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Texas Instruments OPA4170AQPWRQ1
- Part No.:
- OPA4170AQPWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
OPA4170AQPWRQ1.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,569
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Product details
Overview
OPA4170AQPWRQ1 from Texas Instruments is a quad-channel, automotive-grade operational amplifier designed for precision signal conditioning in harsh environments. It operates from 2.7 V to 36 V (±1.35 V to ±18 V), delivers 1.2 MHz gain bandwidth, 19 nV/√Hz input voltage noise, 120 dB CMRR at ±18 V, and rail-to-rail output swing - enabling high-accuracy sensor interfacing in HEV/EV powertrain control units.
For engineers reviewing the OPA4170AQPWRQ1 datasheet, OPA4170AQPWRQ1 pinout, OPA4170AQPWRQ1 application, or OPA4170AQPWRQ1 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification (–40°C to +125°C), RFI-filtered inputs, 15 pA max input bias current, and stable operation with up to 300 pF capacitive loads - critical for automotive ADAS front-end amplification and temperature measurement circuits.
Technical Context
The OPA4170AQPWRQ1 employs a proprietary input stage combining P-channel and N-channel JFET-like transistors, enabling rail-to-rail input operation down to 100 mV below V– and within 2 V of V+, while preventing phase reversal beyond common-mode limits. Its internal ESD protection includes current-steering diodes routed to supply rails with integrated TVS absorption.
It features a unity-gain-stable architecture optimized for low quiescent current (110 µA per amplifier) without sacrificing AC performance: 0.4 V/µs slew rate, 20 µs 0.1% settling time (10-V step), and >110 dB open-loop gain across –40°C to +125°C - supporting precision integrators and strain gauge amplifiers in safety-critical automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 2.7 V to 36 V single-supply (±1.35 V to ±18 V) - supports wide battery voltage variation in 12 V/24 V automotive systems without external regulation. |
| Gain Bandwidth | 1.2 MHz - enables stable closed-loop operation at gains ≥1 for DC-coupled sensor signal chains with minimal phase margin loss. |
| Input Voltage Noise | 19 nV/√Hz at 1 kHz - ensures low-noise amplification of microvolt-level signals from thermocouples or bridge sensors. |
| CMRR | 120 dB at ±18 V - rejects common-mode interference from high-power switching nodes in motor control PCBs. |
| Quiescent Current | 110 µA per amplifier at 25°C - allows four-channel operation in always-on vehicle modules with <450 µA total IQ budget. |
| Input Bias Current | 15 pA maximum - minimizes voltage error in high-impedance pH or photodiode front-ends without requiring guard traces. |
| Output Swing | Rail-to-rail: within 10 mV of rails at zero load - preserves dynamic range when driving ADC reference buffers or analog comparators. |
Pinout & Package
TSSOP-14 package (5.00 mm × 4.40 mm body size) with exposed thermal pad; JEDEC MO-153 compliant; RoHS-compliant matte tin lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | OUT A/B/C/D | Amplifier output terminals - each drives independent load; capable of sourcing/sinking 17 mA short-circuit current. |
| 2, 6, 9, 13 | –IN A/B/C/D | Inverting inputs - high-impedance (10¹² Ω || 3 pF) nodes sensitive to layout; require matched trace lengths in differential pairs. |
| 3, 5, 10, 12 | +IN A/B/C/D | Noninverting inputs - support rail-to-rail common-mode range; tolerate 100 mV beyond V+ with reduced performance. |
| 4 | V+ | Positive supply rail - must be decoupled with 0.1 µF ceramic capacitor placed ≤2 mm from pin; accepts up to 40 V absolute max. |
| 11 | V– | Negative supply rail - serves as reference for all four amplifiers; connects to system ground or negative battery terminal. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 | Qualified for –40°C to +125°C ambient operation - validated for engine bay and transmission control module placement. |
| RFI-Filtered Inputs | EMIRR of 140 dB at 100 MHz - suppresses AM/FM band interference from infotainment systems without external RC filters. |
| No Phase Reversal | Input overdrive beyond common-mode range forces output to rail instead of inverting - prevents latch-up in noninverting configurations. |
| Capacitive Load Drive | Stable with up to 300 pF - eliminates need for isolation resistors when driving long traces or ADC input capacitance directly. |
| Low Offset Drift | ±0.3 µV/°C typical - maintains <2 µV total drift over full temperature range, critical for uncalibrated temperature sensing. |
Applications
| Automotive Cabin Climate Control | HEV/EV Battery Cell Monitoring |
|---|---|
|
Use Scenario: Amplifying thermistor voltage in HVAC blend door actuator feedback loop under pulsed 12 V supply conditions. IC Role / Device Role / Timing Role: Quad-channel signal conditioner providing simultaneous offset correction, filtering, and rail-to-rail output drive to MCU ADC inputs. Use Value: 110 µA per channel enables continuous monitoring during sleep mode; RFI filtering prevents false actuator commands from ignition noise. |
Use Scenario: Isolating and scaling cell voltage differences in 96-cell EV battery pack using discrete resistor dividers. IC Role / Device Role / Timing Role: Precision buffer for high-impedance divider outputs, rejecting common-mode ripple from DC-DC converters. Use Value: 120 dB CMRR eliminates 100 mV ripple-induced errors; 15 pA IB avoids loading 1 MΩ dividers and distorting readings. |
| ADAS Radar Signal Conditioning | Industrial Temperature Measurement |
|
Use Scenario: Amplifying low-amplitude IF signals from 77 GHz radar receivers before digitization by high-speed ADC. IC Role / Device Role / Timing Role: Low-noise, low-distortion gain stage with THD+N <0.0002% at 1 kHz - preserving signal integrity for FFT-based object detection. Use Value: 19 nV/√Hz noise floor enables resolution of sub-millivolt Doppler shifts; 1.2 MHz GBW supports baseband signal bandwidths. |
Use Scenario: Conditioning output of platinum RTD (PT100) in industrial oven controller with 0.1°C accuracy requirement. IC Role / Device Role / Timing Role: Constant-current excitation buffer and 4-wire Kelvin sense amplifier with programmable gain. Use Value: ±0.3 µV/°C drift contributes <0.03°C error over 100°C span; rail-to-rail output maximizes ADC utilization across full temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV324QDRQ1 | Lower supply range (2.7 V to 5.5 V), 1 MHz GBW, 43 nV/√Hz noise, no RFI filtering | Restricted to low-voltage automotive modules (e.g., body control units); unsuitable for 24 V battery monitoring | Select when cost sensitivity outweighs noise/EMI requirements and supply stays below 5.5 V. |
| TSV914IQDT | Higher quiescent current (250 µA/channel), 8 MHz GBW, 14 nV/√Hz noise, no AEC-Q100 qualification | Lacks automotive qualification; requires external ESD protection for under-hood use | Choose for non-automotive industrial applications needing higher speed and lower noise, with external qualification validation. |
Compared with LMV324QDRQ1 and TSV914IQDT, the OPA4170AQPWRQ1 uniquely combines AEC-Q100 Grade 1 qualification, 36 V operation, and RFI immunity - making it the only drop-in solution for high-voltage automotive sensor front-ends requiring zero-layout changes.
Availability
OPA4170AQPWRQ1 is available at Aetrix Electronics and suitable for automotive cabin climate control, HEV/EV battery management, ADAS radar signal conditioning, and industrial temperature measurement requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA4170AQPWRQ1 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 automotive IC design expertise and ISO/TS 16949-certified manufacturing.
The OPAx170-Q1 product line was engineered specifically for automotive signal conditioning - delivering precision, robustness, and qualification compliance in a single-supply op-amp family scalable from single to quad channels.
FAQ
What automotive qualification level does the OPA4170AQPWRQ1 meet?
The OPA4170AQPWRQ1 is AEC-Q100 qualified as Grade 1, meaning it is rated for ambient operating temperatures from –40°C to +125°C and has passed HBM ESD Level 3A (±4 kV) and CDM Level C5 (±750 V) testing. This qualification validates its suitability for engine compartment and transmission control applications where thermal and electrical stress are severe.
Can the OPA4170AQPWRQ1 operate with a single 3.3-V supply?
Yes, the OPA4170AQPWRQ1 supports single-supply operation from 2.7 V to 36 V, including 3.3 V. At 3.3 V, it maintains rail-to-rail output swing (within 115 mV of V+ and 70 mV of V– at 1 mA load), 1.2 MHz gain bandwidth, and 110 µA per amplifier quiescent current - making it viable for low-power automotive infotainment sensor interfaces.
Does the OPA4170AQPWRQ1 require external compensation for stability?
No, the OPA4170AQPWRQ1 is unity-gain stable and does not require external compensation. It remains stable driving capacitive loads up to 300 pF, eliminating the need for series isolation resistors in ADC driver or filter applications - a key advantage over many general-purpose op-amps that oscillate under similar conditions.
How does the RFI filtering in the OPA4170AQPWRQ1 improve system-level EMC performance?
The OPA4170AQPWRQ1 integrates RFI filtering on both inputs, achieving 140 dB EMIRR at 100 MHz (P = 10 dBm). This suppresses demodulation of RF energy from cellular, Bluetooth, or AM radio bands - preventing erroneous output saturation in automotive sensor amplifiers without adding board space for external LC filters.
What is the maximum capacitive load the OPA4170AQPWRQ1 can drive while maintaining phase margin?
The OPA4170AQPWRQ1 is characterized for stable operation with capacitive loads up to 300 pF, as confirmed in the datasheet's Typical Characteristics section (Figure 23–24). Driving loads beyond this value may reduce phase margin and cause overshoot or ringing; for heavier loads, an external isolation resistor (e.g., 10–50 Ω) is recommended between output and capacitance.
OPA4170AQPWRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.4V/µs
- Gain Bandwidth Product:
- 1.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 8 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 110µA (x4 Channels)
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
OPA4170AQPWRQ1 FAQ
1.How can I place an order for OPA4170AQPWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA4170AQPWRQ1 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 OPA4170AQPWRQ1 reliable?
The price and inventory of OPA4170AQPWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA4170AQPWRQ1 is usually 5 days.
3.What payment methods are accepted for OPA4170AQPWRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA4170AQPWRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA4170AQPWRQ1?
OPA4170AQPWRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA4170AQPWRQ1 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 OPA4170AQPWRQ1?
For technical support, including OPA4170AQPWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA4170AQPWRQ1 requirements.
6.How does Aetrix verify that OPA4170AQPWRQ1 is sourced from the original manufacturer or authorized distributors?
All OPA4170AQPWRQ1 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 OPA4170AQPWRQ1 meets industry standards.
7.What is the process for return or replacement of OPA4170AQPWRQ1?
All OPA4170AQPWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with OPA4170AQPWRQ1, 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 OPA4170AQPWRQ1 part is unused and in its original packaging.
Return procedure for OPA4170AQPWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA4170AQPWRQ1 Tags
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