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Analog Devices Inc. LT1723IMS8#TRPBF
- Part No.:
- LT1723IMS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LT1723IMS8#TRPBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,442
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Product details
Overview
LT1723IMS8#TRPBF from Analog Devices (formerly Linear Technology) is a dual, low-noise, high-speed precision operational amplifier in an 8-lead MSOP package. It delivers 200MHz gain bandwidth, 70V/µs slew rate, and 3.8nV/√Hz input voltage noise at ±5V supplies - enabling high-fidelity video line driving, active filtering, and wideband signal conditioning in space-constrained industrial and communications systems.
For engineers reviewing the LT1723IMS8#TRPBF datasheet, LT1723IMS8#TRPBF pinout, LT1723IMS8#TRPBF application, or LT1723IMS8#TRPBF equivalent, this page provides verified electrical specifications, thermal performance data across –40°C to 85°C, MSOP package layout guidance, and validated alternatives for differential video amplification, ADSL receiver front-ends, and high-speed buffer design.
Technical Context
The LT1723IMS8#TRPBF employs a voltage-feedback architecture with a folded-cascode first stage and complementary emitter-follower output stage, optimized for unity-gain stability with ≤100pF capacitive loads. Its input bias current cancellation technique eliminates the need for matched source impedances while maintaining <300nA max input bias current and <400µV max input offset voltage.
It operates from ±2.3V to ±5.5V dual supplies or a single 5V rail, delivering ±3.1V output swing into 500Ω and ±3.0V into 150Ω at ±5V. Channel separation exceeds 82dB at 1MHz, supporting tightly coupled dual-channel applications like differential video drivers and multichannel data acquisition without crosstalk degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth | 200MHz - ensures ≥60dB open-loop gain at 1MHz video frequencies for precise closed-loop gain control |
| Slew Rate | 70V/µs - supports full-scale 2V step settling in <112ns at 0.01% error for fast transient response |
| Input Noise Voltage | 3.8nV/√Hz at 10kHz - enables low-noise amplification of weak signals in RF/ADSL receivers |
| Input Offset Voltage | 400µV max - guarantees DC accuracy in precision instrumentation and active filter DC biasing |
| Supply Current | 3.7mA per amplifier - balances speed and power efficiency for dual-channel operation in thermally constrained PCBs |
| Output Drive | 23mA min - drives 150Ω loads to ±3V, suitable for CAT-5 twisted-pair line driving without external buffers |
| Operating Temp | –40°C to +85°C - qualified for industrial and telecom infrastructure environments |
Pinout & Package
LT1723IMS8#TRPBF is housed in an 8-lead MSOP (MS8) package, 3.0mm × 3.0mm × 0.85mm profile, with exposed pad for thermal enhancement. Pin pitch is 0.65mm; lead coplanarity ≤0.102mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT A | Amplifier A output | Capable of ±3.0V swing into 150Ω; requires 25Ω series resistor for >100pF load stability |
| 2 - –IN A | Inverting input A | Protected by back-to-back diodes; differential input voltage must be limited to ±0.7V |
| 3 - +IN A | Non-inverting input A | ESD-clamped to V+ and V–; no external balancing resistor needed due to bias current cancellation |
| 4 - V– | Negative supply rail | Must be decoupled with 0.01µF ceramic + 1µF tantalum near pin; ground plane recommended |
| 5 - V+ | Positive supply rail | Same decoupling requirements as V–; total supply voltage range: ±2.3V to ±5.5V |
| 6 - +IN B | Non-inverting input B | Independent channel; shares same ESD protection and input impedance characteristics as +IN A |
| 7 - –IN B | Inverting input B | Matches –IN A in noise, offset, and CMRR; channel separation ≥82dB prevents inter-channel interference |
| 8 - OUT B | Amplifier B output | Electrically identical to OUT A; supports independent gain configurations per channel |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stable | Operates stably with CL ≤ 100pF - eliminates need for external compensation in most gain ≥1 configurations |
| Low input bias current | <300nA max - enables high-Z sensor interfaces and precision integrators without significant DC error |
| Dual-channel isolation | 82dB channel separation at 1MHz - preserves signal integrity in differential video and I/Q demodulator paths |
| Single-supply capability | 1.5V to 3.5V output swing on 5V rail with 500Ω load to 2.5V - simplifies level-shifting in mixed-signal systems |
| Optimized noise vs RS | Minimum total input noise at RS = 0.8k–12kΩ - guides optimal source impedance selection for SNR-critical stages |
Applications
| Differential Video Line Driver | ADSL/HDSL II Receiver Front-End |
|---|---|
|
Use Scenario: Driving balanced video signals over CAT-5 twisted pair in broadcast equipment with minimal distortion. IC Role / Device Role / Timing Role: Dual op-amp configured as differential line driver with 62.5Ω termination and 5pF compensation. Use Value: Delivers –85dBc THD at 1MHz and 200MHz GBW to preserve multiburst video fidelity over 100m cable runs. |
Use Scenario: Amplifying low-level analog signals from DSL line interface ICs before ADC sampling. IC Role / Device Role / Timing Role: High-SNR, low-distortion gain stage with 3.8nV/√Hz noise and 200MHz bandwidth. Use Value: Enables >70dB SNR in 12-bit ADC systems operating up to 10MHz baseband, meeting ITU-T G.992.1 requirements. |
| Active Low-Pass Filter | High-Speed Instrumentation Buffer |
|
Use Scenario: Implementing 5MHz 4th-order Butterworth filter in medical ultrasound receive chains. IC Role / Device Role / Timing Role: Dual op-amp used in two cascaded Sallen-Key stages with precision RC networks. Use Value: Maintains phase linearity and <0.1dB passband ripple due to high open-loop gain (>100dB at 10kHz). |
Use Scenario: Isolating high-impedance sensor outputs (e.g., piezoelectric accelerometers) from noisy digital subsystems. IC Role / Device Role / Timing Role: Unity-gain buffer with 0.01% settling in 112ns and 3.7mA quiescent current per channel. Use Value: Preserves signal integrity during fast transients while minimizing power draw in battery-operated portable instruments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-speed precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4898-2ARMZ | Lower input noise (1.1nV/√Hz), higher supply current (10.5mA), wider supply range (±5V to ±12V) | Better suited for ultra-low-noise preamps; less optimal for low-power, space-constrained designs | Choose when noise dominates budget and board area/power allow larger decoupling and thermal margin |
| LMH6629MA/NOPB | Higher slew rate (1000V/µs), lower GBW (800MHz), higher input bias current (1.2µA) | Targeted at RF/IF gain blocks; not optimized for precision DC performance or low-noise audio/video | Prefer for GHz-range small-signal amplification where DC accuracy and harmonic distortion are secondary |
Compared with LT1723IMS8#TRPBF, ADA4898-2ARMZ trades 2.7nV/√Hz higher noise for 6.8mA extra supply current and broader voltage headroom, while LMH6629MA/NOPB sacrifices DC precision and low-frequency linearity for extreme slew rate - making LT1723IMS8#TRPBF the balanced choice for video, DSL, and precision wideband buffering.
Availability
LT1723IMS8#TRPBF is available at Aetrix Electronics and suitable for differential video transmission, ADSL receiver front-ends, and active filter design requiring stable component supply, long-term industrial lifecycle support, and guaranteed –40°C to +85°C operation.
Supply support for LT1723IMS8#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 acquired Linear Technology in 2017 and maintains its legacy high-performance analog portfolio with rigorous process control and reliability testing.
The LT1723IMS8#TRPBF belongs to Linear's precision high-speed op-amp family, engineered for applications demanding simultaneous low noise, low distortion, wide bandwidth, and robust DC accuracy in compact packages.
FAQ
What is the maximum capacitive load the LT1723IMS8#TRPBF can drive while remaining unity-gain stable?
The LT1723IMS8#TRPBF is unity-gain stable with capacitive loads up to 100pF. For loads exceeding 100pF, a 25Ω series resistor placed between the output and the load restores stability without degrading bandwidth significantly. This behavior is confirmed in the datasheet's "Overshoot vs Capacitive Load" plot (Figure 17) and "Capacitive Loading" section.
Does the LT1723IMS8#TRPBF require matched input source impedances to minimize offset error?
No. The LT1723IMS8#TRPBF uses an input bias current cancellation technique that renders matching unnecessary. Adding external resistors to balance source impedances degrades DC accuracy and increases noise - the datasheet explicitly advises against it in the "Input Considerations" section.
What is the guaranteed input offset voltage specification for LT1723IMS8#TRPBF over temperature?
The LT1723IMS8#TRPBF has a maximum input offset voltage of 400µV at TA = 25°C, and 900µV over the full –40°C to +85°C operating range. Input offset drift is specified at 3–10µV/°C, ensuring predictable DC error accumulation in precision sensor interfaces.
Can the LT1723IMS8#TRPBF operate from a single 3.3V supply?
Yes - the LT1723IMS8#TRPBF functions with total supply voltages from ±2.3V to ±5.5V (i.e., 4.6V to 11V). On a single 3.3V rail, output swing is limited to ~0.8V to 2.5V with 500Ω load to 1.65V, as verified in the "Output Swing vs Supply Voltage" curve (Figure 14) and Electrical Characteristics tables.
How does the LT1723IMS8#TRPBF achieve low noise while maintaining low supply current?
The LT1723IMS8#TRPBF achieves 3.8nV/√Hz input voltage noise at only 3.7mA per amplifier by optimizing its internal bipolar process and biasing. Total input noise is minimized for source resistances between 0.8kΩ and 12kΩ - a deliberate trade-off that avoids excessive quiescent current while preserving SNR in typical transducer and line-driver applications.
LT1723IMS8#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 70V/µs
- Gain Bandwidth Product:
- 200 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 40 nA
- Voltage - Input Offset:
- 150 µV
- Current - Supply:
- 3.7mA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 10 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
LT1723IMS8#TRPBF FAQ
1.How can I place an order for LT1723IMS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1723IMS8#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 LT1723IMS8#TRPBF reliable?
The price and inventory of LT1723IMS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1723IMS8#TRPBF is usually 5 days.
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We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1723IMS8#TRPBF transactions.
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4.How is shipping managed for LT1723IMS8#TRPBF?
LT1723IMS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1723IMS8#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 LT1723IMS8#TRPBF?
For technical support, including LT1723IMS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1723IMS8#TRPBF requirements.
6.How does Aetrix verify that LT1723IMS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1723IMS8#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 LT1723IMS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1723IMS8#TRPBF?
All LT1723IMS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1723IMS8#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 LT1723IMS8#TRPBF part is unused and in its original packaging.
Return procedure for LT1723IMS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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