1.8 to 5.5V, high-precision current sense amplifier in wcsp
Product details
Parameters
Package | Pins | Size
Features
- CHIP-SCALE PACKAGE
- COMMON-MODE RANGE: +1.8V to +5.5V
- OFFSET VOLTAGE: ±30µV
- GAIN ERROR: ±0.2% MAX
- CHOICE OF GAINS:
- INA216A1: 25V/V
- INA216A2: 50V/V
- INA216A3: 100V/V
- INA216A4: 200V/V
- QUIESCENT CURRENT: 13µA
- BUFFERED VOLTAGE OUTPUT: No Additional Op Amp Needed
Description
The INA216 is a high-side voltage output current shunt monitor that can sense drops across shunts at common-mode voltages from +1.8V to +5.5V. Four fixed gains are available: 25V/V, 50V/V, 100V/V, and 200V/V. The low offset of the Zerø-Drift architecture enables current sensing with maximum drops across the shunt as low as 10mV full-scale, or with wide dynamic ranges of over 1000:1.
These devices operate from a single +1.8V to +5.5V power supply, drawing a maximum of 25µA of supply current. The INA216 series are specified over the temperature range of –40°C to +125°C, and offered in a chip-scale package.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | Small Size, Low-Power, Unidirectional CURRENT SHUNT MONITOR datasheet (Rev. C) | Nov. 04, 2011 |
Technical articles | How current-sense amplifiers monitor satellite health | Feb. 08, 2021 | |
Technical articles | Why current and magnetic sensing matters for wireless earbud design | Nov. 10, 2019 | |
Technical articles | A key to accurate system thermal management: monitoring both current flow and temperature | Oct. 04, 2018 | |
Selection guide | Current Sense Amplifiers (Rev. D) | Apr. 04, 2018 | |
Technical articles | System trade-offs for high- and low-side current measurements | Jun. 01, 2017 | |
User guide | INA216EVM User Guide | Aug. 26, 2011 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The INA216EVM is intended to provide basic functional evaluation of this device family. The fixture layout is not intended to be a model for the target circuit, nor is it laid out for electromagnetic compatibility (EMC) testing. The INA216EVM allows the user to install a shunt resistor, and then (...)
Features
- Easy handling of the tiny WCSP-4 package
- Easy access to all device pins
- Space for optional input filtering capacitors and resistors as well as a prototype area for additional user defined circuitry
- Space for shunt resistors of various footprints
- Evaluation of all gain options through provided device (...)
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Reference designs
Additionally, an external protection circuit is implemented to provide surge and fast-transient protection and demonstrate the different immunity levels to (...)
Design files
-
download TIDA-00302 BOM.pdf (52KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
DSBGA (YFF) | 4 | View options |
UQFN (RSW) | 10 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
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