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Texas Instruments TSV912AIDGKR
- Part No.:
- TSV912AIDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSV912AIDGKR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,770
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Product details
Overview
TSV912AIDGKR from Texas Instruments is a dual-channel, rail-to-rail input/output operational amplifier optimized for low-power, precision signal conditioning in single-supply systems. It delivers 8 MHz gain bandwidth, 18 nV/√Hz input voltage noise at 1 kHz, 550 µA typical quiescent current per amplifier, and ±1 pA typical input bias current - enabling high-accuracy sensor interfacing and battery-powered motor control applications.
For engineers reviewing the TSV912AIDGKR datasheet, TSV912AIDGKR pinout, TSV912AIDGKR application, or TSV912AIDGKR equivalent, key selection criteria include its rail-to-rail operation across 2.5 V–5.5 V supplies, –40°C to 125°C extended temperature range, 1.5 mV maximum input offset voltage, and SOIC-8 package compatibility with space-constrained industrial and automotive modules.
Technical Context
The TSV912AIDGKR uses a complementary differential input stage (N- and P-channel pairs) to achieve rail-to-rail common-mode input range extending 100 mV beyond both supply rails across 2.5 V–5.5 V operation. Its unity-gain stable architecture supports direct ADC driving without external compensation.
It features integrated RFI-EMI rejection filtering, no phase reversal under overdrive, and robust ±4-kV HBM ESD protection. The device maintains 80 dB minimum CMRR and 100 dB open-loop gain at 2 kΩ load, supporting precision closed-loop configurations in noisy environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 8 MHz - enables stable unity-gain operation and supports >100 kHz closed-loop bandwidths in filter and sensor amplifier designs. |
| Input Offset Voltage (max) | ±1.5 mV - ensures ≤0.03% error in 5 V full-scale measurement systems without trimming. |
| Quiescent Current (per amp) | 550 µA (typ) - allows dual-amplifier operation on coin-cell or energy-harvesting supplies for >1-year battery life. |
| Input Bias Current (typ) | ±1 pA - permits use with >100 MΩ source impedances (e.g., pH electrodes, piezoresistive sensors) without significant offset drift. |
| Supply Voltage Range | 2.5 V to 5.5 V - supports direct interface with Li-ion, 3.3 V logic, and legacy 5 V systems without level-shifting. |
| Operating Temperature | –40°C to 125°C - qualified for under-hood automotive, industrial motor drives, and HVAC control modules. |
| Input Voltage Noise | 18 nV/√Hz at 1 kHz - preserves SNR in audio preamps and medical front-ends where signal amplitudes are sub-millivolt. |
Pinout & Package
TSV912AIDGKR is housed in an 8-pin SOIC (D) package measuring 3.91 mm × 4.90 mm, with exposed thermal pad connected to V– for enhanced power dissipation in continuous-output applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads up to ±50 mA short-circuit current; rail-to-rail swing supports full dynamic range into ADC inputs. |
| 2 | –IN A | Inverting input, channel A - accepts signals from 100 mV below V– to 100 mV above V+, enabling true single-supply transducer interfacing. |
| 3 | +IN A | Noninverting input, channel A - high-impedance node (1 pA bias) suitable for high-Z sensor bridges and thermocouple cold-junction compensation. |
| 4 | V– | Negative supply / ground reference - connects to PCB ground plane and exposed thermal pad; must be low-impedance for stability. |
| 5 | V+ | Positive supply - accepts 2.5–5.5 V; internal ESD clamps limit transient currents to ≤10 mA if input exceeds rails by >0.5 V. |
| 6 | –IN B | Inverting input, channel B - electrically isolated from channel A; supports dual-path signal processing (e.g., differential pair + reference buffer). |
| 7 | OUT B | Amplifier B output - independent output stage; enables simultaneous drive of two loads (e.g., motor phase + current sense amplifier). |
| 8 | +IN B | Noninverting input, channel B - identical electrical characteristics to +IN A; allows matched gain/offset performance in dual-channel topologies. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full 0–5 V signal swing in single-supply 5 V systems, maximizing ADC utilization and eliminating level-shifting components. |
| Low input bias current (1 pA typ) | Reduces voltage error across high-value feedback networks (>10 MΩ), critical for precision integrators and photodiode transimpedance amplifiers. |
| Integrated RFI-EMI rejection filter | Suppresses >60 dB of RF interference at 900 MHz, preventing rectification-induced DC offsets in automotive and industrial noise environments. |
| No phase reversal in overdrive | Prevents latch-up or uncontrolled output slewing when inputs exceed common-mode range - essential for fault-tolerant motor current sensing. |
| ±4-kV HBM ESD protection | Eliminates need for external TVS diodes in board-level ESD testing (IEC 61000-4-2 Level 3), reducing BOM count and layout area. |
Applications
| Motor Current Sensing | Battery Fuel Gauging |
|---|---|
Use Scenario: Real-time monitoring of phase current in BLDC motor drivers using low-side shunt resistors. IC Role / Device Role / Timing Role: Dual op-amp configured as differential amplifier (Ch A) and reference buffer (Ch B) for accurate 50–200 mV shunt voltage amplification. Use Value: 1.5 mV max offset ensures ≤0.3% current measurement error at 100 mV shunt drop; rail-to-rail output drives 12-bit SAR ADC directly. |
Use Scenario: Precision voltage and current sampling in lithium-ion battery management systems for state-of-charge estimation. IC Role / Device Role / Timing Role: Dual-channel signal conditioner: Ch A buffers cell voltage; Ch B amplifies coulomb counter shunt voltage with matched gain/offset. Use Value: 550 µA per amplifier enables <5 µA total quiescent current in always-on fuel gauge circuits; 125°C rating supports hot-pack operation. |
| Medical ECG Front-End | HVAC Temperature Control |
Use Scenario: Low-noise amplification of microvolt-level biopotential signals from dry-electrode ECG leads. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier core (dual op-amp in 3-op-amp topology) with guard drive capability. Use Value: 18 nV/√Hz noise density preserves diagnostic SNR at 0.05–150 Hz bandwidth; 1 pA bias prevents electrode polarization errors. |
Use Scenario: Signal conditioning for NTC thermistor bridges in smart thermostats and variable refrigerant flow (VRF) controllers. IC Role / Device Role / Timing Role: Dual-channel ratiometric amplifier: Ch A conditions thermistor voltage; Ch B references supply rail for ratio-metric accuracy. Use Value: ±0.5 µV/°C offset drift minimizes temperature error drift over –40°C to 85°C ambient; SOIC-8 footprint simplifies reflow assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV932IDR | Lower GBW (1.5 MHz), higher IQ (120 µA per amp), same SOIC-8 package and rail-to-rail I/O. | Not suitable for >100 kHz closed-loop filters or fast-settling ADC drivers; better for ultra-low-power sensor buffers. | Select LMV932IDR only when bandwidth demand is <200 kHz and quiescent current is primary constraint. |
| MCP6022-I/SN | Higher offset (2.5 mV max), lower ESD rating (2 kV HBM), same 8-MHz GBW and SOIC-8 footprint. | Limited to commercial temperature range (–40°C to 85°C); unsuitable for under-hood or industrial ambient extremes. | Choose MCP6022-I/SN only for cost-sensitive consumer applications where 125°C operation and 4-kV ESD are not required. |
Compared with LMV932IDR and MCP6022-I/SN, TSV912AIDGKR provides superior bandwidth-noise-power trade-off, extended temperature qualification, and higher ESD robustness - making it the preferred choice for automotive, industrial, and medical signal chains demanding precision and reliability.
Availability
TSV912AIDGKR is available at Aetrix Electronics and suitable for motor control, battery management, and medical instrumentation requiring stable component supply across long production lifecycles.
Supply support for TSV912AIDGKR 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 op-amps and industrial-grade signal conditioning solutions.
The TSV91x family was designed specifically for general-purpose, low-power, rail-to-rail op-amp applications - balancing speed, precision, and power efficiency in battery-powered, motor control, and sensor interface systems.
FAQ
What is the maximum capacitive load the TSV912AIDGKR can drive while maintaining stability?
The TSV912AIDGKR remains stable with up to 300 pF capacitive load, as verified by phase margin ≥55° across 10 pF–300 pF in unity-gain configuration. For loads >100 pF, TI recommends adding a 10 Ω series resistor between output and capacitor to suppress overshoot - a practice confirmed in Figure C025 and C026 of the SBOS878D datasheet.
Does the TSV912AIDGKR support single-supply operation down to 2.5 V?
Yes, the TSV912AIDGKR is fully specified for 2.5 V to 5.5 V operation. At 2.5 V supply, it maintains rail-to-rail input range (V– – 0.1 V to V+ + 0.1 V), 100 dB open-loop gain, and 8 MHz gain bandwidth - enabling direct use with 2.5 V microcontrollers and low-voltage ADCs without supply translation.
How does the input stage architecture of the TSV912AIDGKR prevent phase reversal?
The TSV912AIDGKR uses a complementary input stage with overlapping N- and P-channel differential pairs. When inputs exceed the common-mode range, both pairs remain active through a controlled transition region, avoiding the input-stage cutoff that causes phase reversal in conventional op-amps - a behavior validated in Figure C024 of the SBOS878D datasheet.
Can the TSV912AIDGKR be used in automotive infotainment systems?
Yes, the TSV912AIDGKR is qualified for –40°C to 125°C operation and meets AEC-Q100 stress test requirements for automotive grade 1. Its ±4-kV HBM ESD rating, low noise, and rail-to-rail performance make it suitable for audio preamplifiers, touch-sensor conditioners, and CAN/LIN bus interface signal chains in infotainment head units.
What is the thermal resistance (RθJA) of the TSV912AIDGKR in SOIC-8 package?
The TSV912AIDGKR in SOIC-8 (D) package has a junction-to-ambient thermal resistance (RθJA) of 157.6°C/W under standard JEDEC JESD51-7 2-layer board conditions. This value assumes proper PCB copper pour under the exposed thermal pad connected to V–, as detailed in Section 7.5 of the SBOS878D datasheet.
TSV912AIDGKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 4.5V/µs
- Gain Bandwidth Product:
- 8 MHz
- -3db Bandwidth:
- 80 kHz
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 550µA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
TSV912AIDGKR FAQ
1.How can I place an order for TSV912AIDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV912AIDGKR 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 TSV912AIDGKR reliable?
The price and inventory of TSV912AIDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV912AIDGKR is usually 5 days.
3.What payment methods are accepted for TSV912AIDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV912AIDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV912AIDGKR?
TSV912AIDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV912AIDGKR 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 TSV912AIDGKR?
For technical support, including TSV912AIDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV912AIDGKR requirements.
6.How does Aetrix verify that TSV912AIDGKR is sourced from the original manufacturer or authorized distributors?
All TSV912AIDGKR 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 TSV912AIDGKR meets industry standards.
7.What is the process for return or replacement of TSV912AIDGKR?
All TSV912AIDGKR units undergo pre-shipment inspection (PSI). If there is an issue with TSV912AIDGKR, 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 TSV912AIDGKR part is unused and in its original packaging.
Return procedure for TSV912AIDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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