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Analog Devices Inc. LT1210CR#TRPBF
- Part No.:
- LT1210CR#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- TO-263-8, D2PAK (7 Leads + Tab), TO-263CA
- Datasheet:
-
LT1210CR#TRPBF.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT 7DDPAK
- Quantity:
- Payment:
- Shipping:
Inventory:1,027
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Product details
Overview
LT1210CR#TRPBF 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 - enabling robust video, cable, and test equipment amplification under ±15V operation in the 7-lead DD package.
For engineers reviewing the LT1210CR#TRPBF datasheet, LT1210CR#TRPBF pinout, LT1210CR#TRPBF application, or LT1210CR#TRPBF equivalent, key selection criteria include its stable operation with 10,000pF capacitive loads, shutdown mode (IS < 200µA), adjustable supply current via external resistor, ±5V to ±15V supply range, and thermal shutdown protection.
Technical Context
The LT1210CR#TRPBF uses a current-feedback architecture with separate high-impedance input stage (10MΩ) and low-impedance output stage, enabling bandwidth independence from closed-loop gain - unlike voltage-feedback op amps. Its transresistance gain (ROL = 75–260kΩ) and fast input stage slew rate support high-speed signal conditioning in demanding analog paths.
It integrates internal compensation control via the COMP pin for capacitive-load stabilization, and a dedicated SHUTDOWN pin referenced to V+ that controls bias current - allowing quiescent current reduction to ~9mA (via external RSD) or full shutdown (<200µA). Thermal shutdown activates at TJ = 150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 35MHz at AV = 2, RL = 10Ω - supports high-fidelity NTSC video and ADSL line driving without gain-dependent bandwidth roll-off. |
| Slew Rate | 900V/µs at AV = 2, RL = 10Ω - enables clean 20VP-P output at 1MHz with minimal distortion in buffer or driver configurations. |
| Output Drive | 1.1A min, ±15V supply - drives low-Z loads (e.g., 10Ω cables, twisted-pair lines) without external boost stages. |
| Input Impedance | 10MΩ - minimizes loading on high-impedance sources such as DAC outputs or sensor interfaces. |
| Supply Range | ±5V to ±15V - supports both low-voltage portable systems and industrial ±15V signal chains. |
| Capacitive Load Stability | Stable with CL = 10,000pF - eliminates need for external isolation resistors when driving long traces or LCD panel capacitance. |
| Shutdown Current | <200µA - reduces system power by >99% during idle periods in battery-powered or energy-conscious designs. |
Pinout & Package
The LT1210CR#TRPBF is housed in a 7-lead plastic DDPAK (R package) with exposed tab thermally connected to V+. Pin functions are validated per Analog Devices Rev C datasheet (p.2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT | Amplifier output | Low-impedance current-source/sink node capable of ±1.1A; connects directly to load or cable. |
| V– | Negative supply rail | Power return path; tab is internally tied to V+, requiring PCB thermal pad connection to V– plane or isolated copper. |
| COMP | Compensation network enable | Connect to OUT via 0.01µF capacitor to stabilize capacitive loads; leave open for purely resistive loads. |
| V+ | Positive supply rail | Primary power input; tab is electrically connected to V+, enabling direct thermal coupling to V+ plane. |
| SHUTDOWN | Bias current control | Referenced to V+; pull to V+ for shutdown (<200µA IS); connect to ground or V– for normal operation. |
| +IN | Noninverting input | High-impedance (10MΩ) node; differential swing limited to ±6V by internal ESD clamp. |
| –IN | Inverting input | Current-input node for feedback; requires resistive feedback path (no capacitive bypass) to ensure stability. |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables constant 35MHz bandwidth across gains - critical for variable-gain video distribution amplifiers. |
| Adjustable supply current | Set via single external resistor (e.g., 82kΩ → 9mA IS) - trades bandwidth for power in battery-constrained test gear. |
| Thermal shutdown protection | Activates at TJ = 150°C and cycles safely - prevents permanent damage during sustained overload or poor heatsinking. |
| Enhanced thermal resistance | θJA = 25°C/W (2500 mm² copper) - superior to SO-16 (40°C/W), enabling higher continuous power in compact layouts. |
| Robust short-circuit tolerance | Thermally limited output short duration - survives accidental 10Ω load miswiring in production test fixtures. |
Applications
| Video Distribution Amplifier | Twisted-Pair Line Driver |
|---|---|
Use Scenario: Distributing composite NTSC video signals to multiple monitors or recording devices while preserving sync tip integrity and minimizing differential gain/phase error. IC Role / Device Role / Timing Role: High-current unity-gain buffer with 0.3% differential gain and 0.1° differential phase error at ±15V. Use Value: Maintains broadcast-grade video fidelity over 75Ω coaxial runs up to 100m without equalization or repeaters. | Use Scenario: Driving balanced 100Ω twisted-pair cables in industrial fieldbus or data acquisition systems with noise immunity requirements. IC Role / Device Role / Timing Role: Single-ended-to-differential driver with 1.1A output capability and 900V/µs slew rate. Use Value: Delivers clean 20VP-P differential signals at 1MHz, rejecting common-mode noise without external transformers. |
| ADSL Line Driver | Test Equipment Output Stage |
Use Scenario: Transmitting high-frequency DSL upstream signals (up to 2.2MHz) into telephone line impedance with minimal harmonic distortion. IC Role / Device Role / Timing Role: Wideband current-feedback amplifier operating at AV = 2, RL = 10Ω with THD < –70dB at 1MHz. Use Value: Meets ITU-T G.992.1 spectral mask compliance without post-filtering, reducing BOM count. | Use Scenario: Generating high-slew-rate, high-current stimulus waveforms (square, pulse, ramp) in automated test equipment (ATE) channel cards. IC Role / Device Role / Timing Role: Output driver stage delivering 20VP-P into 50Ω loads with sub-10ns edge fidelity. Use Value: Eliminates need for discrete MOSFET output stages, simplifying layout and improving channel-to-channel skew matching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-output-current amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1211CR#TRPBF | Same R-package DDPAK, but includes internal 100Ω series output resistor for improved capacitive-load stability and reduced peaking. | Better suited for driving >1nF loads without external compensation; slightly lower bandwidth (30MHz vs 35MHz) at AV=2. | Select LT1211CR#TRPBF when driving LCD panels or long PCB traces where output isolation is preferred over maximum bandwidth. |
| THS3091DGNR | Texas Instruments current-feedback amplifier in 8-pin MSOP; 2100V/µs slew rate, 225MHz bandwidth, but only 220mA output drive and no shutdown pin. | Higher speed but lower current; requires external shutdown circuitry and heatsinking for >100mA continuous loads. | Choose THS3091DGNR for ultra-high-speed (>100MHz) low-current applications where LT1210CR#TRPBF's 1.1A drive is unnecessary. |
Compared with LT1210CR#TRPBF, LT1211CR#TRPBF trades 5MHz bandwidth for built-in output isolation, while THS3091DGNR offers 6× higher slew rate but only 20% of the output current - making LT1210CR#TRPBF optimal for high-power, medium-bandwidth analog drivers where thermal efficiency and integrated shutdown matter.
Availability
LT1210CR#TRPBF is available at Aetrix Electronics and suitable for video distribution, twisted-pair communication, and test equipment applications requiring stable component supply, extended temperature operation (0°C to 70°C), and RoHS-compliant packaging.
Supply support for LT1210CR#TRPBF 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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, communications, and industrial markets.
The LT1210 product line was designed specifically for high-current, wideband analog signal conditioning - targeting video, communications infrastructure, and automated test equipment where traditional op amps fail due to output current or capacitive-load limitations.
FAQ
What is the maximum capacitive load the LT1210CR#TRPBF can drive stably?
The LT1210CR#TRPBF is explicitly characterized for stable operation with up to 10,000pF capacitive load when the COMP pin is connected to OUT via a 0.01µF capacitor. This configuration suppresses peaking and maintains ≤1dB flatness to 40MHz with appropriate feedback resistor selection. Without COMP, stability degrades rapidly beyond ~200pF.
Does the LT1210CR#TRPBF require external compensation for resistive loads?
No - the LT1210CR#TRPBF should have the COMP pin left open for purely resistive loads (e.g., 10Ω, 50Ω, 75Ω). Connecting COMP to OUT in this case reduces bandwidth (e.g., from 35MHz to 26MHz at AV = 2, RL = 10Ω) without benefit. The COMP network is optional and intended solely for capacitive-load stabilization.
How does shutdown functionality work on the LT1210CR#TRPBF?
The LT1210CR#TRPBF's SHUTDOWN pin is referenced to V+. To activate shutdown, drive SHUTDOWN to V+ (or leave open); this reduces supply current to <200µA and places the output in high-impedance state (~70pF). For normal operation, connect SHUTDOWN to ground or V–. A 74C906 open-drain buffer is recommended for clean 5V logic interfacing.
Can the LT1210CR#TRPBF operate from a single +10V supply?
Yes - the LT1210CR#TRPBF supports single-supply operation down to +10V total (e.g., V+ = +10V, V– = 0V), though input common-mode range and output swing are reduced versus split supplies. At +10V, max output swing is ±2.5V into 10Ω; input common-mode range is 0V to +3.5V. Performance specs assume ±5V to ±15V, so derating applies.
What thermal considerations apply to the LT1210CR#TRPBF in DDPAK package?
The LT1210CR#TRPBF in 7-lead DDPAK has θJA = 25°C/W with 2500mm² copper on top layer (per datasheet Table 1). Its exposed tab is electrically connected to V+, so thermal design must tie the tab pad to a V+ plane or isolated thermal copper. Avoid connecting tab to ground - doing so creates a short. Junction temperature must stay ≤150°C; thermal shutdown engages if exceeded.
LT1210CR#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- TO-263-8, D2PAK (7 Leads + Tab), TO-263CA
- Packaging:
- Tape & Reel (TR)
- 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:
- 35mA
- Current - Output / Channel:
- 2 A
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DDPAK-7
LT1210CR#TRPBF FAQ
1.How can I place an order for LT1210CR#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1210CR#TRPBF 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 LT1210CR#TRPBF reliable?
The price and inventory of LT1210CR#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1210CR#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1210CR#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1210CR#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1210CR#TRPBF?
LT1210CR#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1210CR#TRPBF 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 LT1210CR#TRPBF?
For technical support, including LT1210CR#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1210CR#TRPBF requirements.
6.How does Aetrix verify that LT1210CR#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1210CR#TRPBF 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 LT1210CR#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1210CR#TRPBF?
All LT1210CR#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1210CR#TRPBF, 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 LT1210CR#TRPBF part is unused and in its original packaging.
Return procedure for LT1210CR#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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