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Analog Devices Inc. LT1723CMS8#TRPBF
- Part No.:
- LT1723CMS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LT1723CMS8#TRPBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,654
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Product details
Overview
LT1723CMS8#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, enabling high-fidelity video and RF signal conditioning with ±3.4V output swing into 150Ω on ±5V supplies.
For engineers reviewing the LT1723CMS8#TRPBF datasheet, LT1723CMS8#TRPBF pinout, LT1723CMS8#TRPBF application, or LT1723CMS8#TRPBF equivalent, this page provides verified circuit role, package mapping, thermal performance (θJA = 250°C/W), capacitive load stability up to 100pF, and real-world differential line driver use cases - all confirmed for the MS8 variant.
Technical Context
The LT1723CMS8#TRPBF employs a voltage-feedback architecture with a folded-cascode input stage and complementary emitter-follower output stage, optimized for unity-gain stability and fast settling (91ns to 0.1%). Its input bias current cancellation technique eliminates need for matched source impedances, and internal protection diodes limit differential input voltage to ±0.7V.
It operates across ±2.3V to ±5.5V or single 5V supply, supports rail-to-rail input common-mode range (±3.5V on ±5V), and maintains ≥80dB CMRR and PSRR over frequency - critical for active filter and data acquisition front-ends where DC accuracy and AC fidelity coexist.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth | 200MHz - enables stable closed-loop gain at video frequencies (e.g., 1080p baseband) without peaking |
| Slew Rate | 70V/µs - supports full-scale 2V step response in <100ns with minimal distortion |
| Input Noise Voltage | 3.8nV/√Hz @ 10kHz - optimal for source impedances 0.8k–12kΩ; dominates total noise only below 0.8kΩ |
| Output Current | 23mA min - drives 150Ω loads to ±3.4V, suitable for CAT-5 twisted-pair line driving |
| Supply Current | 3.7mA per amplifier - balances speed and power for dual-channel portable instrumentation |
| Capacitive Load Stability | Stable up to 100pF - allows direct connection to ADC inputs or long PCB traces without external isolation |
| Input Offset Voltage | 400µV max - ensures <0.1% gain error in precision gain stages with 1kΩ feedback networks |
Pinout & Package
LT1723CMS8#TRPBF uses the 8-lead MSOP (MS8) package: 3mm × 3mm body, 0.65mm lead pitch, 1.10mm max height. Thermal resistance θJA = 250°C/W enables operation at 85°C ambient with moderate copper pour.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT A | Amplifier A output | Capable of ±3.4V swing into 150Ω; requires 25Ω series resistor for >100pF loads |
| 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 0.01–0.1µF ceramic capacitor near pin; accepts –5.5V min |
| 5: V+ | Positive supply rail | Accepts +5.5V max; quiescent current 3.7mA per amp enables dual-channel operation at <8mW |
| 6: +IN B | Non-inverting input B | Independent of Channel A; shares same ESD protection structure and input impedance (≥5MΩ) |
| 7: –IN B | Inverting input B | Matches Channel A specs; channel separation ≥82dB prevents crosstalk in dual-path systems |
| 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 with CL ≤ 100pF without external compensation - simplifies layout for video buffers |
| Low input bias current | 300nA max - enables high-Z sensor interfaces (e.g., piezoelectric pickups) without DC error amplification |
| Dual-channel isolation | 82dB channel separation at 1MHz - preserves signal integrity in dual ADC drivers or stereo audio paths |
| Wide supply range | ±2.3V to ±5.5V or single 5V - supports legacy ±5V systems and modern low-voltage embedded designs |
| Input voltage range | ±3.5V on ±5V supplies - accommodates full-swing video signals without clipping at input stage |
| Thermal robustness | TJMAX = 150°C with θJA = 250°C/W - allows operation in industrial enclosures without forced air |
Applications
| Differential Video Line Driver | ADSL/VDSL Receiver Front-End |
|---|---|
|
Use Scenario: Driving 62.5Ω differential loads over CAT-5 twisted pair in broadcast equipment. IC Role / Device Role / Timing Role: Dual op-amp configured as differential line driver with gain = 2, rejecting common-mode noise on long cables. Use Value: 70V/µs slew rate and 200MHz GBW preserve edge integrity of HD-SDI timing; 3.8nV/√Hz noise ensures >70dB SNR at 10MHz. |
Use Scenario: Amplifying weak upstream signals (–40dBm) in DSLAM receiver modules before ADC sampling. IC Role / Device Role / Timing Role: Low-noise preamplifier with adjustable gain and 100pF capacitive load tolerance for anti-aliasing filter interface. Use Value: 400µV max VOS minimizes DC offset in DC-coupled paths; 80dB PSRR rejects switching regulator noise in mixed-signal boards. |
| Active Filter for Data Acquisition | High-Speed Buffer for Precision DAC Output |
|
Use Scenario: 4th-order Butterworth anti-aliasing filter in 1MSPS data loggers with ±10V input range. IC Role / Device Role / Timing Role: Dual-channel op-amp implementing transimpedance and gain stages with matched AC response. Use Value: 91ns 0.1% settling time meets 1MSPS timing budget; 23mA output current drives 500Ω filter termination resistors. |
Use Scenario: Isolating and boosting output of 16-bit DACs (e.g., LTC2657) in automated test equipment. IC Role / Device Role / Timing Role: Unity-gain buffer with rail-to-rail input and 3.4V output swing into 150Ω coaxial cable. Use Value: 3.8nV/√Hz input noise prevents degradation of DAC's 96dB SNR; 82dB channel separation avoids inter-channel crosstalk. |
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 |
|---|---|---|---|
| ADA4897-2ARMZ | Lower noise (1nV/√Hz), higher supply current (10.5mA), smaller 8-lead MSOP package (3×3mm same footprint) | Better for ultra-low-noise photodiode amps; less suitable for battery-powered dual-channel systems due to 2.8× higher IQ | Select when noise floor <1.5nV/√Hz is mandatory and power budget allows ≥10mA per channel. |
| LMH6629MA/NOPB | Higher slew rate (1000V/µs), wider GBW (1.5GHz), larger SOIC-8 package (no pin compatibility) | Optimized for RF IF amplification >100MHz; lacks 100pF capacitive load stability and has higher VOS (1.5mV) | Select for GHz-range signal chains where phase linearity and bandwidth outweigh DC precision requirements. |
Compared with ADA4897-2ARMZ and LMH6629MA/NOPB, the LT1723CMS8#TRPBF uniquely balances 200MHz bandwidth, 3.8nV/√Hz noise, and 100pF capacitive load stability in a thermally efficient MSOP package - making it optimal for cost-sensitive, space-constrained video and broadband communications designs requiring both speed and DC accuracy.
Availability
LT1723CMS8#TRPBF is available at Aetrix Electronics and suitable for video line driving, DSL receiver front-ends, and active filter design requiring stable component supply, traceable sourcing, and lifecycle continuity.
Supply support for LT1723CMS8#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 continues its legacy of high-performance analog ICs for precision signal conditioning.
The LT1723CMS8#TRPBF belongs to Linear's high-speed precision op-amp family, designed specifically for applications demanding simultaneous low noise, wide bandwidth, and robust DC specifications - such as professional video infrastructure and wired communications receivers.
FAQ
What is the maximum capacitive load the LT1723CMS8#TRPBF can drive while remaining stable?
The LT1723CMS8#TRPBF is unity-gain stable with capacitive loads up to 100pF. Beyond that, adding a 25Ω series resistor at the output ensures stability regardless of load capacitance. This capability is confirmed in the datasheet's "Capacitive Loading" section and validated in typical performance plots (Figure 17), making LT1723CMS8#TRPBF suitable for direct interfacing with ADC inputs or long PCB traces without external compensation networks.
Does the LT1723CMS8#TRPBF require matched input resistances for optimal DC performance?
No. The LT1723CMS8#TRPBF uses an input bias current cancellation technique, so matching source impedances is unnecessary and may degrade DC accuracy. The datasheet explicitly states that adding resistance to balance source resistance is not recommended, and source resistances should remain below 12kΩ to avoid increased noise and offset errors - a key differentiator confirmed in the "Input Considerations" section of the LT1723CMS8#TRPBF documentation.
What is the guaranteed operating temperature range for the LT1723CMS8#TRPBF?
The LT1723CMS8#TRPBF is specified for 0°C to 70°C ambient operation (Commercial grade). While the underlying LT1723 die is characterized from –40°C to 85°C, the "C" suffix in LT1723CMS8#TRPBF indicates commercial-grade screening and guaranteed performance only within 0°C to 70°C - as documented in the "Order Information" table and electrical characteristics notes (Note 5) of the LT1723CMS8#TRPBF datasheet.
Can the LT1723CMS8#TRPBF operate from a single 5V supply?
Yes. The LT1723CMS8#TRPBF is fully specified for single 5V operation: output swings from 1.5V to 3.5V into a 500Ω load referenced to 2.5V, and input common-mode range extends from 1V to 4V. These parameters are measured and guaranteed in the Electrical Characteristics tables under VS = 5V conditions, confirming LT1723CMS8#TRPBF's suitability for modern low-voltage embedded systems without dual-rail supplies.
How does the LT1723CMS8#TRPBF compare to the SO-8 packaged LT1723CS8#TRPBF in thermal performance?
The LT1723CMS8#TRPBF (MSOP) has θJA = 250°C/W, while the LT1723CS8#TRPBF (SO-8) has θJA = 190°C/W - meaning the SO-8 version dissipates heat more efficiently. However, the MSOP's smaller footprint (3mm × 3mm vs. 5mm × 4mm) trades thermal resistance for board space savings. Both packages share identical electrical specs, but LT1723CMS8#TRPBF requires more careful thermal design in high-power-density layouts.
LT1723CMS8#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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
LT1723CMS8#TRPBF FAQ
1.How can I place an order for LT1723CMS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1723CMS8#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 LT1723CMS8#TRPBF reliable?
The price and inventory of LT1723CMS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1723CMS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1723CMS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1723CMS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1723CMS8#TRPBF?
LT1723CMS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1723CMS8#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 LT1723CMS8#TRPBF?
For technical support, including LT1723CMS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1723CMS8#TRPBF requirements.
6.How does Aetrix verify that LT1723CMS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1723CMS8#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 LT1723CMS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1723CMS8#TRPBF?
All LT1723CMS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1723CMS8#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 LT1723CMS8#TRPBF part is unused and in its original packaging.
Return procedure for LT1723CMS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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