My Inquiry
My Account
Texas Instruments INA213CIDCKT
- Part No.:
- INA213CIDCKT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
INA213CIDCKT.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,085
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
INA213CIDCKT from Texas Instruments is a voltage-output, zero-drift current-shunt monitor optimized for bidirectional high- or low-side sensing in power management systems. It features 50 V/V fixed gain, ±100 µV maximum input offset voltage (RTI), 80 kHz bandwidth, –0.1 V to 26 V common-mode input range, and operates from 2.7 V to 26 V supply with ≤100 µA quiescent current. It enables precise 10-mV full-scale shunt measurements in battery chargers and telecom power rails.
For engineers reviewing the INA213CIDCKT datasheet, INA213CIDCKT pinout, INA213CIDCKT application, or INA213CIDCKT equivalent, this page delivers verified technical context, package-specific pin functions, real-world use-value per application, and two validated alternative parts - all grounded in TI's SBOS437K specification sheet and official orderable data.
Technical Context
The INA213CIDCKT implements a zero-drift chopper-stabilized amplifier architecture to achieve <0.5 µV/°C offset drift and 10 ppm/°C gain drift over –40°C to +125°C. Its differential input stage supports bidirectional current sensing with 100 dB minimum CMRR at DC and maintains accuracy across a 26-V common-mode range independent of supply voltage.
It uses internal matched thin-film resistors (RINT = 20 kΩ) for 50 V/V gain, enabling stable operation with minimal external components. The SC70-6 package supports compact layout while maintaining thermal resistance of 227.3°C/W (Junction-to-Ambient), suitable for space-constrained power monitoring nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Fixed Gain | 50 V/V - sets output scaling for 20-mV shunt drop → 1-V output; enables direct ADC interfacing without external amplification |
| Input Offset Voltage (max) | ±100 µV RTI - supports accurate 10-mV full-scale shunt sensing with <1% error at low currents |
| Common-Mode Range | –0.1 V to 26 V - allows high-side sensing on 24-V industrial rails or low-side sensing near ground, independent of 2.7–26 V supply |
| Bandwidth | 80 kHz - captures fast load transients in battery charging and DC-DC converter feedback loops |
| Quiescent Current | 100 µA max - enables always-on current monitoring in energy-sensitive portable and IoT devices |
| Operating Temperature | –40°C to +125°C - qualified for automotive under-hood and industrial power module environments |
| Gain Error (Version C) | ±0.5% max over temperature - ensures consistent calibration across thermal cycling without software compensation |
Pinout & Package
The INA213CIDCKT is packaged in a 6-pin SC70 (DCK) package measuring 2.00 mm × 1.25 mm, with exposed pad omitted - suitable for reflow assembly and moderate-power dissipation (θJA = 227.3°C/W).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Analog power supply | Accepts 2.7–26 V; powers internal amplifier and reference buffer; requires 0.01–0.1 µF bypass capacitor close to pin |
| GND | Analog ground reference | Return path for supply and signal; must be connected to low-impedance system ground plane to minimize noise coupling |
| IN+ | Non-inverting input | Connects to supply-side of shunt resistor; high-impedance node (28 µA max bias current); routing must minimize trace inductance |
| IN− | Inverting input | Connects to load-side of shunt resistor; matched to IN+ for CMRR; same layout sensitivity as IN+ |
| REF | Reference voltage input | Sets output common-mode level (0 V to V+); unbuffered - requires low-impedance source or op-amp buffer if derived from divider |
| OUT | Voltage output | Single-ended analog output (50 × VSENSE + VREF); drives ≥10 kΩ loads; swing limited to (V+) – 0.2 V and GND + 0.05 V |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Enables stable 10-mV full-scale shunt sensing with <0.5 µV/°C offset drift - eliminates need for periodic null calibration in field-deployed equipment |
| Bidirectional current sensing | Supports both charge and discharge monitoring in battery management via polarity-sensitive output relative to REF |
| High CMRR (100 dB min) | Maintains accuracy despite noisy 24-V bus transients - critical for telecom rectifier modules sharing ground with digital control logic |
| SC70-6 footprint | Reduces PCB area by >50% vs SOIC-8 alternatives while retaining thermal performance for ≤100 mW dissipation |
| Version C grade | Guarantees ±0.5% gain error over temperature - simplifies production test limits and reduces BOM variants in high-volume power supplies |
Applications
| Server PSU Monitoring | USB-C PD Charger |
|---|---|
Use Scenario: Real-time current measurement on 12-V intermediate bus in 1U server power supply units. IC Role / Device Role / Timing Role: High-side current-shunt monitor feeding ADC in digital power controller; provides feedback for phase shedding and OCP. Use Value: 80 kHz bandwidth captures multi-phase ripple; ±0.5% gain error ensures consistent current reporting across –40°C to +125°C ambient - reducing firmware compensation overhead. |
Use Scenario: Bidirectional current sensing on USB-C power delivery input rail (5–20 V) during sink/source mode transitions. IC Role / Device Role / Timing Role: Low-quiescent-current shunt amplifier interfaced to microcontroller ADC; detects insertion/removal and negotiates PDOs. Use Value: 100 µA IQ enables always-on monitoring without violating USB-C standby power budgets; 50 V/V gain scales 20-mV shunt drop to 1-V full-scale ADC input. |
| Industrial Motor Drive | 4G/5G Base Station PSU |
Use Scenario: Low-side current sensing on IGBT gate driver power rail in servo drive inverters. IC Role / Device Role / Timing Role: Fault-detection monitor feeding safety logic; triggers shutdown on overcurrent within 12.5 µs (1/80 kHz). Use Value: –0.1 V to 26 V common-mode range accommodates negative transient undershoot during switching; SC70 package fits tight gate-driver PCB layouts. |
Use Scenario: High-side monitoring of +48 V telecom rectifier output feeding distributed baseband units. IC Role / Device Role / Timing Role: Precision current sensor in hot-swap controller loop; reports load current to PMBus host for thermal derating. Use Value: 26 V common-mode rating covers rectifier overshoot; ±100 µV offset ensures <1% error at 1-A load with 10-mΩ shunt - improving efficiency reporting accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA213AIDCKT | Same SC70-6 package and 50 V/V gain, but Version A grade: ±1% gain error (vs. ±0.5% for INA213CIDCKT) and –0.3 V to 26 V common-mode range | Acceptable for cost-sensitive consumer power adapters where ±1% gain tolerance is sufficient and negative common-mode excursions may occur | Select INA213AIDCKT only if gain error budget allows ±1% and system common-mode never exceeds –0.1 V; otherwise INA213CIDCKT ensures tighter spec compliance. |
| INA214CIDCKT | Same Version C grade and SC70-6 package, but 100 V/V gain; identical offset (±60 µV), bandwidth (30 kHz), and supply range | Better suited for 5-mV shunt drops or higher-resolution measurements; trades bandwidth for gain - not drop-in compatible due to different transfer function | Choose INA214CIDCKT when shunt voltage must be halved (e.g., 5-mV full-scale) and 30 kHz bandwidth suffices; avoid if 80 kHz transient response is required. |
Compared with INA213AIDCKT and INA214CIDCKT, the INA213CIDCKT uniquely balances 80 kHz bandwidth, ±0.5% gain accuracy, and 50 V/V scaling - making it optimal for high-dynamic-range, thermally demanding power monitoring where both speed and precision are non-negotiable.
Availability
INA213CIDCKT is available at Aetrix Electronics and suitable for server power supplies, USB-C PD chargers, industrial motor drives, and 4G/5G base station power systems requiring stable component supply, long-term lifecycle support, and guaranteed Version C grade performance.
Supply support for INA213CIDCKT 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 product line was designed specifically for high-accuracy, wide common-mode current sensing in power conversion, battery management, and telecom infrastructure - emphasizing zero-drift stability, SC70 scalability, and robust ESD performance (±3500 V HBM).
FAQ
What is the maximum common-mode voltage supported by the INA213CIDCKT?
The INA213CIDCKT 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 allows reliable high-side sensing on 24-V industrial buses and low-side sensing near ground, independent of its 2.7–26 V supply voltage. The –0.1 V lower limit means it cannot tolerate significant negative transients below ground without external clamping.
Does the INA213CIDCKT require an external reference voltage?
No - the INA213CIDCKT does not require an external reference voltage to operate, but the REF pin must be actively driven to a defined DC level (0 V to V+) to set the output common-mode voltage. Leaving REF floating causes undefined output behavior. For ratiometric measurements, connecting REF to mid-supply (e.g., V+/2) is typical; for ground-referenced outputs, tie REF to GND.
Can the INA213CIDCKT measure bidirectional current?
Yes - the INA213CIDCKT supports true bidirectional current sensing. When the shunt voltage polarity reverses (IN+ < IN−), the output voltage drops below the REF voltage by an amount proportional to the reverse current. With REF biased at mid-supply (e.g., 2.5 V), output swings symmetrically around that point - enabling detection of charge/discharge direction in battery applications.
What is the purpose of the 20-kΩ internal resistor network in the INA213CIDCKT?
The 20-kΩ internal resistor network (R3/R4) defines the 50 V/V fixed gain of the INA213CIDCKT and establishes its input impedance characteristics. It enables precise gain matching and contributes to the device's 100 dB CMRR. External series resistance at IN+/IN− must stay ≤10 Ω to avoid introducing measurable gain error - as quantified in TI's Equation 1 for RINT = 20 kΩ.
Is the INA213CIDCKT pin-compatible with other INA21x variants in SC70-6?
Yes - all INA21x devices in the DCK (SC70-6) package share identical pinout and footprint, including INA210, INA211, INA212, INA213, INA214, and INA215. However, gain, bandwidth, offset, and gain error grade differ per variant; swapping requires verifying signal chain compatibility (e.g., 80 kHz BW of INA213CIDCKT vs. 4 kHz of INA212).
INA213CIDCKT 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:
- 80 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 28 µA
- Voltage - Input Offset:
- 5 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
INA213CIDCKT FAQ
1.How can I place an order for INA213CIDCKT through Aetrix?
Please submit a Request for Quotation (RFQ) for INA213CIDCKT 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 INA213CIDCKT reliable?
The price and inventory of INA213CIDCKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA213CIDCKT is usually 5 days.
3.What payment methods are accepted for INA213CIDCKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA213CIDCKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA213CIDCKT?
INA213CIDCKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA213CIDCKT 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 INA213CIDCKT?
For technical support, including INA213CIDCKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA213CIDCKT requirements.
6.How does Aetrix verify that INA213CIDCKT is sourced from the original manufacturer or authorized distributors?
All INA213CIDCKT 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 INA213CIDCKT meets industry standards.
7.What is the process for return or replacement of INA213CIDCKT?
All INA213CIDCKT units undergo pre-shipment inspection (PSI). If there is an issue with INA213CIDCKT, 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 INA213CIDCKT part is unused and in its original packaging.
Return procedure for INA213CIDCKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
INA213CIDCKT Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
