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Texas Instruments OPA653IDBVT
- Part No.:
- OPA653IDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA653IDBVT.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:444
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Product details
Overview
OPA653IDBVT from Texas Instruments is a wideband, fixed-gain, JFET-input voltage-feedback operational amplifier optimized for high-fidelity pulse and frequency-domain applications. It delivers 500 MHz small-signal bandwidth at noninverting gain of +2 V/V, 2675 V/μs slew rate, and –72 dBc 2nd-harmonic distortion at 10 MHz - enabling use in oscilloscope front-ends and high-impedance probe signal conditioning.
For engineers reviewing the OPA653IDBVT datasheet, OPA653IDBVT pinout, OPA653IDBVT application, or OPA653IDBVT equivalent, key selection criteria include its internal +2/–1 V/V gain setting, 6.1 nV/√Hz input voltage noise, ±10 pA input bias current, SOT-23-5 package thermal resistance (105 °C/W), and 500-MHz bandwidth with fast overdrive recovery (8 ns).
Technical Context
The OPA653IDBVT uses a complementary bipolar JFET-input process to achieve ultra-low input bias current (±10 pA typ) and high input impedance (10¹² Ω || 2.5 pF), while maintaining 500-MHz gain-bandwidth at G = +2 V/V. Its internal 160-Ω RF and RG resistors fix gain and minimize external component count.
It operates from ±3.5 V to ±6.5 V supplies, draws 32 mA quiescent current, and features fast settling (7.9 ns to 1% on 4-V step) and low overshoot (14%). The device is compensated for optimal stability at noise gain ≥ +2 V/V and requires RISO isolation for capacitive loads >5 pF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 500 MHz at G = +2 V/V - supports full-spectrum fidelity up to UHF in test equipment signal chains |
| Slew Rate | 2675 V/μs - enables accurate reproduction of sub-nanosecond edges without slew-induced distortion |
| Input Voltage Noise | 6.1 nV/√Hz - preserves SNR in high-source-impedance probe and data acquisition front-ends |
| Harmonic Distortion | –72 dBc (2nd harmonic, 10 MHz) - meets spectral purity requirements for FFT-based analysis systems |
| Input Bias Current | ±10 pA (typ, +25°C) - minimizes DC error and leakage-induced offset in high-Z sensor interfaces |
| Supply Voltage Range | ±3.5 V to ±6.5 V - compatible with standard ±5 V and ±6 V lab-grade power rails |
| Quiescent Current | 32 mA (typ) - balances performance and thermal load in compact SOT-23-5 PCB layouts |
Pinout & Package
SOT-23-5 package (DBV) with exposed pad for thermal enhancement; 5-pin surface-mount outline measuring 2.9 mm × 1.6 mm × 1.15 mm (max height). Pin 1 marked by dot; pin 3 is output; pins 2 and 4 are inputs; pins 1 and 5 are supply rails.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (VS+) | Positive supply rail | Accepts +3.5 V to +6.5 V; must be decoupled with 0.1-μF capacitor placed ≤6.35 mm from pin |
| Pin 2 (VIN–) | Inverting input | High-impedance node sensitive to parasitic capacitance; requires shortest possible trace to feedback resistor |
| Pin 3 (VOUT) | Amplifier output | Capable of ±70 mA drive into 100-Ω load; requires series RISO (≥10 Ω) when driving >5 pF capacitance |
| Pin 4 (VIN+) | Noninverting input | 10¹² Ω || 2.5 pF input; terminated with 49.9-Ω shunt in 50-Ω test setups to match source impedance |
| Pin 5 (VS–) | Negative supply rail | Accepts –3.5 V to –6.5 V; shares single-point ground with VS+ decoupling for PSRR optimization |
Key Features
| Feature | Design Value |
|---|---|
| Fixed internal gain configuration | G = +2 V/V (noninverting) or G = –1 V/V (inverting) - eliminates external resistor matching errors and layout sensitivity |
| Ultra-low input voltage noise | 6.1 nV/√Hz - enables high-resolution signal capture in low-level probe and ADC driver applications |
| Fast overdrive recovery | 8 ns - ensures minimal dead time after large transient events in oscilloscope and pulse analyzer front-ends |
| JFET-input stage | ±10 pA input bias current - maintains accuracy in high-impedance (>1 MΩ) sensor and piezoelectric interfaces |
| Internal RF/RG resistors | 160 Ω each - sets precise gain and reduces board space vs discrete resistor networks while minimizing thermal drift |
Applications
| Test and Measurement Front-End | High-Impedance Probe Amplifier |
|---|---|
Use Scenario: Signal conditioning stage in 1-GHz bandwidth oscilloscope input path with 10× passive probe interface. IC Role / Device Role / Timing Role: Noninverting +2 V/V gain block amplifying attenuated probe signal while preserving edge fidelity and low noise floor. Use Value: 500-MHz bandwidth and 7.9-ns settling enable accurate capture of fast transients; 6.1-nV/√Hz noise ensures minimal degradation of probe SNR. |
Use Scenario: Active buffer in 10-MΩ/12-pF high-impedance probe head for benchtop multimeters and analyzers. IC Role / Device Role / Timing Role: Unity-gain follower (configured as G = +2 with grounded VIN– and 50-Ω termination) delivering low-output-impedance drive. Use Value: ±10 pA input bias current prevents loading of high-Z sources; 10¹² Ω input impedance maintains probe accuracy across DC–500 MHz. |
| Data Acquisition Card Input | ADC Driver for Wideband Sampling |
Use Scenario: Front-end amplifier in 100-MS/s, 14-bit data acquisition system acquiring signals from piezoelectric sensors. IC Role / Device Role / Timing Role: Single-ended to differential conversion and gain stage preceding anti-alias filter and ADC. Use Value: –72 dBc THD at 10 MHz ensures clean spectral representation; fast settling guarantees accurate sampling of transient waveforms. |
Use Scenario: Buffering and level-shifting stage driving the input of a 1-GSPS RF-sampling ADC in communications test equipment. IC Role / Device Role / Timing Role: High-speed, low-noise driver providing 2-VPP swing into 100-Ω load with minimal group delay variation. Use Value: 2675 V/μs slew rate prevents slewing artifacts on multi-tone signals; 475-MHz large-signal bandwidth supports full Nyquist zone operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wideband, fixed-gain amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA656IDBVR | Same JFET input, but unity-gain stable; 500-MHz BW at G = 1, higher 7-nV/√Hz noise, lower 290-V/μs slew rate | Better for variable-gain or G = 1 configurations; less suitable for fixed +2 V/V pulse fidelity-critical paths | Select OPA656IDBVR only if gain flexibility or lower quiescent current (25 mA) outweighs need for 2675-V/μs slew and –72-dBc THD |
| OPA657U | Unity-gain stable, 350-MHz BW, 700-V/μs slew, 4.8-nV/√Hz noise, ±2.5-pA bias current | Superior noise and bias specs, but narrower bandwidth and slower slew limit use in >400-MHz transient capture | Choose OPA657U when ultra-low noise dominates over bandwidth - e.g., precision low-frequency sensor signal chains with occasional high-frequency content |
Compared with OPA653IDBVT, OPA656IDBVR trades pulse fidelity for gain flexibility, while OPA657U prioritizes noise/bias over speed - making OPA653IDBVT uniquely suited for fixed-gain, high-slew, high-bandwidth measurement front-ends where edge integrity and spectral purity are co-critical.
Availability
OPA653IDBVT is available at Aetrix Electronics and suitable for test and measurement instrumentation, high-impedance probe design, and data acquisition card development requiring stable component supply, consistent parametric performance, and long-term industrial availability.
Supply support for OPA653IDBVT 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 heritage in high-performance op amps and signal chain solutions.
The OPA653 forms part of TI's Ultra-Wideband Operational Amplifier product line, engineered specifically for time-domain fidelity and spectral purity in test equipment, oscilloscopes, and high-speed data acquisition systems.
FAQ
What is the maximum recommended supply voltage for the OPA653IDBVT?
The OPA653IDBVT has an absolute maximum supply voltage rating of ±6.5 V. For reliable continuous operation, TI specifies a recommended operating range of ±3.5 V to ±6 V. Operating at ±6 V delivers optimal harmonic distortion (–72 dBc) and bandwidth (500 MHz); exceeding ±6 V risks permanent damage and voids warranty. Always observe ESD handling precautions during assembly.
Can the OPA653IDBVT be used in inverting configuration with gain of –1 V/V?
Yes, the OPA653IDBVT supports inverting gain of –1 V/V using its internal 160-Ω RF and RG resistors. In this mode, VIN– is driven from a low-impedance source (e.g., op amp output), and a 72.3-Ω termination to ground sets the input impedance to ~50 Ω. Note that phase margin decreases versus noninverting mode, causing more peaking and overshoot - verified in Figures 2 and 14 of the OPA653IDBVT datasheet.
Does the OPA653IDBVT require external gain-setting resistors?
No, the OPA653IDBVT integrates precision 160-Ω feedback (RF) and gain-setting (RG) resistors internally. This eliminates external resistor matching errors, thermal drift, and PCB layout sensitivity - enabling true fixed gain of +2 V/V (noninverting) or –1 V/V (inverting) without any external components beyond decoupling caps and optional RISO for capacitive loads.
What is the thermal resistance (θJA) of the OPA653IDBVT in its SOT-23-5 package?
The OPA653IDBVT in the DBV (SOT-23-5) package has a junction-to-ambient thermal resistance (θJA) of 105 °C/W under standard JEDEC 2-layer board conditions. This value assumes proper PCB copper pour under the exposed pad and adequate airflow. At 32 mA quiescent current and ±6 V supplies, power dissipation is ~384 mW - resulting in ~40°C junction rise above ambient at TA = +25°C.
How does the OPA653IDBVT handle capacitive loads?
The OPA653IDBVT requires series output isolation (RISO) when driving capacitive loads >5 pF to maintain stability. Figure 17 in the datasheet provides RISO values: 10 Ω for ≤5 pF, 15 Ω for 47 pF, and 23.7 Ω for 22 pF. RISO must be placed as close as possible to the VOUT pin. Without RISO, capacitive loading introduces a pole that degrades phase margin, causing peaking, overshoot, and potential oscillation - especially critical in probe and cable-driver applications.
OPA653IDBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- J-FET
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 2675V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 500 MHz
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 32mA
- Current - Output / Channel:
- 70 mA
- Voltage - Supply Span (Min):
- 7 V
- Voltage - Supply Span (Max):
- 13 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
OPA653IDBVT FAQ
1.How can I place an order for OPA653IDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA653IDBVT 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 OPA653IDBVT reliable?
The price and inventory of OPA653IDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA653IDBVT is usually 5 days.
3.What payment methods are accepted for OPA653IDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA653IDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA653IDBVT?
OPA653IDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA653IDBVT 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 OPA653IDBVT?
For technical support, including OPA653IDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA653IDBVT requirements.
6.How does Aetrix verify that OPA653IDBVT is sourced from the original manufacturer or authorized distributors?
All OPA653IDBVT 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 OPA653IDBVT meets industry standards.
7.What is the process for return or replacement of OPA653IDBVT?
All OPA653IDBVT units undergo pre-shipment inspection (PSI). If there is an issue with OPA653IDBVT, 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 OPA653IDBVT part is unused and in its original packaging.
Return procedure for OPA653IDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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