My Inquiry
My Account
Analog Devices Inc. LT1211ACN8#PBF
- Part No.:
- LT1211ACN8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LT1211ACN8#PBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,491
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT1211ACN8#PBF from Analog Devices (formerly Linear Technology) is a dual precision operational amplifier optimized for single-supply operation with 14MHz gain-bandwidth, 7V/µs slew rate, and 275µV max input offset voltage at 25°C. It operates from 2.5V to 36V total supply, delivers ±20mA output drive, and supports rail-to-rail input (including ground) and near-rail output swing-ideal for 12-bit DAC current-to-voltage conversion in battery-powered instrumentation.
For engineers reviewing the LT1211ACN8#PBF datasheet, LT1211ACN8#PBF pinout, LT1211ACN8#PBF application, or LT1211ACN8#PBF equivalent, key selection criteria include guaranteed 275µV VOS and 3µV/°C drift over –40°C to 85°C, low 12nV/√Hz input noise, and compatibility with 3.3V/5V/±15V supplies without performance degradation.
Technical Context
The LT1211ACN8#PBF implements a high-speed bipolar input stage with bias current cancellation, enabling low input offset current (30nA max) and stable DC precision across temperature. Its architecture supports fast settling (900ns to 0.01% on 2V step) while maintaining >105dB CMRR and >115dB PSRR at 5V supply.
It features internal compensation for unity-gain stability, operates with input common-mode voltage extending 0.3V below negative rail and 3.8V above it at 5V supply, and maintains ≥1200V/mV open-loop gain into 500Ω loads-enabling precision closed-loop configurations without external trimming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 14MHz typ - enables stable unity-gain buffers and 10x amplifiers up to 1.4MHz. |
| Slew Rate | 7V/µs typ - supports clean 10Vpp signals up to ~1.1MHz without slewing distortion. |
| Input Offset Voltage | 275µV max at 25°C - ensures ≤0.45LSB error in 2.5V full-scale 12-bit systems. |
| Input Offset Drift | 3µV/°C max - limits VOS shift to <240µV over –40°C to 85°C industrial range. |
| Supply Current per Amp | 1.8mA max - enables dual-channel precision amplification with <3.6mA total quiescent draw. |
| Output Drive | ±20mA min - directly drives 500Ω loads or 1000pF capacitive loads without external buffering. |
| Input Noise Density | 12nV/√Hz typ at 1kHz - preserves SNR in low-level sensor signal conditioning paths. |
Pinout & Package
LT1211ACN8#PBF is housed in an 8-lead plastic DIP (N8) package with 0.3-inch width, JEDEC MS-001 compliant footprint, and 100°C/W junction-to-ambient thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - capable of sourcing 20mA or sinking 20mA with <0.5V saturation at 15mA sink. |
| 2 | –IN A | Inverting input of Amp A - high-impedance node (≥10MΩ differential) with 0.2pA/√Hz noise current. |
| 3 | +IN A | Non-inverting input of Amp A - accepts common-mode voltages from –0.3V to +3.8V at 5V supply. |
| 4 | V– | Negative supply rail - must be bypassed with 0.01µF capacitor within 1 inch for stability. |
| 5 | V+ | Positive supply rail - supports single (2.5–36V) or split (±1.2–±18V) operation. |
| 6 | OUT B | Amplifier B output - electrically identical to Pin 1; channel separation >128dB at 10kHz. |
| 7 | –IN B | Inverting input of Amp B - independent of Amp A; no crosstalk in precision dual-channel designs. |
| 8 | +IN B | Non-inverting input of Amp B - fully isolated; enables dual feedback networks without interaction. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input capability | Accepts common-mode voltage down to V– – 0.3V, enabling true ground-referenced sensing on single 3.3V/5V supplies. |
| Low-noise bipolar input stage | 12nV/√Hz voltage noise + 0.2pA/√Hz current noise - optimal for photodiode transimpedance amps with >100dB dynamic range. |
| Guaranteed AC performance at 3.3V | 14MHz GBW and 7V/µs slew maintained at 3.3V supply - eliminates need for level-shifting in low-voltage embedded systems. |
| High-output-current drive | ±20mA minimum into resistive loads - replaces external driver stages in active filter and line-driver applications. |
| Stable on capacitive loads | Drives ≥1000pF without oscillation - simplifies layout in ADC buffer and cable-driving circuits. |
Applications
| Active Filters | DAC Current-to-Voltage Conversion |
|---|---|
Use Scenario: 4th-order Butterworth low-pass filter for anti-aliasing prior to 1Msps SAR ADC in portable medical sensor. IC Role / Device Role / Timing Role: Dual op-amp configured as two 2nd-order sections; one LT1211ACN8#PBF handles both stages with matched AC response. Use Value: 14MHz GBW ensures <0.1dB passband ripple to 100kHz; 7V/µs slew prevents distortion on fast transient inputs. | Use Scenario: Converting 0–2.5mA current output from 12-bit DAC to 0–2.5V voltage for analog front-end in battery-powered data logger. IC Role / Device Role / Timing Role: Precision I-to-V converter with 1kΩ feedback resistor; LT1211ACN8#PBF provides low VOS and drift to maintain 12-bit linearity. Use Value: 275µV max VOS contributes <0.45LSB error; 3µV/°C drift adds <0.38LSB over 85°C range - meets untrimmed 12-bit spec. |
| Photo Diode Amplifiers | Battery-Powered Systems |
Use Scenario: Transimpedance amplifier for 1mm² silicon photodiode in handheld spectrometer, requiring 100dB dynamic range. IC Role / Device Role / Timing Role: Single LT1211ACN8#PBF channel used as low-noise TIA; second channel buffers reference voltage. Use Value: 12nV/√Hz input voltage noise + 0.2pA/√Hz current noise minimizes total input-referred noise at 100kΩ feedback. | Use Scenario: Signal conditioning for thermistor and accelerometer in coin-cell-powered IoT node with 10-year battery life. IC Role / Device Role / Timing Role: Dual-channel amplifier: one for ratiometric sensor scaling, one for low-power comparator hysteresis generation. Use Value: 1.8mA max supply current per amp enables dual-channel precision at <4mA total - extends battery life vs. older precision op-amps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1211CN8#PBF | Higher 275µV max VOS and 6µV/°C drift vs. LT1211ACN8#PBF's 275µV/3µV/°C - same package and pinout. | Less suitable for 12-bit systems requiring <0.5LSB error over temperature; acceptable for 10-bit or room-temp-only use. | Select LT1211CN8#PBF only when cost sensitivity outweighs drift-critical performance; verify VOS distribution in production lot. |
| OP2177ARZ-REEL7 | Lower 60µV max VOS but slower 1.3MHz GBW and 0.7V/µs slew; SO-8 package, not DIP. | Unsuitable for high-speed filtering or fast-settling DAC buffers; better for ultra-precision DC-coupled sensors. | Choose OP2177ARZ-REEL7 only for sub-100kHz DC-stable applications where VOS dominates; avoid for >100kHz signal paths. |
Compared with LT1211CN8#PBF, LT1211ACN8#PBF offers half the offset drift for the same VOS ceiling, enabling tighter system accuracy over temperature; versus OP2177ARZ-REEL7, it trades ultra-low VOS for 10× higher bandwidth and 10× faster settling-making it superior for mixed-signal timing-critical roles.
Availability
LT1211ACN8#PBF is available at Aetrix Electronics and suitable for active filters, DAC current-to-voltage conversion, photo diode amplifiers, and battery-powered systems requiring stable component supply across industrial temperature ranges.
Supply support for LT1211ACN8#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 legacy precision analog portfolio with full datasheet, SPICE model, and application note support.
The LT1211 product line was designed for high-speed precision signal conditioning in single-supply embedded systems-balancing 14MHz bandwidth, low noise, and rail-to-rail input capability without sacrificing DC accuracy.
FAQ
What is the maximum operating temperature range for the LT1211ACN8#PBF?
The LT1211ACN8#PBF is specified for operation from –40°C to +85°C ambient temperature. This extended industrial range is guaranteed by characterization and testing, unlike the LT1211C grade which is only tested from 0°C to 70°C but characterized for the full –40°C to 85°C range. The LT1211ACN8#PBF's 3µV/°C max offset drift ensures predictable performance across this span.
Does the LT1211ACN8#PBF support true single-supply operation with input referenced to ground?
Yes, the LT1211ACN8#PBF supports true single-supply operation with input common-mode voltage extending to V– (ground), as confirmed by its 0V minimum input voltage specification at 5V supply. Its input stage allows signals from –0.3V to +3.8V, enabling direct connection of ground-referenced sensors without level-shifting circuitry - a key feature distinguishing LT1211ACN8#PBF from many older precision op-amps.
What is the typical output voltage swing for LT1211ACN8#PBF on a 5V single supply?
On a 5V single supply, the LT1211ACN8#PBF delivers a typical output swing of 4.40V high (at no load) and 0.006V low (at no load), meaning it swings within 60mV of ground and 600mV of V+. When sourcing 15mA, the high output drops to 4.00V; when sinking 15mA, the low rises to 0.500V - confirming robust drive capability into real-world loads without external buffers.
Can LT1211ACN8#PBF drive capacitive loads without instability?
Yes, the LT1211ACN8#PBF is designed to drive ≥1000pF capacitive loads without oscillation or excessive overshoot, as verified in typical performance graphs (e.g., Figure G12 showing <25% overshoot at 1000pF with AV = 1). This eliminates the need for isolation resistors in ADC input buffers or coaxial cable drivers - a critical advantage over many general-purpose op-amps that require external compensation.
How does the input bias current cancellation architecture benefit LT1211ACN8#PBF in high-impedance applications?
The LT1211ACN8#PBF uses internal bias current cancellation to achieve ≤30nA max input offset current and ≤125nA max input bias current - significantly lower than uncanceled bipolar op-amps. In high-impedance applications like photodiode TIAs with >1MΩ feedback, this reduces voltage errors and drift, preserving accuracy without requiring guard rings or complex PCB layout techniques. The LT1211ACN8#PBF's cancellation is inherent to its die design, not external circuitry.
LT1211ACN8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 7V/µs
- Gain Bandwidth Product:
- 14 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 45 nA
- Voltage - Input Offset:
- 125 µV
- Current - Supply:
- 1.8mA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LT1211ACN8#PBF FAQ
1.How can I place an order for LT1211ACN8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1211ACN8#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 LT1211ACN8#PBF reliable?
The price and inventory of LT1211ACN8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1211ACN8#PBF is usually 5 days.
3.What payment methods are accepted for LT1211ACN8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1211ACN8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1211ACN8#PBF?
LT1211ACN8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1211ACN8#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 LT1211ACN8#PBF?
For technical support, including LT1211ACN8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1211ACN8#PBF requirements.
6.How does Aetrix verify that LT1211ACN8#PBF is sourced from the original manufacturer or authorized distributors?
All LT1211ACN8#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 LT1211ACN8#PBF meets industry standards.
7.What is the process for return or replacement of LT1211ACN8#PBF?
All LT1211ACN8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1211ACN8#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 LT1211ACN8#PBF part is unused and in its original packaging.
Return procedure for LT1211ACN8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1211ACN8#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…
