INA223AIDSKR - 26V Zero-Drift Current Sense Amplifier | TI
MPN: INA223AIDSKR β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.66 | $1.66 |
| 10 | $1.49 | $14.90 |
| 100 | $1.28 | $128.00 |
| 500 | $1.08 | $540.00 |
| 1,000 | $0.94 | $940.00 |
Drop-in alternatives for INA223AIDSKR β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
INA223AIDGSR
β Drop-Inπ Reference alternative (not in catalog)
INA223AIDSKR Maximum Ratings & Electrical Characteristics
| Product Type | Current Shunt and Voltage Monitor with Analog Output |
| Common-Mode Voltage Range | 0 V to 26 V |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Sensing Configuration | High-Side / Low-Side, Bi-Directional |
| Output Type | Analog (voltage output) |
| Architecture | Zero-Drift Series |
| Measured Parameters | Current, Bus Voltage, Instantaneous Power |
| Operating Temperature Range | -40C to +105C |
| Package | 10-WSON / 10-SON (2.5 mm x 2.5 mm) with Exposed Pad (DSK) |
| Mounting Type | Surface Mount |
| Number of Pins | 10 |
INA223AIDSKR 10-wson / 10-son (2.5 mm x 2.5 mm) with exposed pad (dsk) Pin Configuration Guide
Complete pinout information for INA223AIDSKR (10-wson / 10-son (2.5 mm x 2.5 mm) with exposed pad (dsk) package) with 10 pins. This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for INA223AIDSKR.
Refer to the datasheet for full pin configuration.
Estimated pin count: 10 pins (analog package)
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
INA223AIDSKR is suitable for 6 applications: Battery Charge/Discharge Monitoring, Server and Telecom Power Rail Supervision, Industrial Automation Power Telemetry, Portable and Wearable Device Power Budgeting, Solar and Renewable Energy Monitoring, Test and Measurement Instrumentation.
Battery Charge/Discharge Monitoring
The INA223AIDSKR fits battery monitoring because it is bi-directional: one shunt in the battery pack lead captures both charging and discharging current, with the device resolving polarity on its analog outputs. Its 0 V to 26 V common-mode range covers single-cell Li-ion up to multi-cell and 12 V/24 V battery buses, while the 2.7 V to 5.5 V supply lets it run directly from a 3.3 V system rail. The zero-drift architecture keeps offset low across -40C to +105C, so coulomb-counting and overcurrent thresholds remain accurate as the pack heats and cools. Connect the current and bus-voltage outputs to the system microcontroller ADC or to comparators for autonomous overcurrent protection, avoiding any serial-bus dependency in the power path.
Recommended
Server and Telecom Power Rail Supervision
Data-center and telecom boards densely pack 12 V and intermediate-bus rails, and the INA223AIDSKR supervises them at common-mode voltages up to 26 V while powered from a local 3.3 V or 5 V supply. The simultaneous current, bus voltage, and instantaneous power outputs allow baseboard controllers to log real power draw per rail with one shunt and three ADC channels. The 10-SON 2.5 mm x 2.5 mm footprint with exposed pad fits tight board real estate near hot-swap connectors and power stages. Because the outputs are analog, hot-swap comparators can react to overcurrent within microseconds without waiting for an I2C poll, improving fault containment. The industrial -40C to +105C rating tolerates elevated inlet-air temperatures in modern rack enclosures.
Recommended
Industrial Automation Power Telemetry
Factory controllers and IO modules increasingly report per-load power budgets, and the INA223AIDSKR provides the measurement front end: current, bus voltage, and instantaneous power on analog outputs that feed a PLCs ADC or an isolated measurement channel. Its 26 V common-mode ceiling covers standard 24 V industrial buses with margin, and high-side placement keeps the ground path intact for downstream sensors. The zero-drift front end preserves measurement accuracy in electrically noisy cabinets where offset drift would otherwise corrupt low-current readings over the -40C to +105C ambient span. Gain programmability lets one shunt value serve both light idle-current logging and peak-load capture, simplifying BOM standardization across a product family.
Recommended
Portable and Wearable Device Power Budgeting
In smartphones, tablets, and wearables, the INA223AIDSKR measures current into SoC and RF power amplifiers so firmware can build accurate power-consumption profiles. The 2.5 mm x 2.5 mm WSON-10 package with exposed pad minimizes board area and provides a low-inductance shunt connection, while the analog outputs tie directly into a host PMIC ADC with no bus transactions or standby configuration overhead. The devices low operating supply range (2.7 V to 5.5 V) and bi-directional sensing support both battery discharge and charge-current profiling with a single shunt. Zero-drift accuracy ensures microamp-scale sleep currents remain resolvable, which is essential for extending battery-life estimates that consumers see on screen.
Recommended
Solar and Renewable Energy Monitoring
Solar charge controllers and micro-inverter auxiliary rails need continuous string or battery current visibility, and the INA223AIDSKR delivers it with a 26 V common-mode range that accommodates 12 V and 24 V PV battery buses. The bi-directional analog outputs distinguish charge current flowing into the battery from discharge current into the load, enabling a single-shunt topology that reduces shunt cost and measurement error stacking. Its zero-drift architecture maintains accuracy through wide diurnal temperature swings from -40C to +105C, and the analog power output can feed a simple scaling network to the systems telemetry ADC. Designers should shield the IN+/IN- Kelvin traces from switching nodes of the DC-DC converter stage.
Recommended
Test and Measurement Instrumentation
Bench supplies, load meters, and automated test equipment benefit from the INA223AIDSKRs analog current, voltage, and power outputs, which can be digitized by the instruments precision ADC or routed to hardware comparators for fast trip response. The programmable gain allows one instrument front end to span multiple current decades by switching shunt-to-gain configuration without changing the shunt resistor, preserving burden-voltage characteristics across ranges. The zero-drift input stage provides the DC precision expected in instrumentation, with minimal offset drift across the -40C to +105C specified range. The 26 V common-mode rating allows direct placement on output rails up to 24 V, and the small WSON-10 footprint suits probe-head and channel-card geometries.
Recommended
Recommended Products Summary
Engineering reference data for INA223AIDSKR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | INA223AIDGSR | INA226AIDGSR | INA219AIDCNR |
|---|---|---|---|---|
| Package | 10-WSON (DSK) 2.5x2.5, exposed pad | 10-WSON (DSK) 2.5x2.5 - same | VSSOP-10 - different (not drop-in) | SOT-23-8 - different (not drop-in) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Output Interface | Analog (voltage outputs) | Analog - same | Digital I2C/SMBus, 16-bit | Digital I2C |
| Common-Mode Voltage | 0 V to 26 V | 0 V to 26 V | 0 V to 36 V | 0 V to 26 V |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 3 V to 5.5 V |
| Sensing Direction | Bi-directional, high/low-side | Bi-directional, high/low-side | Bi-directional, high/low-side | Bi-directional, high/low-side |
| Resolution / Gain | Programmable analog gain | Programmable analog gain - same | 16-bit digital | 12-bit digital, lower precision |
| Operating Temperature | -40C to +105C | -40C to +105C | [DATA_NEEDED] | [DATA_NEEDED] |
| Unit Price (qty 1, as of 2026-09-02) | $1.66 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Analog output with zero firmware overhead (vs INA226AIDGSR)
- Integrated instantaneous power output (vs INA219AIDCNR)
- Zero-drift architecture over industrial temperature range (vs INA223AIDGSR)
Design Notes
Use Kelvin (4-wire) connections at the shunt resistor: route the IN+ and IN- traces directly from the shunt pads, not from shared current-carrying copper. Even a few milliohms of trace resistance introduces gain error proportional to load current. Keep the IN+/IN- pair as a tightly coupled differential pair, and place the INA223AIDSKR within a few millimeters of the shunt. The exposed pad under the WSON-10 should be tied to GND for thermal and grounding performance.
Decouple the VS pin with a 0.1 uF ceramic capacitor placed within 2 mm of the pin, plus a bulk 1 uF if the supply rail is long. The device can be powered from a 3.3 V or 5 V rail independent of the monitored bus (up to 26 V common-mode), which allows monitoring a 12 V or 24 V bus from a logic supply. Verify the shunt power dissipation: at 100 mV full-scale and 10 A, the shunt dissipates 1 W - size the resistor accordingly.
Route the analog output traces away from switching-node and gate-drive nets; if the outputs must cross a noisy region, add an RC filter (for example 100 ohm / 10 nF) close to the receiving ADC input. Estimated: a 100 ohm / 10 nF filter sets a pole at roughly 160 kHz, well above the monitor signal bandwidth for DC-current telemetry while rejecting switching-frequency ripple. Maintain a solid ground plane beneath the analog outputs to minimize loop area.
Do not exceed the 26 V common-mode rating on IN+/IN- even transiently without verifying system-level surge protection; bus transients from inductive loads can exceed the rating during hot-plug events. Also confirm the ordering suffix: INA223AIDSKR and INA223AIDGSR are the same die with different reel quantities, but INA226/INA219 devices are digital and not pin-compatible - do not substitute them onto an INA223 footprint.
Compliance Information
Compliance status not stated in the retrieved web data; verify on the TI product page quality section before production release.
