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Analog Devices Inc. LT1210IR#PBF
- Part No.:
- LT1210IR#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- TO-263-8, D2PAK (7 Leads + Tab), TO-263CA
- Datasheet:
-
LT1210IR#PBF.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT 7DDPAK
- Quantity:
- Payment:
- Shipping:
Inventory:175
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Product details
Overview
LT1210IR#PBF from Analog Devices is a current-feedback operational amplifier optimized for high-output-current, wide-bandwidth applications. It delivers 1.1A minimum output drive, 35MHz bandwidth at AV = 2 with 10Ω load, and 900V/µs slew rate under ±15V supply - enabling robust cable driving, video buffering, and ADSL line driver functions in industrial test equipment and communications infrastructure.
For engineers reviewing the LT1210IR#PBF datasheet, LT1210IR#PBF pinout, LT1210IR#PBF application, or LT1210IR#PBF equivalent, this page provides verified package mapping (7-lead DDPAK), thermal performance data (θJA = 25°C/W with 1000 mm² copper), shutdown behavior (IS < 200µA), capacitive-load stability (up to 10,000pF), and validated alternative options for ±15V high-current amplifier replacement.
Technical Context
The LT1210IR#PBF uses a current-feedback architecture with separate input and output stages, enabling high slew rate independent of closed-loop gain configuration only when input-stage slew is not limiting. Its transresistance gain (ROL = 75–260 kΩ) and low input bias current (±10 µA max) support precision buffer and driver roles where fast settling into reactive loads is critical.
It integrates internal compensation control via the COMP pin, allowing flat frequency response with up to 1000pF capacitive loads when bypassed with 0.01µF; without compensation, bandwidth drops to 26MHz on 10Ω resistive load. Shutdown is implemented by pulling the SHUTDOWN pin to V+, reducing supply current to <200µA while maintaining high-impedance output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 35MHz at AV = 2, RL = 10Ω - supports NTSC/PAL video signal amplification without phase distortion. |
| Slew Rate | 900V/µs at AV = 2, RL = 10Ω - enables clean 20VP-P output at 1MHz without slewing artifacts. |
| Output Drive | 1.1A min, ±15V supply - drives 10Ω loads directly, eliminating need for external boost stages in power buffers. |
| Input Impedance | 10MΩ - minimizes loading on high-impedance sensor or DAC outputs in precision signal chains. |
| Supply Range | ±5V to ±15V - operates across dual-rail industrial and telecom voltage domains without redesign. |
| Shutdown Current | <200µA - reduces system standby power in battery-backed or energy-sensitive instrumentation. |
| Capacitive Load Stability | Stable with CL = 10,000pF - eliminates external isolation resistors when driving long coaxial cables or LCD panel traces. |
Pinout & Package
LT1210IR#PBF is housed in a 7-lead plastic DDPAK (R package) with exposed thermal tab connected to V+. This surface-mount package features θJA = 25°C/W with 1000 mm² copper area, optimized for ±15V operation and high-power dissipation in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT | Amplifier output | High-current source/sink node; connects directly to load or cable; requires local 4.7µF tantalum + 100nF ceramic bypass. |
| V– | Negative supply rail | Reference for internal biasing; must be decoupled independently from V+ to prevent ground bounce. |
| COMP | Compensation network enable | Connect 0.01µF to OUT to stabilize >100pF capacitive loads; leave open for purely resistive applications. |
| V+ | Positive supply rail | Power input and thermal tab connection point; tab must be soldered to ≥2500 mm² copper for full thermal rating. |
| SHUTDOWN | Enable/disable control | Pull to V+ to enter shutdown (IS < 200µA); tie to GND or V– for normal operation; 1µs switching time. |
| +IN | Noninverting input | High-Z node (10MΩ); differential swing limited to ±5V during shutdown due to internal ESD clamp. |
| –IN | Inverting input | Current-input node for CFB topology; requires resistive feedback (no capacitive parasitics) for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable quiescent current | Set via external resistor from SHUTDOWN to GND; 9mA achievable with 82kΩ, enabling bandwidth/power trade-off. |
| Thermal shutdown protection | Activates at TJ = 150°C; cycles slowly (10ms–seconds) to prevent permanent damage during overload or poor heatsinking. |
| Enhanced SO-16 variant for ±5V | Not applicable to LT1210IR#PBF - this DDPAK variant is rated for ±15V; SO-16 (e.g., LT1210CS#PBF) is restricted to ±5V per datasheet Note 5. |
| Low THD at video frequencies | –70dB at 1MHz (VS = ±15V, VOUT = 20VP-P, RL = 10Ω) - meets broadcast-grade linearity requirements. |
| Differential gain/phase | 0.3% / 0.1° at NTSC composite video - preserves color fidelity in analog video distribution systems. |
Applications
| Cable Drivers | Test Equipment Amplifiers |
|---|---|
Use Scenario: Driving 75Ω coaxial cables over distances up to 100m in broadcast routing switchers. IC Role / Device Role / Timing Role: High-current buffer with low output impedance and flat 35MHz response ensures minimal signal attenuation and group delay variation. Use Value: Eliminates need for discrete emitter-follower stages; maintains <0.3% differential gain error across NTSC spectrum. | Use Scenario: Output stage of automated test equipment (ATE) sourcing 20VP-P, 1MHz sine waves into 10Ω DUT loads. IC Role / Device Role / Timing Role: Precision high-slew amplifier delivering full-scale output without clipping or harmonic distortion. Use Value: Achieves –70dB THD at 1MHz, enabling accurate characterization of power devices and RF components. |
| Video Amplifiers | ADSL Line Drivers |
Use Scenario: RGB or YPbPr video distribution in medical imaging displays requiring DC-coupled, low-noise amplification. IC Role / Device Role / Timing Role: Unity-gain stable buffer with 10MΩ input impedance isolates DAC outputs from cable capacitance. Use Value: Supports 1080p60 timing with <0.1° differential phase shift, preserving edge sharpness and color registration. | Use Scenario: Central office DSLAM line card driving twisted-pair subscriber loops with 2B1Q or CAP modulation. IC Role / Device Role / Timing Role: High-output-current driver meeting ITU-T G.992.1 spectral mask requirements up to 1.1MHz. Use Value: Delivers 1.1A peak current into 100Ω loop + 10nF termination, enabling >30dB SNR margin at 3km reach. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1211IR#PBF | Same pinout, 1.5A output drive, 45MHz bandwidth, higher supply current (65mA typ) | Better suited for >1.1A peak loads or >35MHz small-signal bandwidth needs | Select when higher output current or bandwidth is required; verify thermal margin with increased PD. |
| THS3091DGN | Single-channel, 2300V/µs slew, 220MHz BW, ±15V supply, 8-pin MSOP package | Higher speed but lower output current (225mA), no shutdown or COMP pin | Choose for ultra-high-speed, low-capacitance loads where 1.1A drive is unnecessary. |
Compared with LT1210IR#PBF, LT1211IR#PBF offers higher drive and bandwidth at increased quiescent power, while THS3091DGN trades output current for extreme slew rate and bandwidth in a smaller package - making LT1210IR#PBF optimal for balanced high-current, high-fidelity, thermally constrained applications.
Availability
LT1210IR#PBF is available at Aetrix Electronics and suitable for cable drivers, test equipment amplifiers, video distribution systems, and ADSL line cards requiring stable component supply across extended temperature ranges (–40°C to 85°C).
Supply support for LT1210IR#PBF 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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LT1210 product line was designed specifically for high-output-current, wide-bandwidth applications demanding both precision and ruggedness - including video, test instrumentation, and broadband communications infrastructure.
FAQ
What is the maximum capacitive load the LT1210IR#PBF can drive stably?
The LT1210IR#PBF is specified stable with up to 10,000pF capacitive load when operating in standard configuration. For optimal flatness (<1dB peaking), use the COMP pin with a 0.01µF capacitor to OUT - especially effective for 0–1000pF loads. Without compensation, stability degrades above ~200pF, causing 6dB peaking at 40MHz. Always verify layout parasitics, as stray capacitance at the –IN node also affects transient response.
Does the LT1210IR#PBF require external compensation for resistive loads?
No - the LT1210IR#PBF does not require external compensation for purely resistive loads. In fact, connecting the COMP pin (e.g., with 0.01µF to OUT) reduces bandwidth from 35MHz to 26MHz on a 10Ω load, per datasheet Figure 1. The COMP pin should be left open for resistive applications to preserve full bandwidth and slew rate. Compensation is only recommended when driving capacitive loads exceeding ~100pF.
What is the thermal resistance (θJA) of the LT1210IR#PBF package?
The LT1210IR#PBF uses a 7-lead DDPAK (R package) with θJA = 25°C/W when mounted on a 3/32" FR-4 board with 2 oz copper and 1000 mm² topside copper area. With 2500 mm² copper, θJA improves to 25°C/W; with only 125 mm², it rises to 35°C/W. Junction temperature must stay ≤150°C - for example, at 70°C ambient and 0.56W dissipation, TJ = 85°C with 1000 mm² copper, well within safe limits.
Can the LT1210IR#PBF operate from a single +10V supply?
Yes - the LT1210IR#PBF supports single-supply operation from +10V (with GND as negative rail), though its specified performance is guaranteed for ±5V to ±15V split supplies. At +10V, input common-mode range is 0V to +7V, output swing is ±2.5V into 10Ω (i.e., 0V to +5V), and supply current remains ~35–50mA. For rail-to-rail input/output, additional level-shifting or biasing is required, as the device is not rail-to-rail.
How does shutdown affect the output impedance of the LT1210IR#PBF?
In shutdown mode (SHUTDOWN pin pulled to V+), the LT1210IR#PBF output transitions to high-impedance state with leakage <10µA and effective capacitance of ~70pF, per datasheet Absolute Maximum Ratings and Applications Information. This allows safe multiplexing or hot-swapping without loading downstream circuits. Recovery time from shutdown is ~1µs, and output resumes normal operation without latch-up or oscillation when SHUTDOWN is returned to GND or V–.
LT1210IR#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- TO-263-8, D2PAK (7 Leads + Tab), TO-263CA
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 900V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 35 MHz
- Current - Input Bias:
- -
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 50mA
- Current - Output / Channel:
- 2 A
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DDPAK-7
LT1210IR#PBF FAQ
1.How can I place an order for LT1210IR#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1210IR#PBF 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 LT1210IR#PBF reliable?
The price and inventory of LT1210IR#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1210IR#PBF is usually 5 days.
3.What payment methods are accepted for LT1210IR#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1210IR#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1210IR#PBF?
LT1210IR#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1210IR#PBF 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 LT1210IR#PBF?
For technical support, including LT1210IR#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1210IR#PBF requirements.
6.How does Aetrix verify that LT1210IR#PBF is sourced from the original manufacturer or authorized distributors?
All LT1210IR#PBF 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 LT1210IR#PBF meets industry standards.
7.What is the process for return or replacement of LT1210IR#PBF?
All LT1210IR#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1210IR#PBF, 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 LT1210IR#PBF part is unused and in its original packaging.
Return procedure for LT1210IR#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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