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Analog Devices Inc. LT1210XFE#PBF
- Part No.:
- LT1210XFE#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Datasheet:
-
LT1210XFE#PBF.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,920
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Product details
Overview
LT1210XFE#PBF from Analog Devices is a high-temperature current feedback amplifier optimized for ±5V to ±15V operation, delivering 1.0A minimum output drive, 35MHz bandwidth at AV = 2 with 10Ω load, and 900V/µs slew rate. It features shutdown mode (IS < 200µA), stable operation with up to 10,000pF capacitive loads, and is deployed in down-hole drilling instrumentation and avionics signal conditioning.
For engineers reviewing the LT1210XFE#PBF datasheet, LT1210XFE#PBF pinout, LT1210XFE#PBF application, or LT1210XFE#PBF equivalent, key selection criteria include guaranteed 175°C operation, output current capability under thermal stress, compensation network control via COMP pin, and TSSOP16-E package thermal performance with exposed V+ pad.
Technical Context
The LT1210XFE#PBF uses a current feedback architecture with transresistance gain stage, enabling high slew rate independent of closed-loop gain configuration-unlike voltage-feedback op amps. Its input stage presents 10MΩ impedance and ±12V common-mode range on ±15V supplies, while the output stage delivers ±10V swing into 10Ω with 1.0A minimum sourcing/sinking capability across –40°C to 175°C.
Stability is maintained via optional external 0.01µF capacitor between OUT and COMP pins for capacitive loads up to 10,000pF; without compensation, bandwidth drops from 35MHz to 26MHz into 10Ω. Shutdown control is referenced to V+, requiring open-drain logic or resistor-to-ground biasing to adjust quiescent current from 35mA down to 9mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temperature | –40°C to 175°C - qualified for extreme environments including down-hole drilling and avionics. |
| Output Drive Current | ≥1.0A - sustains full-swing output into low-Z loads (e.g., 10Ω cables) without clipping at 2MHz. |
| Small-Signal Bandwidth | 35MHz at AV = 2, RL = 10Ω - enables high-fidelity video and ADSL driver applications. |
| Slew Rate | 900V/µs at AV = 2, RL = 10Ω - supports fast transient response in test equipment amplifiers. |
| Supply Range | ±5V to ±15V - accommodates industrial and aerospace power rails with ±18V absolute max rating. |
| Shutdown Current | <200µA - reduces system-level power dissipation during idle periods in battery-backed modules. |
| Capacitive Load Stability | Stable with CL = 10,000pF - eliminates need for external isolation resistors when driving long coaxial lines. |
Pinout & Package
LT1210XFE#PBF is housed in a 16-lead thermally enhanced plastic TSSOP (FE package) with exposed pad (Pin 17) electrically connected to V+. The package requires soldering the exposed pad to a large copper plane for thermal management (θJC(PAD) = 10°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ (Pins 1, 8, 9, 16, 17) | Positive supply rail connection | Pins 1/8/9/16 are internal V+ connections; Pin 17 is exposed thermal pad tied to V+ - must be soldered to PCB copper for heat dissipation. |
| OUT (Pin 3) | Amplifier output terminal | Capable of sourcing/sinking ≥1.0A continuously; drives low-impedance loads (e.g., 10Ω cables) with minimal distortion. |
| –IN (Pin 6) | Inverting input node | Current feedback input - requires resistive feedback path; sensitive to stray capacitance; valid CM range ±12V on ±15V supplies. |
| +IN (Pin 11) | Non-inverting input node | High-impedance (10MΩ) input; differential swing limited to ±6V by internal ESD clamp - restricts input to ±5V during shutdown. |
| SHUTDOWN (Pin 12) | Quiescent current control input | Referenced to V+; sinking current sets supply current (e.g., 115µA → ~9mA IS); open or pulled to V+ disables amplifier. |
| COMP (Pin 13) | Capacitive load compensation node | Connecting 0.01µF from OUT to COMP flattens response with CL ≤ 1000pF; leaving open preserves full 35MHz bandwidth into resistive loads. |
| V– (Pin 14) | Negative supply rail connection | Supports asymmetric supplies; offset voltage shifts ~500µV/V of supply mismatch - critical in precision biasing. |
| NC (Pins 2, 4, 5, 7, 10, 15) | No internal connection | Floating pins - must remain unconnected; no internal circuitry or parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| High-temperature qualification | Rated for continuous operation from –40°C to 175°C - validated per AEC-Q200-relevant stress profiles for down-hole and avionics use. |
| Adjustable quiescent current | Settable from 35mA down to 9mA using external resistor on SHUTDOWN pin - enables dynamic power scaling in embedded systems. |
| Capacitive load compensation | Optional 0.01µF capacitor between OUT and COMP pins suppresses peaking with CL up to 10,000pF - eliminates need for series isolation. |
| Robust short-circuit protection | Thermally limited output short-circuit duration - survives sustained shorts to ground on ±15V supplies with proper heatsinking. |
| Wide supply flexibility | Operates from ±5V to ±15V (10V–30V total) - supports legacy industrial rails and modern high-voltage analog front-ends. |
Applications
| Down-Hole Drilling Instrumentation | Avionics Signal Conditioning |
|---|---|
Use Scenario: Amplifying sensor signals (e.g., piezoelectric accelerometers) in oil/gas wellbores where ambient temperature exceeds 150°C. IC Role / Device Role / Timing Role: High-current buffer and driver stage ensuring signal integrity over long twisted-pair cabling in harsh thermal environments. Use Value: Guaranteed 1.0A output drive maintains SNR despite cable capacitance and temperature-induced parameter drift. |
Use Scenario: Driving analog video or ARINC 429-compatible waveforms in flight control computers operating at extended temperature ranges. IC Role / Device Role / Timing Role: Precision current-feedback amplifier providing low-distortion, wideband signal gain with deterministic phase response. Use Value: 35MHz bandwidth and 900V/µs slew rate support NTSC-compliant video timing with <0.3% differential gain error. |
| Heavy Industrial Motor Control | Test Equipment Amplifiers |
Use Scenario: Isolating and amplifying current-sense signals in variable-frequency drives exposed to ambient temperatures up to 125°C. IC Role / Device Role / Timing Role: High-CMRR (≥55dB) buffer rejecting noise from PWM switching transients in motor phases. Use Value: Stable operation with ±12V input common-mode range on ±15V supplies ensures accurate sensing under bus voltage ripple. |
Use Scenario: Output stage in automated test equipment generating high-fidelity sine, square, and pulse waveforms up to 20MHz. IC Role / Device Role / Timing Role: Wideband, high-slew-rate amplifier delivering 20VP-P into 50Ω loads with minimal harmonic distortion. Use Value: THD < –70dB at 1MHz enables precise characterization of DUT frequency response without amplifier-induced artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1228CS8#PBF | Lower temperature grade (–40°C to 85°C); 600V/µs slew rate; 60MHz bandwidth at AV = 2, RL = 100Ω. | Not rated for >85°C operation - unsuitable for down-hole or avionics; better suited for lab-grade test equipment. | Select only if ambient temperature remains below 85°C and bandwidth >35MHz is required with higher-Z loads. |
| ADA4870ARZ | Higher output current (1.2A), wider supply (±4.5V to ±20V), but rated only to 125°C; no integrated shutdown function. | Lacks shutdown mode and high-temp qualification - requires external enable logic and thermal derating above 125°C. | Choose when peak output current >1.0A is mandatory and system thermal management ensures TJ ≤ 125°C. |
Compared with LT1228CS8#PBF and ADA4870ARZ, the LT1210XFE#PBF uniquely combines 175°C operation, integrated shutdown, and 10,000pF capacitive load stability - making it the sole option for mission-critical high-temperature cable drivers where reliability under thermal stress is non-negotiable.
Availability
LT1210XFE#PBF is available at Aetrix Electronics and suitable for down-hole drilling instrumentation, avionics signal conditioning, and heavy industrial motor control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT1210XFE#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 (now part of Analog Devices, Inc. following merger with Linear Technology) designs high-performance analog, mixed-signal, and RF ICs for demanding industrial, aerospace, and instrumentation applications.
The LT1210XFE#PBF belongs to Linear Technology's high-temperature amplifier product line, engineered specifically for signal integrity in extreme environments - including oilfield, aerospace, and power generation systems where conventional op amps fail.
FAQ
What is the maximum capacitive load the LT1210XFE#PBF can drive while maintaining stability?
The LT1210XFE#PBF is specified as stable with up to 10,000pF capacitive load when the optional compensation network is enabled (0.01µF capacitor between OUT and COMP pins). Without compensation, stability degrades significantly beyond ~100pF. For optimal flatness with large CL, use the recommended feedback resistor values from the "Bandwidth and Feedback Resistance vs Capacitive Load" curves in the datasheet. This capability makes the LT1210XFE#PBF ideal for driving long coaxial cables in test and instrumentation systems.
How does the shutdown feature of the LT1210XFE#PBF work, and what is its impact on supply current?
The LT1210XFE#PBF shutdown pin (Pin 12) is referenced to V+, so pulling it to V+ or leaving it open places the device in shutdown mode with supply current <200µA. Connecting a resistor from SHUTDOWN to ground sets quiescent current proportional to the sinked current (e.g., ~115µA → 9mA IS). This allows dynamic power scaling in battery-powered or thermally constrained systems. During shutdown, the output becomes high-impedance (~70pF), preserving signal integrity on shared buses.
Can the LT1210XFE#PBF operate with asymmetric supply voltages, and how does that affect performance?
Yes, the LT1210XFE#PBF supports asymmetric supplies (e.g., +15V/–5V) within the ±5V to ±15V range per rail and 10V–30V total span. However, supply mismatch causes offset voltage shift (~500µV/V) and inverting input bias current change (up to 5µA/V). These effects must be calibrated out in precision applications. For best DC accuracy, symmetric supplies are recommended - but the device remains fully functional and stable with mismatched rails in AC-coupled or gain-setting configurations.
What thermal design considerations are critical for the LT1210XFE#PBF in a TSSOP16-E package?
The LT1210XFE#PBF's exposed V+ pad (Pin 17) is the primary thermal path - it must be soldered to a large copper plane with ≥8 thermal vias (10mil diameter) connected to internal or backside ground/power planes. On a 4-layer board, this achieves θJA ≈ 38°C/W in still air. Without proper thermal land, θJA can exceed 115°C/W, causing junction temperature to exceed 200°C at 1.05W dissipation. Always verify TJ = TA + PD × θJA stays below 200°C under worst-case load and ambient conditions.
Is the LT1210XFE#PBF pin-compatible with other members of the LT1210 family, such as LT1210CS8#PBF?
No - the LT1210XFE#PBF uses a 16-lead TSSOP package with multiple V+ pins and an exposed pad, whereas LT1210CS8#PBF is an 8-lead SOIC with standard pinout and no thermal pad. The FE package has different pin assignments (e.g., V+, NC, COMP, SHUTDOWN) not present in the SOIC variant. Board redesign is required to migrate from SOIC to TSSOP16-E. Always consult the respective package drawings and pin configuration tables before layout.
LT1210XFE#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- 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:
- 35mA
- Current - Output / Channel:
- 2 A
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP-EP
LT1210XFE#PBF FAQ
1.How can I place an order for LT1210XFE#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1210XFE#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 LT1210XFE#PBF reliable?
The price and inventory of LT1210XFE#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1210XFE#PBF is usually 5 days.
3.What payment methods are accepted for LT1210XFE#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1210XFE#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1210XFE#PBF?
LT1210XFE#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1210XFE#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 LT1210XFE#PBF?
For technical support, including LT1210XFE#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1210XFE#PBF requirements.
6.How does Aetrix verify that LT1210XFE#PBF is sourced from the original manufacturer or authorized distributors?
All LT1210XFE#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 LT1210XFE#PBF meets industry standards.
7.What is the process for return or replacement of LT1210XFE#PBF?
All LT1210XFE#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1210XFE#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 LT1210XFE#PBF part is unused and in its original packaging.
Return procedure for LT1210XFE#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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