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Texas Instruments INA215BIDCKT
- Part No.:
- INA215BIDCKT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
INA215BIDCKT.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
INA215BIDCKT from Texas Instruments is a voltage-output, bidirectional current-shunt monitor with zero-drift architecture, designed for high-accuracy low- or high-side current sensing in power rails up to 26 V. It features a fixed gain of 75 V/V, ±60 µV maximum input offset voltage (RTI), 0.5 µV/°C max offset drift, 40 kHz bandwidth, and operates from 2.7 V to 26 V supply with ≤100 µA quiescent current - enabling 10-mV full-scale shunt measurements in battery chargers and telecom power management.
For engineers reviewing the INA215BIDCKT datasheet, INA215BIDCKT pinout, INA215BIDCKT application, or INA215BIDCKT 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 for design flexibility and supply continuity.
Technical Context
The INA215BIDCKT implements a precision zero-drift chopper-stabilized amplifier topology that maintains ±60 µV RTI offset and 0.5 µV/°C drift over –40°C to +125°C, supporting accurate low-voltage shunt sensing down to 10 mV full-scale. Its differential input stage accepts common-mode voltages from –0.1 V to 26 V independent of supply, enabling direct measurement on high-side 12-V or 24-V rails while powered from a 3.3-V or 5-V domain.
With 75 V/V fixed gain, 105 dB min CMRR, and 40 kHz small-signal bandwidth, the device delivers stable output swing within 50 mV of rails (at 10 kΩ load) and supports fast transient response for overcurrent protection. Input bias current remains below 35 µA, and internal 13.3 kΩ input resistors define gain-setting accuracy per TI's published RINT table.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 75 V/V - sets output = 75 × (VIN+ − VIN−) + VREF; enables 13.3 mV shunt drop for 1-V output at full scale |
| Input Offset Voltage (RTI) | ±60 µV max - ensures ≤0.08% error at 75-mV shunt drop; supports 10-mV full-scale designs without calibration |
| Offset Drift | ≤0.5 µV/°C - contributes <0.042 mV error over –40°C to +125°C; critical for uncalibrated industrial temperature operation |
| Common-Mode Range | –0.1 V to 26 V - allows direct high-side sensing on 24-V telecom supplies while powered from 3.3-V logic rail |
| Supply Voltage Range | 2.7 V to 26 V - permits single-supply operation across battery, adapter, and bus-powered systems without LDO |
| Quiescent Current | ≤100 µA - enables always-on current monitoring in energy-sensitive portable and IoT applications |
| Bandwidth | 40 kHz - supports detection of fast load transients and switching ripple in DC-DC converters and USB-C PD controllers |
Pinout & Package
INA215BIDCKT is packaged in a 6-pin SC70 (DCK) package 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; sets output common-mode level; must be buffered if driven by high-impedance divider |
| 2 (IN−) | Differential input (inverting) | Connects to load side of shunt resistor; forms differential pair with IN+; matched input impedance minimizes CMRR degradation |
| 3 (V+) | Positive power supply | 2.7 V to 26 V analog supply; requires 0.1 µF bypass capacitor close to pin for stability and noise rejection |
| 4 (IN+) | Differential input (non-inverting) | Connects to supply side of shunt resistor; common-mode voltage range extends beyond V+ (up to 26 V) |
| 5 (GND) | Analog ground | Reference return for internal circuitry; must tie to system analog ground plane with low-inductance path |
| 6 (OUT) | Voltage output | Single-ended output referenced to GND or REF; drives 10 kΩ loads with ≤50 mV headroom to V+ and ≤50 mV to GND |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Eliminates 1/f noise and thermal drift; enables stable 10-mV full-scale shunt sensing without periodic recalibration |
| Bidirectional current sensing | Supports both sourcing and sinking current measurement via polarity of VIN+ − VIN− relative to VREF |
| High common-mode rejection | 105 dB min CMRR ensures immunity to rail noise - critical when monitoring noisy 12-V or 24-V power buses |
| Low quiescent power | 100 µA max IQ allows continuous monitoring in battery-backed systems with >1-year runtime impact |
| SC70-6 footprint | 2.00 mm × 1.25 mm body enables placement adjacent to shunt resistors in compact USB-C PD modules and SSD power stages |
Applications
| Power Supply Monitoring | USB-C Power Delivery |
|---|---|
|
Use Scenario: Real-time current tracking in 12-V/48-V intermediate bus converters for server PSUs. IC Role / Device Role / Timing Role: High-side current-shunt monitor feeding ADC input of PMBus controller for dynamic load-line adjustment. Use Value: ±60 µV offset enables sub-1% error at 50-mA shunt current with 10-mΩ resistor; reduces thermal derating vs. 100-mV alternatives. |
Use Scenario: Bidirectional current measurement in USB-C port controllers for source/sink mode detection and safety cutoff. IC Role / Device Role / Timing Role: Voltage-output current sense amplifier interfacing directly to microcontroller ADC with VREF tied to internal 1.2-V reference. Use Value: 40 kHz bandwidth captures CC line fault transients; 75 V/V gain matches 10-mΩ shunt to 0–3.3 V ADC range without external scaling. |
| Notebook Battery Management | Telecom Line Card Protection |
|
Use Scenario: Low-side battery discharge/charge current monitoring in ultrabook battery fuel gauges. IC Role / Device Role / Timing Role: Precision current-sense amplifier with REF grounded, providing rail-to-rail compatible output for 16-bit SAR ADC sampling. Use Value: 0.5 µV/°C drift limits temperature-induced error to <0.1% over operating range - eliminates need for software compensation tables. |
Use Scenario: Overcurrent detection on 48-V PoE++ PSE power sourcing equipment line cards. IC Role / Device Role / Timing Role: High-common-mode current monitor placed between MOSFET switch and Ethernet transformer, referenced to isolated 3.3-V domain. Use Value: –0.1 V to 26 V common-mode range accommodates negative transients during hot-swap; 100 µA IQ avoids loading auxiliary bias rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA214BIDCKT | 100 V/V gain, ±100 µV max offset, same SC70-6 package and 40 kHz BW | Better suited for 5-mV shunt drops; higher gain increases sensitivity but reduces dynamic range vs. INA215BIDCKT | Select when full-scale shunt voltage is ≤7.5 mV and higher output signal-to-noise ratio is required. |
| MAX40056ASA+T | 75 V/V gain, ±50 µV offset, 200 kHz BW, 1.8–5.5 V supply only, 8-pin SOIC | Higher bandwidth and lower offset, but limited to ≤5.5 V supply and larger footprint; no 26-V common-mode support | Choose for high-speed motor control feedback where supply is 3.3 V and board area is not constrained. |
Compared with INA214BIDCKT and MAX40056ASA+T, INA215BIDCKT uniquely balances 26-V common-mode tolerance, ultra-low drift, and SC70 size - making it optimal for space-limited, wide-input-voltage applications like telecom DC/DC modules and USB-C PD sink controllers where supply independence and thermal stability are critical.
Availability
INA215BIDCKT is available at Aetrix Electronics and suitable for notebook power management, USB-C PD implementations, and telecom line card protection requiring stable component supply across extended temperature and voltage ranges.
Supply support for INA215BIDCKT 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 delivering analog and embedded processing solutions, with deep expertise in precision signal chain and power management ICs.
The INA21x product line was engineered specifically for high-accuracy, low-power current sensing in space-constrained, wide common-mode applications - including battery-powered devices, telecom infrastructure, and industrial power supplies.
FAQ
What is the maximum common-mode voltage supported by the INA215BIDCKT?
The INA215BIDCKT supports a common-mode input voltage range of –0.1 V to 26 V across its IN+ and IN– pins, independent of the supply voltage. This allows direct high-side sensing on 24-V rails while operating from a 3.3-V supply. The specification applies to Versions B and C; INA215BIDCKT is a Version B device per TI's ordering nomenclature and datasheet revision history.
Does the INA215BIDCKT require an external reference voltage?
No - the INA215BIDCKT does not require an external reference. Its REF pin can be tied to GND for unipolar output (0 V to VOUT), to V+/2 for bipolar output centered at mid-supply, or to an external precision reference. When left floating, the output defaults to VREF = 0 V, yielding a 0–VOUT range proportional to sensed current direction and magnitude.
What is the typical output voltage swing for the INA215BIDCKT at 5 V supply?
At V+ = 5 V and RL = 10 kΩ to GND, the INA215BIDCKT delivers an output swing of (V+) – 0.2 V minimum to GND + 0.05 V minimum - i.e., 4.8 V down to 0.05 V. This rail-to-rail capability ensures full utilization of a 5-V ADC input range when REF is grounded or set to 0 V, minimizing quantization loss in digitized current data.
Can the INA215BIDCKT measure bidirectional current, and how is direction determined?
Yes - the INA215BIDCKT supports bidirectional current sensing. Direction is determined by the polarity of the differential input voltage (VIN+ − VIN−) relative to the REF pin voltage. When VIN+ > VIN−, output rises above VREF; when VIN+ < VIN−, output falls below VREF. For example, with REF = 2.5 V and 5-V supply, output spans ~0.05 V to ~4.8 V, straddling 2.5 V to indicate flow direction.
What package options are available for the INA215BIDCKT, and is there a UQFN variant?
The INA215BIDCKT is specified only in the 6-pin SC70 (DCK) package per TI's official orderable addendum and device marking. While the broader INA21x family includes UQFN (RSW) variants for other part numbers (e.g., INA215AIRSAT), the 'BIDCKT' suffix explicitly denotes the SC70-6 package. No UQFN version of INA215BIDCKT exists - alternate part numbers must be used for thin UQFN footprints.
INA215BIDCKT 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
INA215BIDCKT FAQ
1.How can I place an order for INA215BIDCKT through Aetrix?
Please submit a Request for Quotation (RFQ) for INA215BIDCKT 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 INA215BIDCKT reliable?
The price and inventory of INA215BIDCKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA215BIDCKT is usually 5 days.
3.What payment methods are accepted for INA215BIDCKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA215BIDCKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA215BIDCKT?
INA215BIDCKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA215BIDCKT 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 INA215BIDCKT?
For technical support, including INA215BIDCKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA215BIDCKT requirements.
6.How does Aetrix verify that INA215BIDCKT is sourced from the original manufacturer or authorized distributors?
All INA215BIDCKT 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 INA215BIDCKT meets industry standards.
7.What is the process for return or replacement of INA215BIDCKT?
All INA215BIDCKT units undergo pre-shipment inspection (PSI). If there is an issue with INA215BIDCKT, 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 INA215BIDCKT part is unused and in its original packaging.
Return procedure for INA215BIDCKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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