OPA4170-Q1 - Quad 36V Low-Power Op Amp | TI Automotive
MPN: OPA4170-Q1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.65 | $16.50 |
| 100 | $1.35 | $135.00 |
| 500 | $1.15 | $575.00 |
| 1,000 | $0.95 | $950.00 |
Drop-in alternatives for OPA4170-Q1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
OPA4170AIDR
✅ Drop-In📋 Reference alternative (not in catalog)
OPA4170AIPW
✅ Drop-In📋 Reference alternative (not in catalog)
OPA4991-Q1
✅ Drop-In📋 Reference alternative (not in catalog)
LM324QT
✅ Drop-In✓ In Stock
$0.19 / Unit
View Datasheet →SGM8270-4
✅ Drop-In📋 Reference alternative (not in catalog)
OPA4170-Q1 Maximum Ratings & Electrical Characteristics
| Number of Channels | 4 |
| Supply Voltage Range | 2.7 V to 36 V (±1.35 V to ±18 V) |
| Gain Bandwidth Product | 1.2 MHz |
| Quiescent Current per Channel | 475 µA |
| Input Offset Voltage | 500 µV (max) |
| Input Bias Current | 15 pA (max) |
| Common-Mode Rejection Ratio | 120 dB |
| Rail-to-Rail Input | Yes |
| Rail-to-Rail Output | Yes |
| Operating Temperature Range | -40°C to +125°C |
| Package | TSSOP-14 (PW) |
| Mounting Type | Surface Mount |
| AEC-Q100 Qualified | Yes |
| RoHS Compliant | Yes |
| Output Current | 20 mA (typical) |
OPA4170-Q1 Pin Configuration
| Pin 1 | 1OUT — Output of amplifier 1 |
| Pin 2 | 1IN- — Inverting input of amplifier 1 |
| Pin 3 | 1IN+ — Non-inverting input of amplifier 1 |
| Pin 4 | VCC+ — Positive power supply |
| Pin 5 | 2IN+ — Non-inverting input of amplifier 2 |
| Pin 6 | 2IN- — Inverting input of amplifier 2 |
| Pin 7 | 2OUT — Output of amplifier 2 |
| Pin 8 | 3OUT — Output of amplifier 3 |
| Pin 9 | 3IN- — Inverting input of amplifier 3 |
| Pin 10 | 3IN+ — Non-inverting input of amplifier 3 |
| Pin 11 | VCC- — Negative power supply (or ground) |
| Pin 12 | 4IN+ — Non-inverting input of amplifier 4 |
| Pin 13 | 4IN- — Inverting input of amplifier 4 |
| Pin 14 | 4OUT — Output of amplifier 4 |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
OPA4170-Q1 is suitable for 6 applications: Automotive Battery Management, Motor Control, Sensor Signal Conditioning, Power Supply Control, Audio Signal Processing, Industrial Automation.
Automotive Battery Management
The OPA4170-Q1 amplifies shunt resistor voltages in battery monitoring systems. Its low offset voltage (500 µV) and low quiescent current (475 µA/ch) ensure accurate current sensing with minimal power drain. The wide supply range (2.7V-36V) accommodates 12V and 24V automotive batteries. Rail-to-rail output maximizes dynamic range for ADC interfaces. AEC-Q100 qualification ensures reliability in harsh under-hood environments.
Recommended
Motor Control
In motor control loops, the OPA4170-Q1 conditions current sense signals from shunt resistors. Its 1.2 MHz bandwidth is sufficient for PWM frequencies up to 20 kHz. The low input bias current (15 pA) minimizes errors when interfacing with high-impedance sensors. Rail-to-rail output allows direct connection to ADC inputs. The quad configuration saves board space in multi-phase motor drives. Automotive qualification supports use in electric power steering and traction inverters.
Recommended
Sensor Signal Conditioning
The OPA4170-Q1 amplifies signals from temperature, pressure, and position sensors. Its low offset and drift ensure accurate measurement over temperature. The CMOS input stage provides high input impedance, minimizing loading on sensor outputs. Rail-to-rail input and output allow full-scale signal processing. The wide supply range supports both 5V and 3.3V systems. Automotive qualification makes it suitable for engine control and safety systems.
Recommended
Power Supply Control
The OPA4170-Q1 is used in power supply feedback loops for voltage and current regulation. Its 1.2 MHz bandwidth provides adequate phase margin for typical switching converters. The low quiescent current reduces standby power. Rail-to-rail output allows driving error amplifier inputs. The wide supply range enables use in both primary and secondary side control. Automotive qualification supports use in DC-DC converters for electric vehicles.
Recommended
Audio Signal Processing
The OPA4170-Q1 can be used in automotive audio systems for active filtering and pre-amplification. Its low noise and distortion preserve audio quality. The rail-to-rail output maximizes headroom in single-supply designs. The quad configuration allows multi-channel processing in a single IC. The wide supply range supports both 5V and 12V audio rails. Automotive qualification ensures reliable operation in infotainment systems.
Recommended
Industrial Automation
The OPA4170-Q1 is used in industrial control systems for signal conditioning and process control. Its low offset and drift ensure accurate measurement in harsh environments. The wide supply range (up to 36V) allows direct operation from 24V industrial supplies. Rail-to-rail output interfaces with PLCs and ADCs. The quad configuration reduces component count in multi-channel systems. Although not AEC-Q100, it is suitable for industrial temperature ranges.
Recommended
Recommended Products Summary
Engineering reference data for OPA4170-Q1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | OPA4170AIDR | OPA4170AIPW | OPA4991-Q1 | LM324QT | SGM8270-4 |
|---|---|---|---|---|---|---|
| Package | TSSOP-14 | SOIC-14 | TSSOP-14 | TSSOP-14 | TSSOP-14 | TSSOP-14 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | STMicroelectronics | SGMC |
| Supply Voltage Range | 2.7V to 36V | 2.7V to 36V | 2.7V to 36V | 2.7V to 40V | 3V to 32V | 2.7V to 36V |
| Gain Bandwidth Product | 1.2 MHz | 1.2 MHz | 1.2 MHz | 4.5 MHz | 1.3 MHz | 1.2 MHz |
| Quiescent Current per Channel | 475 µA | 475 µA | 475 µA | 475 µA | 700 µA | 500 µA |
| Input Offset Voltage (max) | 500 µV | 500 µV | 500 µV | 500 µV | 7 mV | 500 µV |
| Input Bias Current (max) | 15 pA | 15 pA | 15 pA | 15 pA | 250 nA | 15 pA |
| AEC-Q100 Qualified | Yes | No | No | Yes | No | No |
Key Differentiators
- Automotive AEC-Q100 qualification (vs OPA4170AIDR)
- Lower quiescent current (vs LM324QT)
- Lower input bias current (vs LM324QT)
Design Notes
The OPA4170-Q1 operates from 2.7V to 36V. For automotive applications, use a stable supply with proper decoupling. Place a 0.1 µF ceramic capacitor close to each power pin (VCC+ and VCC-) to filter high-frequency noise. For noisy environments, add a 10 µF electrolytic capacitor in parallel.
For optimal performance, use a ground plane and keep traces short. The TSSOP-14 package has a thermal pad (exposed pad) that should be soldered to a large copper area for heat dissipation. Ensure adequate thermal vias to the ground plane to improve thermal performance.
Avoid exceeding the absolute maximum supply voltage of 40V. Also, ensure the input common-mode voltage stays within the specified range to prevent phase reversal. For capacitive loads above 300 pF, add a series resistor to maintain stability.
Compliance Information
AEC-Q100 qualified per TI product page. RoHS compliant. REACH compliance assumed based on TI policy.
