8235 40 μA Micropower Instrumentation Amplifier in WLCSP Package |
AD4058 Compact, Low Power, 16-Bit, 2 MSPS/500 kSPS Easy Drive SAR ADC |
ADR3625 Precision, Micropower, High Current Output Voltage Reference |
MAX22664 Reinforced, Fast, Low-Power, Six-Channel Digital Isolators |
MAX32655 Low-Power, Arm Cortex-M4 Processor with FPU-Based Microcontroller and Bluetooth 5.2 |
LTspice Signal Chain Simulations
Single-Channel, 16 Bits, above 2.4 kSPS, Single-Ended Input
Sensors Supported: Strain Gage Quarter Bridge, Voltage
|
Operational Amplifier |
ADC |
Voltage Reference |
Isolation |
MCU |
| MAX40023 Low-Noise, Low-Power, Low-Bias-Current Amplifiers |
AD4058 Compact, Low Power, 16-Bit, 2 MSPS/500 kSPS Easy Drive SAR ADC |
ADR3625 Precision, Micropower, High Current Output Voltage Reference |
MAX22664 Reinforced, Fast, Low-Power, Six-Channel Digital Isolators |
MAX32655 Low-Power, Arm Cortex-M4 Processor with FPU-Based Microcontroller and Bluetooth 5.2 |
Power Solutions
Developer Tools and Resources
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Simulation Models
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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