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Texas Instruments OPA832IDR
- Part No.:
- OPA832IDR
- Manufacturer:
- Texas Instruments
- Category:
- Video Amps and Modules
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA832IDR.pdf
- Description:
- IC AMP VOLTAGE FEEDBACK 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,089
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Product details
Overview
OPA832IDR from Texas Instruments is a low-power, single-supply, fixed-gain +2 voltage-feedback operational amplifier optimized for video line driving and CCD imaging. It delivers 80MHz small-signal bandwidth (G = +2), 350V/µs slew rate, 4.9VPP output swing on +5V supply, 9.3nV/√Hz input voltage noise, and operates from +2.8V to +11V single supply. It serves as a high-fidelity buffer in portable consumer video systems.
For engineers reviewing the OPA832IDR datasheet, OPA832IDR pinout, OPA832IDR application, or OPA832IDR equivalent, key selection criteria include its rail-to-rail output swing capability with ground-inclusive input range, low distortion at 5MHz (−64dBc 2nd-harmonic, RL = 150Ω), NTSC-compliant differential gain (0.11%) and phase (0.14°), and SOT23-5 package compatibility with space-constrained portable designs.
Technical Context
The OPA832IDR uses a voltage-feedback architecture with internal 400Ω RF/RG resistors, enabling stable +2 gain without external components. Its complementary common-emitter output stage achieves 30mV from ground and 130mV from VS, supporting wide dynamic range in single-supply configurations.
Input voltage range extends to −0.5V (below ground) and within 1V of VS; output drive supports ±4.6V into 150Ω at +5V supply. Thermal resistance is 150°C/W in SOT23-5, requiring careful power dissipation management above 3.9mA quiescent current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 80MHz at G = +2 (RL = 150Ω), enabling full NTSC/PAL video bandwidth support without peaking compensation |
| Slew Rate | 350V/µs (G = +2, 2V step), ensuring minimal distortion on fast video transients and composite sync edges |
| Input Voltage Noise | 9.3nV/√Hz (f > 1MHz), preserving SNR in wide-dynamic-range CCD and ultrasound front-ends |
| Output Swing | ±4.6V into 150Ω on +5V supply, delivering 4.9VPP across 75Ω video loads with <0.2V headroom loss |
| Supply Range | +2.8V to +11V single supply (or ±1.4V to ±5.5V dual), supporting battery-powered 3.3V and mains-powered 5V/10V systems |
| Quiescent Current | 3.9mA typical at +5V, enabling low thermal load in handheld medical and consumer devices |
| NTSC dG/dP | 0.11% differential gain / 0.14° differential phase (RL = 150Ω), meeting broadcast-grade video fidelity requirements |
Pinout & Package
SOT23-5 surface-mount package (DBV), 5-pin ultra-small footprint (2.9mm × 1.6mm × 1.15mm), Pb-free, rated for −40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - Output | Amplified signal output | Drives 75Ω video lines or 150Ω ADC inputs; swings to within 30mV of ground and 130mV of VS |
| 2 - −VS | Negative supply or ground reference | Connect to system ground in single-supply mode; enables true ground-referenced input operation |
| 3 - Noninverting Input | Positive input node | Accepts signals down to −0.5V; biased via external resistor divider for DC common-mode level setting |
| 4 - +VS | Positive supply terminal | Supports +2.8V to +11V; decoupling capacitor required adjacent to pin for stability at >10MHz |
| 5 - Inverting Input | Negative input node | Internally connected to 400Ω feedback network; sets fixed +2 gain when noninverting input is properly biased |
Key Features
| Feature | Design Value |
|---|---|
| Fixed +2 gain with internal 400Ω RF/RG | Eliminates external gain-setting resistors, reducing BOM count and layout sensitivity in video routing |
| Ground-inclusive input range | Accepts input voltages down to −0.5V on single +5V supply, enabling direct interface with AC-coupled video sources |
| Rail-to-rail output swing | Delivers 4.9VPP into 75Ω with only 30mV headroom loss-critical for maximizing dynamic range in portable displays |
| Low harmonic distortion | −64dBc 2nd-harmonic at 5MHz/2VPP into 150Ω ensures clean composite video and ultrasound baseband signals |
| Single-supply optimized architecture | Complementary common-emitter output stage and input stage biasing enable stable operation without dual supplies |
Applications
| Single-Supply Video Line Driver | CCD Imaging Channel |
|---|---|
Use Scenario: Driving multiple 75Ω coaxial video lines from a single DAC output in portable camcorders or security DVRs. IC Role / Device Role / Timing Role: Fixed-gain +2 buffer amplifying composite NTSC/PAL signals while maintaining dG/dP integrity. Use Value: Delivers 0.11% differential gain and 0.14° phase error across 1–4 video loads, eliminating need for external calibration. |
Use Scenario: Amplifying low-level analog outputs from linear CCD sensors in handheld barcode scanners or medical endoscopes. IC Role / Device Role / Timing Role: Low-noise, wide-bandwidth signal conditioning stage before ADC sampling. Use Value: 9.3nV/√Hz input voltage noise preserves >70dB SFDR in 12-bit CCD readout chains operating at 5MHz. |
| Low-Power Ultrasound Front-End | Portable Consumer Electronics |
Use Scenario: Buffering time-gain-controlled echo signals in battery-powered portable ultrasound probes. IC Role / Device Role / Timing Role: High-speed, low-quiescent-current driver between TGC amplifier and ADC input. Use Value: 3.9mA supply current at +5V enables >8-hour probe runtime; 350V/µs slew rate resolves 5MHz echo bursts without slewing distortion. |
Use Scenario: Signal conditioning in compact HDMI-to-analog converters or USB-C display adapters. IC Role / Device Role / Timing Role: Single-supply video gain block interfacing between digital video processors and analog RGB outputs. Use Value: SOT23-5 footprint saves PCB area vs SO-8; +2.8V minimum supply supports Li-ion battery operation down to 3.0V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-gain video buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA830IDR | Adjustable gain (external RF/RG), 250MHz GBW, higher 6.5mA quiescent current | Used where variable gain or higher bandwidth is required; not pin-compatible with OPA832IDR | Select OPA830IDR only if gain flexibility or >80MHz bandwidth is mandatory; requires redesign of feedback network. |
| LMH6702MF/NOPB | Unity-gain stable, 1.8GHz GBW, 3.5mA quiescent current, SO-8 only | Targeted at RF/IF gain blocks-not optimized for NTSC dG/dP or single-supply video line driving | Choose LMH6702MF/NOPB for wideband RF amplification; avoid for video line drivers due to unverified dG/dP performance. |
Compared with OPA832IDR, OPA830IDR offers gain configurability at higher power and bandwidth cost, while LMH6702MF/NOPB provides RF-grade speed but lacks video-specific optimization-making OPA832IDR the optimal choice for space-constrained, low-power, broadcast-compliant video buffering.
Availability
OPA832IDR is available at Aetrix Electronics and suitable for single-supply video line drivers, CCD imaging channels, and low-power ultrasound front-ends requiring stable component supply across industrial temperature ranges.
Supply support for OPA832IDR 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 over 90 years of innovation in precision amplifiers and signal chain solutions.
The OPA832 belongs to TI's high-speed, low-power op amp product line, designed specifically for single-supply video, imaging, and portable instrumentation applications demanding low noise, wide bandwidth, and rail-to-rail output swing.
FAQ
What is the maximum output voltage swing of the OPA832IDR on a +5V supply?
The OPA832IDR delivers ±4.6V output swing into a 150Ω load referenced to ground on a +5V supply, resulting in 4.9VPP total swing. This is achieved using its complementary common-emitter output stage, which swings to within 30mV of ground and 130mV of VS. The OPA832IDR datasheet confirms this under "OUTPUT" specifications for VS = +5V, RL = 150Ω to VCM = 2V.
Does the OPA832IDR support true single-supply operation with input signals below ground?
Yes-the OPA832IDR supports input voltages as low as −0.5V on a +5V supply, verified in its Electrical Characteristics table under "INPUT" for VS = +5V. This ground-inclusive input range enables direct connection to AC-coupled video sources without level-shifting circuitry, a key feature distinguishing it from conventional rail-to-rail input op amps.
What is the small-signal bandwidth of the OPA832IDR at G = +2, and how does it vary with supply voltage?
The OPA832IDR achieves 80MHz small-signal bandwidth at G = +2 with ±5V supplies, 92MHz at +5V, and 95MHz at +3.3V (all measured at VO ≤ 0.5VPP, RL = 150Ω). Bandwidth increases slightly at lower supplies due to reduced internal device capacitance effects-confirmed in Tables 1–3 of the OPA832IDR datasheet.
Can the OPA832IDR be used as a unity-gain buffer?
No-the OPA832IDR is internally compensated for stable operation only at gains of +1, +2, and −1, with fixed internal 400Ω RF/RG resistors. While gain = +1 is supported, it exhibits 4.2dB peaking per the OPA832IDR datasheet's "Peaking at a Gain of +1" specification, making it unsuitable for flat-response unity-gain buffering without external compensation.
What package type is used for the OPA832IDR, and what are its thermal characteristics?
The OPA832IDR uses the SOT23-5 (DBV) package: 2.9mm × 1.6mm × 1.15mm, Pb-free, with thermal resistance θJA = 150°C/W. This value is specified in the "THERMAL CHARACTERISTICS" section of the OPA832IDR datasheet and must be used with its 3.9mA typical quiescent current to calculate junction temperature rise in compact PCB layouts.
OPA832IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Voltage Feedback
- Output Type:
- Rail-to-Rail
- Number of Circuits:
- 1
- -3db Bandwidth:
- 99 MHz
- Slew Rate:
- 350V/µs
- Current - Supply:
- 4.25 mA
- Current - Output / Channel:
- 85 mA
- Voltage - Supply, Single/Dual (±):
- 2.8V ~ 11V, ±1.4V ~ 5.5V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
OPA832IDR FAQ
1.How can I place an order for OPA832IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA832IDR 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 OPA832IDR reliable?
The price and inventory of OPA832IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA832IDR is usually 5 days.
3.What payment methods are accepted for OPA832IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA832IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA832IDR?
OPA832IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA832IDR 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 OPA832IDR?
For technical support, including OPA832IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA832IDR requirements.
6.How does Aetrix verify that OPA832IDR is sourced from the original manufacturer or authorized distributors?
All OPA832IDR 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 OPA832IDR meets industry standards.
7.What is the process for return or replacement of OPA832IDR?
All OPA832IDR units undergo pre-shipment inspection (PSI). If there is an issue with OPA832IDR, 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 OPA832IDR part is unused and in its original packaging.
Return procedure for OPA832IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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