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Analog Devices Inc. LTC6253CTS8#TRMPBF
- Part No.:
- LTC6253CTS8#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC6253CTS8#TRMPBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:1,777
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Product details
Overview
LTC6253CTS8#TRMPBF from Analog Devices (formerly Linear Technology) is a dual, rail-to-rail input/output, high-speed operational amplifier in an 8-lead TSOT-23 package. It delivers 720MHz gain-bandwidth product, 280V/µs slew rate, and 2.75nV/√Hz input voltage noise at 3.5mA supply current per amplifier, operating from 2.5V to 5.25V supplies. It is optimized for driving high-resolution ADCs like the LTC2393-16 in battery-powered or low-voltage signal chains.
For engineers reviewing the LTC6253CTS8#TRMPBF datasheet, LTC6253CTS8#TRMPBF pinout, LTC6253CTS8#TRMPBF application, or LTC6253CTS8#TRMPBF equivalent, key selection criteria include its shutdown capability (42µA disable current), dual-channel layout in compact TSOT-23, rail-to-rail output swing within 65mV of rails at 5mA load, and verified performance at 0°C to 70°C ambient.
Technical Context
The LTC6253CTS8#TRMPBF employs a dual-input-stage architecture-PNP-based for VCM = V– to ~V+ – 1.2V and NPN-based for the upper 1.2V range-enabling true rail-to-rail common-mode operation. Its unity-gain-stable design supports AV = 1 configurations with 400MHz –3dB bandwidth and 36ns 0.1% settling time on 2V steps.
Each amplifier integrates independent shutdown control (SHDN pin), fast turn-on/off times (3.5µs/2µs), and robust output drive (±90mA). The TSOT-23-8 package uses exposed pad thermal management with θJA = 195°C/W, supporting continuous operation up to 125°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 720MHz - enables stable unity-gain operation up to 400MHz closed-loop bandwidth |
| Slew Rate | 280V/µs - supports clean 4V step response without slewing distortion in high-speed buffers |
| Input Noise Density | 2.75nV/√Hz @ 1MHz - preserves SNR in precision front-end amplification before 16-bit ADCs |
| Supply Current per Amp | 3.5mA max @ 5V - achieves high speed with ultra-low power vs. comparable GHz-class op amps |
| Input Offset Voltage | ±350µV max @ 25°C - ensures DC accuracy in sensor conditioning and reference buffering |
| Output Swing | Within 65mV of rails @ 5mA - delivers full dynamic range into 1kΩ loads across 2.5–5.25V supplies |
| Shutdown Current | 42µA max - reduces system standby power by >98% while retaining fast wake-up (<4µs) |
Pinout & Package
Package: 8-Lead Plastic TSOT-23 (TS8), 0°C to 70°C specified temperature range, exposed pad soldered to PCB for thermal conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 OUT A | Amplifier A output | Rail-to-rail capable; sources/sinks ±90mA; connects directly to ADC input or filter stage |
| 2 –IN A | Inverting input A | High-impedance node; accepts signals from V– to V+; matched to +IN A for precision differential gain |
| 3 +IN A | Non-inverting input A | Same rail-to-rail CMR as –IN A; bias current cancellation active above 200mV from V– |
| 4 V+ | Positive supply | Accepts 2.5V–5.25V; decoupling capacitor required at pin for stability |
| 5 +IN B | Non-inverting input B | Independent channel; identical specs to +IN A; enables dual-path signal processing |
| 6 –IN B | Inverting input B | Matched to +IN B; supports fully differential or single-ended configurations per channel |
| 7 OUT B | Amplifier B output | Electrically isolated from OUT A; shares V+/V– but no crosstalk (–96dB @ 2.5MHz) |
| 8 V– | Negative supply / GND | Typically 0V; exposed pad internally connected to V–; must be soldered for thermal and electrical integrity |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O with dual-input stage | Enables full-swing signal handling from 0V to 5.25V supply without clipping or phase reversal |
| Integrated shutdown control | Single SHDN pin per amplifier (not present on TS8 variant - confirmed absent per pinout) - note: TS8 package has no SHDN pin; only MS8/MS10 variants include SHDN |
| Low 1/f noise corner | 2µVP-P (0.1Hz–10Hz) - critical for precision DC-coupled sensor interfaces and weigh-scale front ends |
| High PSRR & CMRR | 70dB PSRR and 105dB CMRR - rejects supply ripple and common-mode interference in noisy industrial environments |
| Fast 0.1% settling | 36ns @ 2V step - meets timing budgets for multiplexed 1Msps ADC drivers with minimal dead time |
Applications
| ADC Driver for 16-bit SAR Converters | Rail-to-Rail Signal Buffering |
|---|---|
Use Scenario: Driving the LTC2393-16 16-bit, 1Msps SAR ADC from a 5V single supply with 2.5V reference. IC Role / Device Role / Timing Role: Dual-channel buffer isolating source impedance; one channel conditions analog input, the other drives REFOUT/REFIN paths. Use Value: 93.28dB SNR achieved in reference design confirms noise and distortion performance meet 16-bit ENOB requirements without external filtering. | Use Scenario: Level-shifting and amplifying output of a 0–3.3V DAC in a portable medical monitor with 2.7V battery supply. IC Role / Device Role / Timing Role: Unity-gain buffer maintaining signal fidelity across full 0–2.7V range while sourcing 5mA to display driver. Use Value: Output swing within 40mV of rails at 5mA load preserves >98% of DAC's dynamic range at lowest operating voltage. |
| Battery-Powered Instrumentation Front End | Active Filter Stage in Portable Audio |
Use Scenario: Amplifying thermocouple or strain gauge signals in handheld test equipment powered by two AA cells (2.4–3.2V). IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with programmable gain; operates down to 2.5V supply with <3.5mA total quiescent current. Use Value: 2.75nV/√Hz input noise and 350µV offset enable µV-level resolution without chopper stabilization or auto-zero overhead. | Use Scenario: Implementing 2nd-order Sallen-Key low-pass filter (fc = 20kHz) in Bluetooth headset analog audio path. IC Role / Device Role / Timing Role: Dual op-amp implementing filter topology; one section as integrator, second as gain stage with precise pole placement. Use Value: 720MHz GBW ensures filter Q and fc remain stable across process/voltage/temperature; harmonic distortion <–100dBc at 1kHz. |
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 noise (1nV/√Hz), higher supply current (10.5mA), no shutdown, MSOP-8 package | Better SNR for ultra-low-noise preamps; unsuitable for battery-constrained designs due to 3× higher IQ | Select when noise dominates over power; avoid if >5mA per amp violates system budget. |
| LMH6629MA/NOPB | Higher GBW (1.5GHz), higher IQ (12.5mA), no rail-to-rail output, SOIC-8 package | Supports >500MHz small-signal bandwidth; cannot swing to rails - limits dynamic range in low-VCC systems | Choose for RF/IF gain stages where headroom >1V is available; not viable for 2.5V–3.3V rail-to-rail signal chains. |
Compared with ADA4897-2ARMZ and LMH6629MA/NOPB, the LTC6253CTS8#TRMPBF uniquely balances 720MHz bandwidth, rail-to-rail operation, and sub-4mA quiescent current in a space-constrained TSOT-23-8, making it optimal for portable 16-bit data acquisition where size, power, and DC precision are co-constrained.
Availability
LTC6253CTS8#TRMPBF is available at Aetrix Electronics and suitable for high-speed ADC driver, portable instrumentation front end, rail-to-rail buffering, and active filter applications requiring stable component supply across industrial and medical OEM programs.
Supply support for LTC6253CTS8#TRMPBF 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, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, formed through the acquisition of Linear Technology in 2017.
The LTC6253 belongs to ADI's high-speed precision op amp product line, engineered specifically for low-power, rail-to-rail signal conditioning in portable, battery-operated, and high-resolution measurement systems where bandwidth, noise, and supply voltage headroom are simultaneously critical.
FAQ
What is the operating temperature range for the LTC6253CTS8#TRMPBF?
The LTC6253CTS8#TRMPBF is specified for operation from 0°C to 70°C ambient temperature. It is part of the 'C' grade family and is guaranteed to meet all electrical specifications across this range. Junction temperature must remain ≤125°C under actual operating conditions, supported by its TSOT-23-8 thermal design with θJA = 195°C/W.
Does the LTC6253CTS8#TRMPBF include a shutdown pin?
No, the LTC6253CTS8#TRMPBF does not include a shutdown pin. Shutdown functionality is only available on MS8 and MS10 package variants (e.g., LTC6253CMS8#TRMPBF, LTC6253CMS#TRMPBF). The TSOT-23-8 (TS8) package has 8 pins dedicated solely to dual-amplifier I/O and supplies - no SHDN terminal is allocated or bonded out.
What is the maximum capacitive load the LTC6253CTS8#TRMPBF can drive stably in unity gain?
The LTC6253CTS8#TRMPBF remains stable driving ≥1000pF in unity-gain configuration when a series output resistor (RS) of 10Ω–50Ω is used. Per Figure 36 in the datasheet, overshoot stays <10% with RS = 20Ω and CL = 1000pF. Direct capacitive loading >100pF without isolation risks peaking or oscillation due to its high GBW and low output impedance.
Can the LTC6253CTS8#TRMPBF operate from a 2.7V single supply?
Yes, the LTC6253CTS8#TRMPBF is fully specified and characterized for operation from 2.7V single supply (V+ = 2.7V, V– = 0V). At 2.7V, it maintains 630MHz GBW, 170V/µs slew rate, and rail-to-rail output swing within 40mV of rails at 5mA load - enabling use in Li-ion or dual-AA powered systems without performance compromise.
How does the input offset voltage behave across common-mode voltage range?
The LTC6253CTS8#TRMPBF exhibits two distinct offset regions due to its dual PNP/NPN input stage: <350µV below ~V+ – 1.2V (PNP active), and <2.2mV near the positive rail (NPN active). This transition is intentional and documented in Figures G01–G04; users must account for the step change in precision-critical DC applications spanning full rail-to-rail input.
LTC6253CTS8#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-8 Thin, TSOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 280V/µs
- Gain Bandwidth Product:
- 720 MHz
- -3db Bandwidth:
- 400 MHz
- Current - Input Bias:
- 1.4 µA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 4.25mA (x2 Channels)
- Current - Output / Channel:
- 100 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.25 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-8
LTC6253CTS8#TRMPBF FAQ
1.How can I place an order for LTC6253CTS8#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6253CTS8#TRMPBF 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 LTC6253CTS8#TRMPBF reliable?
The price and inventory of LTC6253CTS8#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6253CTS8#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC6253CTS8#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6253CTS8#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6253CTS8#TRMPBF?
LTC6253CTS8#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6253CTS8#TRMPBF 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 LTC6253CTS8#TRMPBF?
For technical support, including LTC6253CTS8#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6253CTS8#TRMPBF requirements.
6.How does Aetrix verify that LTC6253CTS8#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC6253CTS8#TRMPBF 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 LTC6253CTS8#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC6253CTS8#TRMPBF?
All LTC6253CTS8#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6253CTS8#TRMPBF, 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 LTC6253CTS8#TRMPBF part is unused and in its original packaging.
Return procedure for LTC6253CTS8#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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