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Analog Devices Inc. LT1816ACMS#PBF
- Part No.:
- LT1816ACMS#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LT1816ACMS#PBF.pdf
- Description:
- IC OPAMP VFB 2 CIRCUIT 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,100
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Product details
Overview
LT1816ACMS#PBF from Analog Devices (formerly Linear Technology) is a dual-channel, programmable-supply-current, high-speed voltage-feedback operational amplifier with 220MHz gain-bandwidth product, 1500V/µs slew rate, and 6.5mA per amplifier supply current at full speed. It operates from ±5V or single 5V supplies, delivers ±3.5V output swing into 100Ω, and is used in precision video buffers and active filter stages requiring low distortion and fast settling.
For engineers reviewing the LT1816ACMS#PBF datasheet, LT1816ACMS#PBF pinout, LT1816ACMS#PBF application, or LT1816ACMS#PBF equivalent, key selection criteria include its programmable ISET pin for low-power mode (1.5mA), 1.5mV max input offset voltage, 6nV/√Hz input noise, unity-gain stability, and 10-lead MSOP package compatibility with space-constrained signal-chain designs.
Technical Context
The LT1816ACMS#PBF implements a voltage-feedback topology with current-feedback slewing characteristics, enabling both precision DC performance and wideband AC response. Its input stage uses complementary NPN/PNP emitter followers for balanced bias current cancellation and 75dB CMRR over –40°C to 85°C.
It features an ISET pin that configures supply current between 1.5mA (low-power mode, 50MHz GBW) and 6.5mA (full-speed mode, 220MHz GBW) via external resistor to V–. Output drives ±3.5V into 100Ω load with <0.1% settling in 15ns at AV = –1, supporting high-fidelity video and RF signal conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 220MHz at full speed - supports stable closed-loop operation up to 100MHz in AV = 2 configuration |
| Slew Rate | 1500V/µs - enables clean 5MHz, 2VP-P output into 100Ω without slewing-induced distortion |
| Supply Current (per amp) | 6.5mA at full speed; 1.5mA in low-power mode - selectable via ISET pin for dynamic power scaling |
| Input Offset Voltage | Max 2.0mV (0°C to 70°C) - ensures ≤2mV DC error in precision gain stages without trimming |
| Input Noise Voltage | 6nV/√Hz at 10kHz - maintains SNR >70dB in 5MHz bandwidth applications |
| Output Swing | ±3.5V into 100Ω on ±5V supplies - delivers full-rail video-level signals with minimal headroom loss |
| Operating Temperature | 0°C to 70°C - validated for commercial-grade instrumentation and communications equipment |
Pinout & Package
LT1816ACMS#PBF is housed in a 10-lead plastic MSOP (MS package) with exposed metal pad internally connected to V–. Thermal resistance θJA = 250°C/W with short traces; reduced with PCB copper pour under pin 5 (V–).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 OUT A | Amplifier A output | Drives loads down to 100Ω; requires 10Ω series resistor for >10pF capacitive loads |
| 2 –IN A | Inverting input A | High-impedance node; minimize trace length to reduce parasitic capacitance-induced peaking |
| 3 +IN A | Non-inverting input A | Matched impedance to –IN A recommended to cancel bias current offset |
| 4 V– | Negative supply rail | Internally connected to underside metal; must be tied to ground plane for thermal management |
| 5 V– | Second V– connection | Provides low-inductance return path; connects directly to PCB ground plane |
| 6 V+ | Positive supply rail | Bypass with 0.01µF ceramic capacitor placed within 2mm of pin |
| 7 OUT B | Amplifier B output | Independent output; channel separation >80dB prevents crosstalk in dual-channel systems |
| 8 –IN B | Inverting input B | Electrically isolated from Channel A; layout symmetry improves matching |
| 9 +IN B | Non-inverting input B | Same input structure as Channel A; supports matched dual gain blocks |
| 10 ISET | Supply current programming | Connect to V– via ≤75Ω for full speed; 40kΩ yields 1.5mA/amp low-power mode |
Key Features
| Feature | Design Value |
|---|---|
| Programmable supply current | ISET pin enables dynamic trade-off between 1.5mA/amp (50MHz GBW) and 6.5mA/amp (220MHz GBW) |
| Low distortion at high frequency | –70dB THD at 5MHz, 2VP-P into 100Ω supports broadcast-quality video amplification |
| Unity-gain stable | No external compensation required for AV ≥ 1 configurations - simplifies layout and reduces BOM count |
| Wide input common-mode range | ±3.5V on ±5V supplies - accommodates rail-to-rail input signals in single-supply front-ends |
| Fast settling time | 15ns to 0.1% for 5V step at AV = –1 - enables high-throughput data acquisition sampling |
Applications
| Video Line Driver | Active Low-Pass Filter |
|---|---|
Use Scenario: Driving 75Ω coaxial cable in SD/HD video distribution systems with minimal group delay variation. IC Role / Device Role / Timing Role: Dual-channel buffer amplifier with matched channels ensuring identical gain and phase response across Y/C paths. Use Value: 0.08% differential gain and 0.04° differential phase error preserve color fidelity in composite video signals. | Use Scenario: 5th-order Butterworth anti-aliasing filter in 10MSPS ADC front-end with 2MHz cutoff. IC Role / Device Role / Timing Role: High-speed op-amp implementing unity-gain integrator and gain stage in multi-pole topology. Use Value: 220MHz GBW and 1500V/µs slew rate prevent phase shift and overshoot at filter cutoff frequency. |
| RF Signal Conditioning | High-Speed DAC Buffer |
Use Scenario: Post-DAC amplification in direct-conversion transceivers operating at 100–500MHz IF bands. IC Role / Device Role / Timing Role: Wideband current-to-voltage converter and level shifter for baseband I/Q signals. Use Value: 300MHz –3dB bandwidth (AV = 1) and 6nV/√Hz noise maintain EVM <1.5% at 256-QAM. | Use Scenario: Buffering 16-bit DAC outputs in automated test equipment requiring glitch-free transient response. IC Role / Device Role / Timing Role: Precision output driver with low offset and fast settling to minimize code-dependent errors. Use Value: 1.5mV max VOS and 15ns 0.1% settling ensure <0.5LSB error across full-scale transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4897-2ARMZ | Lower 1nV/√Hz noise, 225MHz GBW, but no ISET pin; fixed 3.6mA supply current | Preferred for ultra-low-noise photodiode preamps; unsuitable where dynamic power scaling is required | Select when noise dominates over power budget and programmability is unnecessary |
| LMH6629MA/NOPB | Higher 2.5mV VOS, 1.9GHz GBW, 3700V/µs slew rate; SO-8 package only | Better for >500MHz RF gain blocks; lacks low-power mode and MSOP packaging | Select for extreme bandwidth needs where 10-lead MSOP footprint and power control are secondary |
Compared with ADA4897-2ARMZ and LMH6629MA/NOPB, LT1816ACMS#PBF uniquely balances programmable power, 10-lead MSOP compactness, and verified 220MHz/1500V/µs performance - making it optimal for dual-channel, space- and power-constrained instrumentation front-ends.
Availability
LT1816ACMS#PBF is available at Aetrix Electronics and suitable for video line drivers, active filters, RF signal conditioning, high-speed DAC buffering, and precision instrumentation requiring stable component supply and guaranteed commercial-temperature performance.
Supply support for LT1816ACMS#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, emphasizing precision, speed, and reliability in signal conditioning ICs.
The LT1816ACMS#PBF belongs to the LT1815/LT1816/LT1817 family designed for high-fidelity, wideband analog signal processing in video, communications, and data acquisition systems where DC accuracy and AC performance must coexist.
FAQ
What is the maximum supply voltage rating for LT1816ACMS#PBF?
The LT1816ACMS#PBF has an absolute maximum total supply voltage (V+ to V–) of 12.6V. It is specified for operation at ±5V (10V total) or single 5V supplies. Exceeding 12.6V risks permanent damage, and operation above ±5.5V is not characterized per the datasheet. For robust design, maintain supply rails within ±5V unless derating per thermal calculations.
How does the ISET pin function on LT1816ACMS#PBF?
The ISET pin on LT1816ACMS#PBF controls supply current per amplifier: connecting it to V– via ≤75Ω enables full-speed mode (6.5mA, 220MHz GBW), while a 40kΩ resistor yields low-power mode (1.5mA, 50MHz GBW). The pin draws –150μA typical; polarity and value are critical-reversing polarity or exceeding 40kΩ degrades performance unpredictably.
Can LT1816ACMS#PBF drive a 50Ω load effectively?
Yes, LT1816ACMS#PBF delivers ±3.5V into 100Ω on ±5V supplies; into 50Ω, output swing reduces to approximately ±3.2V with increased distortion. For sustained 50Ω driving, add a 10Ω series resistor at the output to isolate capacitive effects and maintain stability. Peak output current remains ±50mA, sufficient for brief 50Ω transients.
What is the input common-mode voltage range for LT1816ACMS#PBF on single 5V supply?
On single 5V supply (V– = 0V, V+ = 5V), the LT1816ACMS#PBF guarantees an input common-mode range of 0.9V to 4.1V at –40°C to 85°C, with typical operation from 1.5V to 3.5V. This allows interfacing with 3.3V logic and ADCs without level-shifting, provided input signals stay within this window to maintain CMRR >70dB.
Is LT1816ACMS#PBF unity-gain stable, and what compensation is required?
Yes, LT1816ACMS#PBF is unity-gain stable with no external compensation required for AV ≥ 1 configurations. Its internal compensation ensures phase margin >40° at AV = 1. However, for gains <1 (e.g., AV = –1), stability depends on feedback network layout: keep RG and RF ≤1kΩ or add CF ≥ CIN × RG/RF to suppress input-pole peaking.
LT1816ACMS#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- 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:
- 10-MSOP
LT1816ACMS#PBF FAQ
1.How can I place an order for LT1816ACMS#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1816ACMS#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 LT1816ACMS#PBF reliable?
The price and inventory of LT1816ACMS#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1816ACMS#PBF is usually 5 days.
3.What payment methods are accepted for LT1816ACMS#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1816ACMS#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1816ACMS#PBF?
LT1816ACMS#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1816ACMS#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 LT1816ACMS#PBF?
For technical support, including LT1816ACMS#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1816ACMS#PBF requirements.
6.How does Aetrix verify that LT1816ACMS#PBF is sourced from the original manufacturer or authorized distributors?
All LT1816ACMS#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 LT1816ACMS#PBF meets industry standards.
7.What is the process for return or replacement of LT1816ACMS#PBF?
All LT1816ACMS#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1816ACMS#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 LT1816ACMS#PBF part is unused and in its original packaging.
Return procedure for LT1816ACMS#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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