My Inquiry
My Account
Analog Devices Inc. LTC6257HMS#PBF
- Part No.:
- LTC6257HMS#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-TFSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC6257HMS#PBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,301
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC6257HMS#PBF from Analog Devices (formerly Linear Technology) is a quad rail-to-rail input/output operational amplifier optimized for ultra-low-power, precision signal conditioning in battery-powered and automotive systems. It delivers 6.5MHz gain-bandwidth product, 4.5MHz –3dB bandwidth at unity gain, 65µA supply current per amplifier, 350µV max input offset voltage, and operates from 1.8V to 5.25V supplies across –40°C to 125°C.
For engineers reviewing the LTC6257HMS#PBF datasheet, LTC6257HMS#PBF pinout, LTC6257HMS#PBF application, or LTC6257HMS#PBF equivalent, key selection criteria include its C-Load™ capacitive-load drive capability (up to 100nF), shutdown current of ≤7µA, rail-to-rail I/O swing within 30mV of rails, and guaranteed high-temp performance up to 125°C - critical for automotive sensor front-ends and portable instrumentation.
Technical Context
The LTC6257HMS#PBF employs a dual-input PNP/NPN topology enabling true rail-to-rail input operation with ±0.1V beyond supply rails and low input bias current (≤50nA) over 0.2V–(V+–0.2V) common-mode range. Its patented C-Load™ compensation maintains unity-gain stability into 100nF loads without external compensation.
It integrates active shutdown logic with TTL/CMOS-compatible SHDN pins (VIH = 1.5V, VIL = 0.6V), delivering <7µA quiescent current per channel while placing outputs in high-impedance state - ideal for multiplexed analog signal paths and power-gated sensor arrays.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 6.5MHz - enables stable closed-loop gain ≥10 at >650kHz or unity gain at 4.5MHz for anti-aliasing filter design. |
| Supply Current per Amplifier | 65µA max - supports >1-year battery life in 10µA-average IoT sensor nodes powered by coin cells. |
| Input Offset Voltage | 350µV max - ensures ≤0.035% error in 1V full-scale medical sensor amplification without trimming. |
| Rail-to-Rail I/O Swing | Within 30mV of V+ and V– - preserves dynamic range in 1.8V-supply systems where headroom is constrained. |
| Capacitive Load Drive | 100nF @ unity gain - eliminates need for isolation resistors when driving ADC input capacitors or long PCB traces. |
| Operating Temperature | –40°C to 125°C - qualified for under-hood automotive applications and industrial process monitoring. |
| Shutdown Current | 7µA max - reduces system standby power by >90% vs active mode in time-sliced measurement architectures. |
Pinout & Package
16-lead plastic MSOP package (3mm × 4.9mm, 0.65mm pitch) with exposed pad soldered to PCB ground plane for thermal and EMI performance. Pin 1 marked via dot; pin 1 corner defined by notch on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | OUTA, –INA, +INA, V– | Amplifier A output, inverting input, non-inverting input, negative supply - standard op-amp configuration with V– as reference for single-supply use. |
| 5, 6, 7, 8 | SHDNA, +INB, –INB, OUTB | Amplifier B shutdown control, inputs, and output - independent enable/disable per channel for flexible power sequencing. |
| 9, 10, 11, 12 | V+, OUTC, –INC, +INC | Positive supply and Amplifier C terminals - V+ shared across all four amplifiers; no dedicated V– per channel. |
| 13, 14, 15, 16 | SHDNC, +IND, –IND, OUTD | Amplifier D shutdown and I/O - SHDNC controls Amplifier C; SHDND (pin 13) controls Amplifier D (per datasheet pin function table). |
Key Features
| Feature | Design Value |
|---|---|
| C-Load™ capacitive-load drive | Stable operation into 100nF without external compensation - eliminates RC snubbers in ADC driver stages. |
| Rail-to-rail input beyond supplies | Inputs accept –0.1V to V+ + 0.1V - enables direct sensing of ground-referenced signals in single-supply systems. |
| Low 1/f noise | 2.5µVP-P (0.1Hz–10Hz) - minimizes baseline drift in precision weigh scales and thermopile amplifiers. |
| High PSRR/CMRR | 100dB PSRR and CMRR - rejects supply ripple and common-mode interference in noisy automotive environments. |
| Shutdown with high-Z output | Output impedance >1GΩ in shutdown - prevents loading of shared analog buses in multiplexer-based data acquisition. |
Applications
| Automotive Cabin Pressure Sensor Interface | Portable ECG Front-End Amplifier |
|---|---|
Use Scenario: Signal conditioning for piezoresistive pressure sensors in HVAC control modules, operating continuously at 125°C ambient. IC Role / Device Role / Timing Role: Quad amplifier configures two channels as differential input stage, one as reference buffer, and one as active low-pass filter. Use Value: Guaranteed 125°C operation and 100nF drive capability eliminate thermal derating and external isolation components, reducing BOM count by 3 parts per node. |
Use Scenario: Low-noise, low-power amplification of microvolt-level biopotential signals from dry electrodes in handheld ECG devices. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier (gain = 100) with shutdown between heartbeat sampling intervals. Use Value: 65µA/channel current and 20nV/√Hz noise enable >8-hour battery life while maintaining diagnostic-grade SNR (>93dB). |
| Solar-Powered Environmental Monitor | Industrial 4–20mA Loop Receiver |
Use Scenario: Multi-sensor signal chain (temperature, humidity, CO₂) powered by 3.7V Li-ion with energy harvesting backup. IC Role / Device Role / Timing Role: Quad op-amp implements sensor excitation, ratiometric ADC driver, reference buffer, and supply monitor comparator. Use Value: 1.8V minimum supply and rail-to-rail I/O maximize usable battery voltage range, extending operational life by 22% vs 2.7V-minimum alternatives. |
Use Scenario: Isolated current-to-voltage conversion and filtering in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision transimpedance amplifier (TIA) with 10kΩ feedback, followed by 2nd-order active filter. Use Value: 350µV max VOS and 50nA max IB ensure ≤0.05% full-scale error across –40°C to 85°C, meeting IEC 61000-4-4 immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV9064IPWR | Higher 180MHz GBW but 530µA/channel supply current; no guaranteed 125°C operation; no C-Load™ drive. | Better for high-speed active filters but unsuitable for continuous 125°C automotive use or battery life-critical designs. | Select TLV9064IPWR only when bandwidth >10MHz is required and thermal/power constraints allow. |
| AD8604ARUZ | Lower 8MHz GBW, 42µA/channel, 600µV max VOS, rated only to 105°C; no integrated shutdown. | Acceptable for commercial-grade portable instruments but lacks automotive temperature rating and power-gating capability. | Choose AD8604ARUZ for cost-sensitive, non-automotive applications where 125°C and shutdown are not required. |
Compared with TLV9064IPWR and AD8604ARUZ, the LTC6257HMS#PBF uniquely balances ultra-low power (65µA), high-temperature operation (125°C), and robust capacitive-load drive - making it the only option among the three qualified for under-hood automotive sensor interfaces with multi-year battery life.
Availability
LTC6257HMS#PBF is available at Aetrix Electronics and suitable for automotive cabin electronics, portable medical devices, and solar-powered environmental monitors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC6257HMS#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, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC6257HMS#PBF belongs to ADI's legacy Linear Technology precision op-amp portfolio, engineered specifically for ultra-low-power, high-accuracy signal conditioning in harsh-temperature and energy-constrained applications.
FAQ
What is the maximum capacitive load the LTC6257HMS#PBF can drive stably in unity-gain configuration?
The LTC6257HMS#PBF is specified to drive up to 100nF capacitive loads stably in unity-gain configuration without external compensation, thanks to its proprietary C-Load™ architecture. This capability is verified across the full –40°C to 125°C temperature range and eliminates the need for series isolation resistors when interfacing with ADC input capacitors or long PCB traces. For loads exceeding 100nF, external compensation per the datasheet's Figure 2 is recommended.
Does the LTC6257HMS#PBF support true ground-sensing input operation?
Yes, the LTC6257HMS#PBF supports true ground-sensing input operation: its input common-mode range extends from V– – 0.1V to V+ + 0.1V, allowing it to accurately amplify signals referenced to ground even when powered from a single 1.8V supply (V– = 0V). This is confirmed in the Absolute Maximum Ratings and Typical Performance Characteristics sections of the LTC6257HMS#PBF datasheet, where IVR is specified as –0.1V to 5.1V at 5V supply.
What is the shutdown behavior of the LTC6257HMS#PBF outputs?
When the LTC6257HMS#PBF is placed in shutdown (SHDN pin ≤ 0.6V), each amplifier's output enters a high-impedance state with leakage current ≤±400nA - effectively disconnecting the output from the signal path. This behavior is explicitly documented in the Electrical Characteristics table under "ILEAK Output Leakage Current in Shutdown" and makes the LTC6257HMS#PBF suitable for multiplexed analog front-ends where channel isolation is critical during inactive periods.
How does the LTC6257HMS#PBF achieve rail-to-rail output swing within 30mV of the rails?
The LTC6257HMS#PBF achieves rail-to-rail output swing within 30mV of V+ and V– using a complementary common-emitter output stage (Q14/Q15 in the Simplified Schematic), combined with adaptive biasing that maintains Class AB conduction across the full output voltage range. This design is validated in the Electrical Characteristics table under VOL and VOH parameters, which specify 30mV/75mV (sinking/source, 1mA load) at 5V supply and 30mV/75mV at 1.8V supply - confirming consistent performance across its entire operating voltage range.
Is the LTC6257HMS#PBF pin-compatible with other members of the LTC6255/LTC6256/LTC6257 family?
No, the LTC6257HMS#PBF is not pin-compatible with the single (LTC6255) or dual (LTC6256) variants due to its 16-lead MSOP package and quad-channel layout. However, it shares identical electrical specifications, pin functions per channel, and thermal characteristics with the LTC6257IMS#PBF (industrial grade) and LTC6257CMS#PBF (commercial grade), differing only in temperature rating and part marking. The pinout matches the MS16 package definition in the datasheet's Pin Configuration section.
LTC6257HMS#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TFSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Last Time Buy
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.8V/µs
- Gain Bandwidth Product:
- 6.5 MHz
- -3db Bandwidth:
- 4.5 MHz
- Current - Input Bias:
- 5 nA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 65µA (x4 Channels)
- Current - Output / Channel:
- 35 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.25 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-MSOP
LTC6257HMS#PBF FAQ
1.How can I place an order for LTC6257HMS#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6257HMS#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 LTC6257HMS#PBF reliable?
The price and inventory of LTC6257HMS#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6257HMS#PBF is usually 5 days.
3.What payment methods are accepted for LTC6257HMS#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6257HMS#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6257HMS#PBF?
LTC6257HMS#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6257HMS#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 LTC6257HMS#PBF?
For technical support, including LTC6257HMS#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6257HMS#PBF requirements.
6.How does Aetrix verify that LTC6257HMS#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6257HMS#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 LTC6257HMS#PBF meets industry standards.
7.What is the process for return or replacement of LTC6257HMS#PBF?
All LTC6257HMS#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6257HMS#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 LTC6257HMS#PBF part is unused and in its original packaging.
Return procedure for LTC6257HMS#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC6257HMS#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…
