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Texas Instruments INA215CIDCKR
- Part No.:
- INA215CIDCKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
INA215CIDCKR.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:5,975
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Product details
Overview
INA215CIDCKR from Texas Instruments is a voltage-output, zero-drift current-shunt monitor optimized for bidirectional high- or low-side current sensing in power management systems. It features 75 V/V fixed gain, ±60 µV max input offset voltage (RTI), 0.5 µV/°C max offset drift, and operates from 2.7 V to 26 V supply across –40°C to +125°C - enabling precise 10-mV full-scale shunt measurements in battery chargers and telecom power rails.
For engineers reviewing the INA215CIDCKR datasheet, INA215CIDCKR pinout, INA215CIDCKR application, or INA215CIDCKR equivalent, this page delivers verified specifications, SC70-6 package layout, real-world use cases in notebook power monitoring and USB-C PD systems, and validated alternative options with documented functional trade-offs.
Technical Context
The INA215CIDCKR implements a zero-drift chopper-stabilized amplifier architecture to suppress input offset and drift, supporting accurate current measurement at ultra-low shunt voltages. Its differential input stage accepts common-mode voltages from –0.1 V to 26 V independent of supply, making it suitable for high-side sensing on 12-V or 24-V rails while powered from a 3.3-V or 5-V domain.
It integrates matched thin-film resistors for 75 V/V gain accuracy (±0.5% max over temperature), delivers 40 kHz bandwidth with 0.4 V/µs slew rate, and maintains CMRR ≥105 dB across temperature - critical for rejecting noise in switching power supplies and motor control feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Fixed Gain | 75 V/V - sets output scaling for direct interface to 12-bit ADCs with 10-mV shunt full-scale |
| Input Offset Voltage (max) | ±60 µV RTI - enables ≤10-mV full-scale shunt operation without calibration |
| Offset Drift (max) | 0.5 µV/°C - ensures <1 µV total drift over –40°C to +125°C, preserving accuracy in thermal cycling |
| Common-Mode Range | –0.1 V to 26 V - supports high-side sensing on 24-V industrial rails with 3.3-V logic supply |
| Supply Voltage Range | 2.7 V to 26 V - allows single-supply operation across battery, adapter, and bus-powered systems |
| Quiescent Current (max) | 100 µA - enables always-on current monitoring in energy-sensitive portable devices |
| Bandwidth | 40 kHz - captures fast load transients in DC-DC converter output monitoring |
Pinout & Package
INA215CIDCKR is packaged in a 6-pin SC70 (DCK) body measuring 2.00 mm × 1.25 mm, optimized for space-constrained PCB layouts in portable electronics and modular power supplies.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (REF) | Analog reference input | Accepts 0 V to V+ reference voltage; determines output common-mode level and enables ratiometric or offset-adjusted configurations |
| 2 (IN–) | Differential input (inverting) | Connected to load side of shunt; forms differential pair with IN+ for bidirectional current polarity detection |
| 3 (V+) | Power supply input | Supplies internal circuitry; bypass capacitor required between V+ and GND for stability |
| 4 (IN+) | Differential input (non-inverting) | Connected to supply side of shunt; common-mode voltage up to 26 V tolerated regardless of V+ |
| 5 (GND) | Analog ground reference | Return path for internal biasing and output stage; must be tied to system analog ground near shunt |
| 6 (OUT) | Voltage output | Single-ended output scaled by 75× (VIN+ − VIN–) + VREF; drives 10-kΩ loads with rail-to-rail swing |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Eliminates 1/f noise and thermal hysteresis, enabling stable µV-level offset performance over life and temperature |
| High CMRR (≥105 dB) | Rejects switching noise from adjacent power stages, ensuring clean current readouts in buck/boost converters |
| Wide common-mode range (–0.1 V to 26 V) | Permits direct high-side sensing on 24-V industrial buses without level-shifting or external amplifiers |
| Low quiescent current (100 µA max) | Supports continuous current monitoring in battery-backed systems with minimal runtime impact |
| SC70-6 footprint | Reduces board area vs SOIC-8 by >70%, easing integration into compact USB-C PD adapters and IoT edge nodes |
Applications
| Power Supply Monitoring | USB-C Power Delivery |
|---|---|
Use Scenario: Real-time output current tracking in 12-V/48-W DC-DC modules for server PMBus compliance. IC Role / Device Role / Timing Role: High-side current shunt monitor feeding analog input of microcontroller ADC. Use Value: Enables dynamic load balancing and overcurrent shutdown within 100 µs using 40-kHz bandwidth and 0.4-V/µs slew rate. |
Use Scenario: Bidirectional current measurement in USB-C PD sink port to enforce 3-A/5-A/10-A profile limits. IC Role / Device Role / Timing Role: Low-offset, bidirectional shunt amplifier interfacing to PD controller's analog monitoring inputs. Use Value: ±60-µV offset supports 10-mV shunt full-scale, achieving ±1% current accuracy across –40°C to +85°C ambient. |
| Notebook Battery Charging | Telecom Line Card Protection |
Use Scenario: Precision charge/discharge current sensing in lithium-polymer battery management for adaptive charging algorithms. IC Role / Device Role / Timing Role: Low-side current monitor with REF tied to ground, delivering ratiometric output to fuel-gauge IC. Use Value: 0.5-µV/°C drift ensures <1% error accumulation over full thermal range, improving SOC estimation fidelity. |
Use Scenario: Overcurrent detection on 48-V PoE++ line cards to trigger fault isolation before MOSFET failure. IC Role / Device Role / Timing Role: High-common-mode (up to 26 V) shunt monitor placed on primary-side return path. Use Value: –0.1-V to 26-V common-mode range accommodates negative transients and positive surges without clamping diodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA214AIDCKR | 100 V/V gain, ±100 µV max offset, same SC70-6 package and temp range | Better sensitivity for sub-10-mA sensing but reduced dynamic range vs INA215CIDCKR | Select when higher gain is needed for low-current precision; verify ADC input range compatibility |
| MAX40056AUT+T | 75 V/V gain, ±150 µV max offset, 1.8-V to 5.5-V supply, SOT23-6 package | Lower supply voltage support and smaller offset drift (0.1 µV/°C), but limited to 5.5-V common-mode | Prefer for 3.3-V-only systems with tight thermal budgets; not suitable for >5.5-V high-side sensing |
Compared with INA214AIDCKR and MAX40056AUT+T, the INA215CIDCKR offers superior common-mode range (–0.1 V to 26 V) and lower offset voltage than the MAX40056, making it optimal for universal-input power supplies and industrial 24-V monitoring where wide voltage tolerance is mandatory.
Availability
INA215CIDCKR is available at Aetrix Electronics and suitable for notebook power management, USB-C PD implementations, and telecom line card protection requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for INA215CIDCKR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision signal conditioning and power management ICs.
The INA21x series was designed specifically for high-accuracy, low-power current sensing in space- and energy-constrained applications - targeting battery-powered devices, server power supplies, and industrial automation systems.
FAQ
What is the maximum common-mode voltage supported by the INA215CIDCKR?
The INA215CIDCKR supports a common-mode input voltage range of –0.1 V to 26 V across its full operating temperature range (–40°C to +125°C). This specification applies to Version C devices, which INA215CIDCKR is confirmed to be per TI's SBOS437K datasheet. The device maintains specified accuracy and functionality within this range regardless of its 2.7-V to 26-V supply voltage, enabling robust high-side sensing on 24-V industrial rails.
Does the INA215CIDCKR require external gain-setting resistors?
No, the INA215CIDCKR does not require external gain-setting resistors. It features an internally trimmed fixed gain of 75 V/V, implemented using laser-trimmed thin-film resistors. This eliminates component count, layout sensitivity, and resistor matching errors - directly delivering a precision 75× amplified difference between IN+ and IN–, referenced to the REF pin voltage.
Can the INA215CIDCKR measure bidirectional current flow?
Yes, the INA215CIDCKR supports bidirectional current measurement. When the REF pin is set to mid-supply (e.g., V+/2), the output voltage centers at that reference. Current flowing in one direction produces an output above REF; reverse current pulls output below REF - enabling full-scale sensing in both directions using a single-ended ADC with sufficient range.
What is the typical quiescent current of the INA215CIDCKR at room temperature?
The typical quiescent current of the INA215CIDCKR at 25°C is 65 µA, with a guaranteed maximum of 100 µA over the full –40°C to +125°C temperature range. This ultra-low power consumption makes the INA215CIDCKR suitable for always-on current monitoring in battery-backed systems, such as smart battery gauges and portable medical devices.
Which package type is used for the INA215CIDCKR part number?
The INA215CIDCKR uses the SC70-6 (DCK) package: a 6-pin, surface-mount, plastic small-outline package with dimensions of 2.00 mm × 1.25 mm and 0.65-mm lead pitch. This compact footprint is explicitly designated in TI's orderable addendum and matches the pin configuration shown in Figure 4-1 of the SBOS437K datasheet.
INA215CIDCKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Zero-Drift
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- Single-Ended
- Slew Rate:
- 0.4V/µs
- Gain Bandwidth Product:
- 40 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 28 µA
- Voltage - Input Offset:
- 1 µV
- Current - Supply:
- 65µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 26 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-6
INA215CIDCKR FAQ
1.How can I place an order for INA215CIDCKR through Aetrix?
Please submit a Request for Quotation (RFQ) for INA215CIDCKR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for INA215CIDCKR reliable?
The price and inventory of INA215CIDCKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA215CIDCKR is usually 5 days.
3.What payment methods are accepted for INA215CIDCKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA215CIDCKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA215CIDCKR?
INA215CIDCKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA215CIDCKR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for INA215CIDCKR?
For technical support, including INA215CIDCKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA215CIDCKR requirements.
6.How does Aetrix verify that INA215CIDCKR is sourced from the original manufacturer or authorized distributors?
All INA215CIDCKR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that INA215CIDCKR meets industry standards.
7.What is the process for return or replacement of INA215CIDCKR?
All INA215CIDCKR units undergo pre-shipment inspection (PSI). If there is an issue with INA215CIDCKR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The INA215CIDCKR part is unused and in its original packaging.
Return procedure for INA215CIDCKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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