My Inquiry
My Account
Analog Devices Inc. LT1816CDD#PBF
- Part No.:
- LT1816CDD#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LT1816CDD#PBF.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,836
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT1816CDD#PBF from Analog Devices (formerly Linear Technology) is a dual-channel, high-speed, programmable-current operational amplifier in an 8-lead 3mm × 3mm DFN package. It delivers 220MHz gain-bandwidth, 1500V/µs slew rate, and 6.5mA per amplifier supply current at ±5V, enabling precision video buffering and active filter design in space-constrained industrial instrumentation.
For engineers reviewing the LT1816CDD#PBF datasheet, LT1816CDD#PBF pinout, LT1816CDD#PBF application, or LT1816CDD#PBF equivalent, key selection criteria include its dual-channel DFN layout, ISET-programmable current mode, ±3.5V input CMR at ±5V supplies, and guaranteed 0°C to 70°C operation with 1.5mV max VOS.
Technical Context
The LT1816CDD#PBF uses a voltage-feedback topology with current-feedback slewing characteristics, enabling both high DC accuracy and wideband transient response. Its input stage combines complementary NPN/PNP emitter followers for bias current cancellation, while the ISET pin allows dynamic adjustment of supply current and bandwidth via external resistor programming.
It operates from ±1.25V to ±5.5V dual supplies or 2.5V to 5V single supply, supports rail-to-rail output swing into 100Ω loads (±3.5V), and maintains unity-gain stability without compensation. Channel separation exceeds 80dB, supporting dual-path signal conditioning in communication receivers and data acquisition systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 220MHz - enables stable closed-loop operation up to 100MHz in moderate-gain configurations |
| Slew Rate | 1500V/µs - supports clean 5MHz, 2VP-P output into 100Ω with –70dB THD |
| Supply Current per Amp | 6.5mA - programmable down to 1mA for low-power mode, reducing thermal load in compact layouts |
| Input Offset Voltage | 1.5mV max - ensures <100µV error in 100Ω source-balanced sensor interfaces |
| Input Noise Density | 6nV/√Hz - preserves SNR in low-level signal amplification stages before ADCs |
| Output Drive | ±50mA min - drives 100Ω video loads or 500Ω precision buffers without external boost |
| Operating Temp Range | 0°C to 70°C - qualified for commercial-grade embedded systems and test equipment |
Pinout & Package
LT1816CDD#PBF is housed in an 8-lead (3mm × 3mm) plastic DFN package with underside metal internally connected to V–. Thermal resistance θJA = 160°C/W with standard PCB layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT A | Amplifier A output | Capable of ±3.5V swing into 100Ω; requires local 0.01µF bypass to V– |
| 2: –IN A | Inverting input A | High-impedance node; sensitive to trace length-keep short and symmetric with +IN A |
| 3: +IN A | Non-inverting input A | Paired with –IN A for balanced source impedance to minimize offset contribution |
| 4: V– | Negative supply | Internally connected to underside metal pad; must be low-impedance plane for thermal and noise control |
| 5: V+ | Positive supply | Accepts ±1.25V to ±5.5V; bypass with 0.01µF ceramic directly at pin |
| 6: OUT B | Amplifier B output | Independent channel; same drive capability and settling time (15ns to 0.1%) as OUT A |
| 7: –IN B | Inverting input B | Electrically isolated from –IN A; supports dual-path signal processing without crosstalk |
| 8: +IN B | Non-inverting input B | Matches +IN A performance; enables matched dual-channel instrumentation front-ends |
Key Features
| Feature | Design Value |
|---|---|
| Programmable supply current | ISET pin adjusts per-amplifier current from 1mA to 6.5mA, enabling dynamic power/speed trade-off in battery-aware designs |
| Unity-gain stable | Operates without external compensation in gain ≥1 configurations, simplifying layout for fast-settling buffers |
| Low input offset drift | 10µV/°C max over temperature-reduces calibration burden in wide-temperature industrial sensors |
| High channel separation | 82dB min at 1MHz-enables simultaneous dual-channel sampling in data acquisition without inter-channel interference |
| Robust input protection | Withstands ±6V differential input transients without damage, eliminating need for external clamping diodes |
Applications
| Video Line Driver | Active Low-Pass Filter |
|---|---|
Use Scenario: Driving 75Ω coaxial video lines in broadcast equipment or medical imaging displays. IC Role / Device Role / Timing Role: Dual-channel buffer with 1500V/µs slew rate and –70dB THD at 5MHz to preserve luminance/chrominance integrity. Use Value: Eliminates external current-boost stages; full-swing ±3.5V output meets SMPTE/RS-170 amplitude requirements. | Use Scenario: Anti-aliasing and reconstruction filtering in 10–20MSPS data converters. IC Role / Device Role / Timing Role: High-GBW dual op-amp configured as 4th-order MFB or biquad topology with precise pole placement. Use Value: 220MHz GBW and low 6nV/√Hz noise maintain >80dB SFDR across filter passband. |
| Communication Receiver IF Stage | Industrial Sensor Signal Conditioning |
Use Scenario: Intermediate frequency amplification and automatic gain control (AGC) in narrowband RF receivers. IC Role / Device Role / Timing Role: Dual-channel variable-gain amplifier where one amp buffers reference voltage and the other processes IF signal. Use Value: 82dB channel separation prevents LO leakage coupling; programmable current reduces idle power in standby modes. | Use Scenario: Amplifying low-level bridge outputs (e.g., strain gauges, RTDs) in PLC analog input modules. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with matched dual channels for ratiometric sensing. Use Value: 1.5mV max VOS and 10µV/°C drift ensure ≤0.1% total error over 0–70°C without periodic recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-speed op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4897-2ARMZ | Lower 1nV/√Hz noise, 225MHz GBW, but no ISET programmability; fixed 3.7mA supply current | Better for ultra-low-noise photodiode preamps; unsuitable where dynamic power scaling is required | Select when noise dominates over power flexibility; verify layout compatibility with MSOP-8 footprint |
| LMH6629MA/NOPB | Higher 2.7mA supply current, 1.5GHz GBW, no programmable current; 100mA output drive | Targeted at RF/IF gain blocks requiring >500MHz bandwidth; over-specified for video or sensor apps | Choose only if >300MHz small-signal BW is mandatory; expect higher quiescent power and layout sensitivity |
Compared with ADA4897-2ARMZ and LMH6629MA/NOPB, the LT1816CDD#PBF uniquely balances programmable power, precision DC specs, and 220MHz bandwidth in a thermally efficient DFN-making it optimal for cost-sensitive, space-constrained dual-channel analog signal chains where adaptive speed/power is valuable.
Availability
LT1816CDD#PBF is available at Aetrix Electronics and suitable for video line drivers, active filters, and industrial sensor signal conditioning requiring stable component supply and lead-free compliance.
Supply support for LT1816CDD#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 acquired Linear Technology in 2017 and maintains its high-performance analog portfolio with rigorous characterization and long-term product support.
The LT1815/LT1816/LT1817 family was designed for high-fidelity, wideband signal conditioning in instrumentation, communications, and video systems-emphasizing speed, precision, and power adaptability in miniature packages.
FAQ
What is the maximum operating supply voltage for LT1816CDD#PBF?
The LT1816CDD#PBF has an absolute maximum total supply voltage (V+ to V–) of 12.6V. For reliable operation, it is specified across ±1.25V to ±5.5V dual supplies or 2.5V to 5V single supply. Exceeding ±5.5V risks permanent damage per Absolute Maximum Ratings. The LT1816CDD#PBF achieves optimal performance-including 220MHz GBW and 1500V/µs slew rate-at ±5V, and remains functional down to ±1.25V with reduced bandwidth and output swing.
Does LT1816CDD#PBF support single-supply operation?
Yes, the LT1816CDD#PBF supports true single-supply operation from 2.5V to 5V. With a 5V supply and output loaded to 2.5V, it delivers 1V to 4V output swing into 100Ω. Input common-mode range extends from 0.9V to 4.1V (min/max, –40°C to 85°C), allowing direct interfacing with 3.3V logic and ADC references. The LT1816CDD#PBF maintains 1.5mV max input offset and 220MHz GBW under these conditions, making it suitable for portable and industrial single-rail systems.
How does the ISET pin function on LT1816CDD#PBF?
The ISET pin on LT1816CDD#PBF enables programmable supply current per amplifier from 1mA to 6.5mA. Connecting ISET to V– via a resistor (0Ω to 40kΩ) scales current linearly: 0Ω yields full speed (6.5mA, 220MHz), while 40kΩ reduces current to ~1mA and GBW to ~50MHz. This feature allows dynamic power optimization in battery-powered or thermally constrained designs. The LT1816CDD#PBF's ISET pin draws only –150µA typical, minimizing loading on the programming network.
What is the thermal performance of LT1816CDD#PBF in its DFN package?
The LT1816CDD#PBF in its 3mm × 3mm DFN package has θJA = 160°C/W under standard JEDEC PCB conditions. Its underside metal pad is internally connected to V–, so soldering this pad to a large copper plane significantly improves thermal dissipation. At 6.5mA per amplifier and ±5V supplies, total quiescent power is ~65mW; with 50mA output current into 100Ω, junction temperature rise stays below 125°C ambient. The LT1816CDD#PBF is rated for 125°C max junction temperature, providing 25°C safety margin in typical industrial layouts.
Is LT1816CDD#PBF unity-gain stable, and what layout practices ensure stability?
Yes, the LT1816CDD#PBF is unity-gain stable and requires no external compensation. To ensure stability, use a solid ground plane, minimize trace lengths-especially at –IN pins-and place 0.01µF ceramic bypass capacitors directly between V+ and V– pins. For gains >1 with feedback resistors >1kΩ, add a feedback capacitor CF > RG·CIN/RF (CIN = 2pF) to cancel input capacitance poles. The LT1816CDD#PBF drives up to 10pF capacitive loads directly; larger loads require a 10–50Ω isolation resistor in series with the output.
LT1816CDD#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 1500V/µs
- Gain Bandwidth Product:
- 220 MHz
- -3db Bandwidth:
- 350 MHz
- Current - Input Bias:
- 2 µA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 6.5mA (x2 Channels)
- Current - Output / Channel:
- 80 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 11 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x3)
LT1816CDD#PBF FAQ
1.How can I place an order for LT1816CDD#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1816CDD#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 LT1816CDD#PBF reliable?
The price and inventory of LT1816CDD#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1816CDD#PBF is usually 5 days.
3.What payment methods are accepted for LT1816CDD#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1816CDD#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1816CDD#PBF?
LT1816CDD#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1816CDD#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 LT1816CDD#PBF?
For technical support, including LT1816CDD#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1816CDD#PBF requirements.
6.How does Aetrix verify that LT1816CDD#PBF is sourced from the original manufacturer or authorized distributors?
All LT1816CDD#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 LT1816CDD#PBF meets industry standards.
7.What is the process for return or replacement of LT1816CDD#PBF?
All LT1816CDD#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1816CDD#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 LT1816CDD#PBF part is unused and in its original packaging.
Return procedure for LT1816CDD#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1816CDD#PBF Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
