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Texas Instruments INA215CIDCKT
- Part No.:
- INA215CIDCKT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
INA215CIDCKT.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:433
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Product details
Overview
INA215CIDCKT 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 (TA = –40°C to +125°C), 0.5 µV/°C max offset drift, ±0.5% max gain error (Version C), and operates from 2.7 V to 26 V supply with only 100 µA quiescent current. It enables precise 10-mV full-scale shunt measurements in battery chargers and telecom power management systems.
For engineers reviewing the INA215CIDCKT datasheet, INA215CIDCKT pinout, INA215CIDCKT application, or INA215CIDCKT equivalent, this page delivers verified technical context, package-specific pin functions, real-world use cases, and validated alternative options - all grounded in TI's SBOS437K production data sheet and orderable device specifications.
Technical Context
The INA215CIDCKT implements a precision zero-drift chopper-stabilized amplifier topology optimized for differential voltage measurement across shunt resistors under wide common-mode conditions (–0.1 V to 26 V). Its internal matched resistor network (R3 = 13.3 kΩ, R4 = 1 MΩ) sets the 75 V/V gain and supports REF-biased output configuration.
It operates as a single-supply, rail-to-rail output current-sense amplifier with 40 kHz bandwidth (CLOAD = 10 pF), 105 dB min CMRR, and 25 nV/√Hz input-referred voltage noise. The SC70-6 package enables compact placement near shunts while maintaining thermal resistance of 227.3 °C/W (Junction-to-Ambient).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 75 V/V - fixed ratio converting shunt voltage to output; enables 10-mV full-scale sensing with <1% error at 125°C. |
| Input Offset Voltage | ±60 µV max (–40°C to +125°C) - ensures ≤0.6% error at 10-mV shunt drop without calibration. |
| Offset Drift | 0.5 µV/°C max - limits temperature-induced error to <40 µV over full industrial range. |
| Common-Mode Range | –0.1 V to 26 V - supports high-side sensing on 24-V bus rails while powered from 3.3-V supply. |
| Supply Voltage | 2.7 V to 26 V - allows direct operation from Li-ion battery or intermediate rail without LDO. |
| Quiescent Current | 100 µA max - enables always-on monitoring in energy-sensitive portable systems. |
| Bandwidth | 40 kHz - sufficient for DC–10 kHz current transients in switching power supplies and battery protection. |
| CMRR | 105 dB min - rejects >99.999% of common-mode noise in noisy 12-V telecom backplanes. |
Pinout & Package
INA215CIDCKT is packaged in a 6-pin SC70 (DCK) with 2.00 mm × 1.25 mm body size and 0.65 mm pitch. Pin 1 is marked by a dot; pin numbering follows standard SC70 top-view orientation (counterclockwise from mark).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - REF | Analog input | Reference voltage node (0 V to V+); sets output common-mode level; must be buffered if driven via resistive divider. |
| 2 - IN− | Analog input | Connects to load side of shunt; forms differential pair with IN+; high-impedance input (28 µA max bias). |
| 3 - V+ | Analog power supply | Single supply input (2.7 V–26 V); requires 0.1 µF ceramic bypass capacitor placed within 2 mm. |
| 4 - IN+ | Analog input | Connects to supply side of shunt; senses current direction (bidirectional); matched to IN− for CMRR. |
| 5 - GND | Analog ground | Return path for supply and signal; must tie to system power ground near shunt to avoid ground loop errors. |
| 6 - OUT | Analog output | Voltage-output stage (rail-to-rail swing); drives 10-kΩ loads with ≤50 mV headroom to rails at 125°C. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Enables stable 10-mV full-scale shunt sensing with <0.6% total error over –40°C to +125°C without trimming. |
| Bidirectional current sensing | Output polarity reverses with current direction; supports charge/discharge monitoring in battery packs. |
| Wide common-mode range | –0.1 V to 26 V allows high-side placement on 24-V industrial buses while powered from 3.3-V microcontroller rail. |
| Low quiescent current | 100 µA max enables continuous current monitoring in always-on IoT nodes with multi-year battery life. |
| SC70-6 footprint | 2.00 mm × 1.25 mm package minimizes PCB area and parasitic inductance near high-current shunts. |
Applications
| Battery Charger Monitoring | Telecom Power Management |
|---|---|
|
Use Scenario: Real-time charging current and state-of-charge tracking in USB-C PD and multi-cell Li-ion chargers. IC Role / Device Role / Timing Role: Bidirectional current-shunt monitor measuring voltage drop across 5-mΩ shunt at 0–5 A, with REF tied to ADC reference. Use Value: ±60 µV offset enables ±0.12 A accuracy at 10-mV full-scale, reducing shunt power loss by 90% vs. 100-mV designs. |
Use Scenario: Input current supervision and fault detection in 48-V telecom rectifier modules and PoE injectors. IC Role / Device Role / Timing Role: High-side monitor on 48-V input rail (common-mode = 48 V), powered from isolated 5-V auxiliary supply. Use Value: 26-V common-mode rating permits direct connection to 48-V rail via external zener clamp per TI design guidelines. |
| Notebook System Power Rail | Industrial Motor Drive Protection |
|
Use Scenario: Per-rail current monitoring (CPU, GPU, memory) for dynamic power budgeting and thermal throttling. IC Role / Device Role / Timing Role: Low-side shunt monitor on 1.2-V/30-A CPU rail; OUT fed to 12-bit SAR ADC with 100-kSPS sampling. Use Value: 40 kHz bandwidth captures fast load transients; 25 nV/√Hz noise ensures <1 mA RMS resolution at 10-mV FS. |
Use Scenario: Phase current sensing in 24-V BLDC motor drives for overcurrent shutdown and field-oriented control. IC Role / Device Role / Timing Role: Bidirectional shunt amplifier on low-side leg; outputs conditioned signal to MCU PWM timer capture input. Use Value: ±0.5% gain error (Version C) guarantees consistent current feedback across temperature, improving torque linearity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA214AIDCKT | 100 V/V gain, ±100 µV max offset, same SC70-6 package and 2.7–26 V supply. | Better suited for lower shunt drops (e.g., 5-mV FS) but higher offset increases error at low currents. | Select when higher gain is needed and ±1% gain error (Version A) is acceptable for cost-sensitive designs. |
| MAX4005AUT+T | 75 V/V gain, ±100 µV offset, 2.7–5.5 V supply only, SOT23-6 package, 12-bit integrated ADC interface. | Limited to low-voltage systems; lacks 26-V common-mode capability; includes digital interface overhead. | Choose only for 3.3-V embedded systems requiring direct ADC coupling and where 24-V bus sensing is not required. |
Compared with INA215CIDCKT, INA214AIDCKT offers higher gain but looser offset specs, while MAX4005AUT+T trades common-mode range and supply flexibility for integrated digital interfacing - making INA215CIDCKT the optimal choice for wide-input, precision analog current monitoring in industrial and telecom power systems.
Availability
INA215CIDCKT is available at Aetrix Electronics and suitable for battery charger monitoring, telecom power management, notebook system power rail supervision, and industrial motor drive protection requiring stable component supply and long-term production continuity.
Supply support for INA215CIDCKT 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 engineered specifically for high-accuracy, low-power current sensing in space-constrained, thermally demanding applications such as portable computing, telecom infrastructure, and industrial power conversion.
FAQ
What is the maximum common-mode voltage supported by the INA215CIDCKT?
The INA215CIDCKT supports a common-mode input voltage range of –0.1 V to 26 V over its full operating temperature range (–40°C to +125°C). This specification applies to Version C devices and enables reliable high-side sensing on 24-V industrial buses. Exceeding 26 V requires external transient protection per TI's Section 6.4.4 guidance using zener clamps and series resistors.
Does the INA215CIDCKT support bidirectional current measurement?
Yes, the INA215CIDCKT supports true bidirectional current sensing. Its output voltage polarity reverses with current direction across the shunt resistor - positive current (IN+ to IN−) produces VOUT > VREF, while negative current yields VOUT < VREF. This behavior is inherent to its differential input architecture and is confirmed in the SBOS437K functional description and typical application schematics.
What is the gain error specification for the INA215CIDCKT over temperature?
The INA215CIDCKT (Version C) has a maximum gain error of ±0.5% over the full operating temperature range of –40°C to +125°C. Additionally, its gain drift is limited to 10 ppm/°C max, contributing less than ±0.12% error across the full range. These values are specified in Section 5.5 Electrical Characteristics of the TI SBOS437K datasheet.
Can the INA215CIDCKT operate from a 3.3-V supply while monitoring a 24-V rail?
Yes, the INA215CIDCKT can operate from a 3.3-V supply while accurately monitoring a 24-V rail. Its wide common-mode range (–0.1 V to 26 V) and independent supply voltage requirement allow high-side shunt placement on the 24-V rail, with V+ supplied separately from the 3.3-V system rail - a key capability confirmed in the device description and recommended operating conditions.
What package type and pin count does the INA215CIDCKT use?
The INA215CIDCKT uses the SC70-6 (DCK) package: a 6-pin, surface-mount, plastic package with 2.00 mm × 1.25 mm body size and 0.65 mm lead pitch. Pinout is standardized per Figure 4-1 in SBOS437K: Pin 1 = REF, Pin 2 = IN−, Pin 3 = V+, Pin 4 = IN+, Pin 5 = GND, Pin 6 = OUT.
INA215CIDCKT 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:
- Obsolete
- 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
INA215CIDCKT FAQ
1.How can I place an order for INA215CIDCKT through Aetrix?
Please submit a Request for Quotation (RFQ) for INA215CIDCKT 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 INA215CIDCKT reliable?
The price and inventory of INA215CIDCKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA215CIDCKT is usually 5 days.
3.What payment methods are accepted for INA215CIDCKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA215CIDCKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA215CIDCKT?
INA215CIDCKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA215CIDCKT 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 INA215CIDCKT?
For technical support, including INA215CIDCKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA215CIDCKT requirements.
6.How does Aetrix verify that INA215CIDCKT is sourced from the original manufacturer or authorized distributors?
All INA215CIDCKT 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 INA215CIDCKT meets industry standards.
7.What is the process for return or replacement of INA215CIDCKT?
All INA215CIDCKT units undergo pre-shipment inspection (PSI). If there is an issue with INA215CIDCKT, 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 INA215CIDCKT part is unused and in its original packaging.
Return procedure for INA215CIDCKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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