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Analog Devices Inc. LT1215CS8#PBF
- Part No.:
- LT1215CS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1215CS8#PBF.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:402
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Product details
Overview
LT1215CS8#PBF from Analog Devices (formerly Linear Technology) is a dual, single-supply precision operational amplifier featuring 23MHz gain-bandwidth product, 50V/µs slew rate, and rail-to-rail output swing to ground while sinking current. It delivers 30mA minimum output drive, 12.5nV/√Hz input voltage noise, and operates from 2.5V to 36V total supply. It is used in high-accuracy, high-speed signal conditioning for battery-powered instrumentation and DAC current-to-voltage conversion.
For engineers reviewing the LT1215CS8#PBF datasheet, LT1215CS8#PBF pinout, LT1215CS8#PBF application, or LT1215CS8#PBF equivalent, key selection criteria include guaranteed DC precision (450µV max VOS, 10µV/°C drift) across –40°C to 85°C, fast 250ns settling to 0.01% on 2V step, and SO-8 package compatibility with single-supply systems requiring ground-referenced inputs and outputs.
Technical Context
The LT1215CS8#PBF employs a proprietary bipolar input stage enabling wide input common-mode range (including ground) and low input bias current (600nA max), combined with a high-speed complementary output stage delivering ±30mA drive capability. Its architecture supports stable operation with capacitive loads up to 1000pF without external compensation.
It is fully specified at 3.3V, 5V, and ±15V supplies, with open-loop gain ≥1000V/mV (min) and PSRR ≥93dB over full temperature range. Input offset voltage drift is characterized per package type, with SO-8 variants exhibiting ≤10µV/°C max over –40°C to 85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 23MHz typical - enables stable unity-gain operation up to 23MHz or closed-loop bandwidth of ~11.5MHz at gain=2. |
| Slew Rate | 50V/µs typical - supports clean 10Vpp output at >1MHz without slewing distortion. |
| Input Offset Voltage | 450µV maximum - ensures ≤0.75 LSB error in 2.5V full-scale 12-bit systems. |
| Supply Current per Amp | 6.6mA maximum - allows dual-channel operation under 13.2mA total, suitable for low-power portable designs. |
| Output Drive Current | ±30mA minimum - directly drives 500Ω loads or 100pF+ cables without buffer stages. |
| Input Voltage Noise | 12.5nV/√Hz at 1kHz - preserves SNR in precision sensor front-ends and low-level signal amplification. |
| Common-Mode Range | Includes V– (ground) - enables true single-supply operation with ground-referenced sensors and ADC drivers. |
Pinout & Package
LT1215CS8#PBF is housed in an 8-lead plastic SOIC (SO-8) package with standard JEDEC MS-012AC footprint, 1.27mm pitch, and 4.9mm × 6.0mm body size. Thermal resistance θJA = 150°C/W in still air.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Capable of sourcing/sinking ≥30mA; swings to within 630mV of V– when sinking 30mA. |
| 2 (–IN A) | Inverting input A | High-impedance node (≥10MΩ); accepts common-mode voltages from V– to V+–1.5V. |
| 3 (+IN A) | Non-inverting input A | Matches –IN A characteristics; supports rail-to-rail input operation including ground reference. |
| 4 (V–) | Negative supply / ground | Reference for single-supply operation; output sinks current to this pin down to 0.63V above it. |
| 5 (V+) | Positive supply | Accepts 2.5V to 18V (single) or ±1.7V to ±18V (split); bypass with 0.01µF + 4.7µF for stability. |
| 6 (OUT B) | Amplifier B output | Electrically identical to OUT A; independent channel with 128dB channel separation at 1kHz. |
| 7 (–IN B) | Inverting input B | Matched to –IN A; enables dual-channel instrumentation or active filter topologies. |
| 8 (+IN B) | Non-inverting input B | Provides second precision input path; supports differential pair configurations with matched VOS tracking. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-ground output swing | Outputs sink current to within 0.005V of V– (no load) and 0.63V (30mA sink), enabling true single-supply interfacing with ADCs and logic. |
| Single-supply optimized input stage | Inputs operate from V– to V+–1.5V, allowing direct connection to ground-referenced transducers without level-shifting circuitry. |
| Low-noise, high-speed precision | 12.5nV/√Hz voltage noise + 0.5pA/√Hz current noise at 1kHz supports high-resolution sensor signal chains up to 23MHz. |
| Guaranteed performance over temperature | Specified for –40°C to +85°C with 450µV max VOS and 10µV/°C max drift - eliminates trimming in industrial-grade instrumentation. |
| Robust input protection | Inputs tolerate voltages beyond supplies (±15mA absolute max) without phase reversal or damage, simplifying front-end surge handling. |
Applications
| Photo Diode Amplifier | DAC Current-to-Voltage Converter |
|---|---|
Use Scenario: Converting weak, high-impedance photocurrent (pA–nA) from silicon photodiodes into precise voltage signals for optical sensing. IC Role / Device Role / Timing Role: Transimpedance amplifier with low input bias current (600nA max) and ultra-low input voltage noise (12.5nV/√Hz) to maximize SNR. Use Value: Enables sub-100nA current resolution in medical pulse oximetry and analytical spectrophotometers without external guard traces or cooling. | Use Scenario: Converting unidirectional DAC output current (e.g., from multiplying DACs or current-output DACs) into accurate, buffered voltage for analog control loops. IC Role / Device Role / Timing Role: Precision I-to-V converter with 450µV max input offset ensuring <0.75 LSB error in 12-bit 2.5V full-scale systems. Use Value: Eliminates trimming in motor control feedback, programmable power supply references, and automated test equipment calibration paths. |
| Battery-Powered Instrumentation | Active Filter Stage |
Use Scenario: Signal conditioning in portable multimeters, handheld oscilloscopes, and field-deployable data loggers operating from 3.3V or 5V batteries. IC Role / Device Role / Timing Role: Dual-channel precision op amp supporting both sensor front-end amplification and reference buffering in compact layouts. Use Value: 6.6mA max supply current per amplifier enables >100-hour operation on AA cells while maintaining 250ns settling time for fast sampling. | Use Scenario: Implementing high-Q, low-distortion active filters (e.g., 4th-order Butterworth) in audio processing, anti-aliasing, and communication channel equalization. IC Role / Device Role / Timing Role: High-slew-rate (50V/µs), low-THD (0.001%) amplifier driving reactive feedback networks with minimal phase shift. Use Value: Supports filter corner frequencies up to 2.6MHz (full-power bandwidth) with <0.01% settling, critical for ultrasound imaging and high-speed data acquisition. |
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 |
|---|---|---|---|
| LT1215CN8 | Same core specs but in 8-lead PDIP package; θJA = 100°C/W vs 150°C/W for SO-8; wider lead spacing eases prototyping. | Preferred for breadboard evaluation, through-hole production, or higher thermal margin at lower ambient temperatures. | Select when manual assembly, thermal headroom >70°C ambient, or legacy DIP footprint compatibility is required. |
| OPA2333AIDR | Zero-drift architecture (0.02µV/°C drift vs 10µV/°C); lower VOS (10µV max) but slower GBW (350kHz) and slew rate (0.16V/µs). | Better for ultra-stable DC-coupled applications (e.g., weigh scales) where speed is secondary to long-term drift. | Choose only if microvolt-level DC stability outweighs need for MHz-range bandwidth or fast settling. |
Compared with LT1215CN8, the LT1215CS8#PBF offers surface-mount compatibility and higher thermal resistance for space-constrained PCBs, while OPA2333AIDR trades raw speed for near-zero drift-making LT1215CS8#PBF optimal for mixed-signal systems demanding both precision and bandwidth.
Availability
LT1215CS8#PBF is available at Aetrix Electronics and suitable for battery-powered instrumentation, DAC current-to-voltage conversion, and active filter design requiring stable component supply across industrial temperature ranges.
Supply support for LT1215CS8#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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LT1215 product line was designed by Linear Technology specifically for high-speed, single-supply precision amplification-targeting applications where traditional op amps compromise between speed, accuracy, and rail-to-rail operation.
FAQ
What is the maximum supply voltage for LT1215CS8#PBF in single-supply operation?
The LT1215CS8#PBF supports total supply voltages from 2.5V to 36V. In single-supply mode, V+ may be up to 36V with V– grounded. However, thermal limits constrain practical use: at 125°C ambient, maximum recommended single supply is 15.7V (per datasheet Table on page 13) to maintain junction temperature ≤150°C in SO-8 package.
Does LT1215CS8#PBF support rail-to-rail input and output?
The LT1215CS8#PBF supports rail-to-rail output swing to ground (V–) while sinking current, and its inputs operate from V– to V+–1.5V - meaning it includes ground in the common-mode range but does not swing fully to V+. It is not a full rail-to-rail input/output (RRIO) device, but its ground-referenced capability makes it ideal for single-supply systems interfacing with ground-based sensors.
What is the guaranteed input offset voltage drift for LT1215CS8#PBF over temperature?
The LT1215CS8#PBF has a maximum input offset voltage drift of 10µV/°C over the –40°C to +85°C operating temperature range, as confirmed in the "PACKAGE" summary table (page 4) and electrical characteristics tables for SO-8 packaged devices. This value applies specifically to the CS8 variant and is tighter than the MJ8 ceramic version's 5µV/°C spec.
Can LT1215CS8#PBF drive a 500Ω load at ±10V output swing?
No - the LT1215CS8#PBF cannot sustain ±10V output swing into 500Ω. At ±15V supplies, its output swing is limited to ±13.5V (high) and ±14.4V (low) when sinking/sourcing 30mA. Into 500Ω, maximum undistorted output is ~±7.5V (see page 13 power dissipation example). For ±10V into 500Ω, a higher-output-current amplifier like LT1361 is recommended.
Is LT1215CS8#PBF pin-compatible with other dual op amps in SO-8 packages?
The LT1215CS8#PBF uses the industry-standard SO-8 pinout for dual op amps (pin 1=OUT A, pin 2=–IN A, pin 3=+IN A, pin 4=V–, pin 5=V+, pin 6=OUT B, pin 7=–IN B, pin 8=+IN B), matching LM358, TL072, and OPA2333 families. However, electrical behavior (speed, noise, supply range) differs significantly - direct substitution requires validation of bandwidth, settling, and supply requirements in the target circuit.
LT1215CS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 50V/µs
- Gain Bandwidth Product:
- 23 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 420 nA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 4.75mA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT1215CS8#PBF FAQ
1.How can I place an order for LT1215CS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1215CS8#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 LT1215CS8#PBF reliable?
The price and inventory of LT1215CS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1215CS8#PBF is usually 5 days.
3.What payment methods are accepted for LT1215CS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1215CS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1215CS8#PBF?
LT1215CS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1215CS8#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 LT1215CS8#PBF?
For technical support, including LT1215CS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1215CS8#PBF requirements.
6.How does Aetrix verify that LT1215CS8#PBF is sourced from the original manufacturer or authorized distributors?
All LT1215CS8#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 LT1215CS8#PBF meets industry standards.
7.What is the process for return or replacement of LT1215CS8#PBF?
All LT1215CS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1215CS8#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 LT1215CS8#PBF part is unused and in its original packaging.
Return procedure for LT1215CS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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