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Analog Devices Inc. LT6012CGN#PBF
- Part No.:
- LT6012CGN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LT6012CGN#PBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:924
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Product details
Overview
LT6012CGN#PBF from Analog Devices (formerly Linear Technology) is a quad rail-to-rail output precision operational amplifier optimized for low-noise, low-power, high-accuracy signal conditioning. It delivers 14nV/√Hz input voltage noise, <60µV max input offset voltage (0°C to 70°C), 135µA supply current per amplifier, and rail-to-rail output swing within 40mV of either supply rail on 5V single supply. It is widely used in thermocouple amplifiers and battery-powered precision sensor front-ends.
For engineers reviewing the LT6012CGN#PBF datasheet, LT6012CGN#PBF pinout, LT6012CGN#PBF application, or LT6012CGN#PBF equivalent, key selection criteria include guaranteed 0°C to 70°C operation, 16-pin SSOP (GN) package compatibility, quad-channel matching performance (e.g., ∆VOS ≤ 170µV), and support for 2.7V to 36V supply range with ±15V dual-supply capability.
Technical Context
The LT6012CGN#PBF integrates four matched precision op amps sharing a common die, enabling high channel-to-channel consistency in instrumentation-grade applications. Its input stage uses precision-trimmed bipolar circuitry with on-chip cancellation to achieve sub-300pA max input bias current and 0.8µV/°C max VOS drift - critical for stable DC gain over temperature.
It features internal 500Ω series input resistors and back-to-back diodes for ±10V differential input protection, while maintaining 120dB min open-loop voltage gain (VS = ±15V) and 250kHz gain-bandwidth product. The rail-to-rail output stage supports low-voltage single-supply operation without sacrificing dynamic range or settling accuracy (45µs to 0.01%).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 36V single supply or ±1.35V to ±18V dual supply - enables direct interface with Li-ion batteries and industrial 24V rails. |
| Input Offset Voltage (0°C–70°C) | ≤60µV max - ensures ≤0.12% error at 50mV full-scale in precision current-sense applications. |
| Input Bias Current | ±300pA max - allows use with >10MΩ feedback networks without significant DC error. |
| Input Voltage Noise Density | 14nV/√Hz at 1kHz - preserves SNR in low-level sensor amplification (e.g., photo-diode, strain gauge). |
| Output Swing (5V supply) | Within 40mV of V+ and V− - delivers >4.9Vpp dynamic range from 5V rail, minimizing headroom loss. |
| Gain Bandwidth Product | 250kHz typical - supports stable closed-loop gain ≥10 up to ~25kHz for anti-aliasing or filtering. |
| Channel Separation | ≥110dB - prevents crosstalk-induced measurement error in multi-channel data acquisition systems. |
Pinout & Package
LT6012CGN#PBF is housed in a 16-lead plastic SSOP (GN) package, 0.150-inch narrow body, with exposed pad not connected internally. Pin 1 is marked by a dot or beveled corner at top-left when viewed from top with pin 1 identifier oriented left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load; rail-to-rail capable with 1mA sink/source capability. |
| 2 | –IN A | Inverting input of Amp A - high-impedance node; requires guard ring in high-Z PCB layouts. |
| 3 | +IN A | Non-inverting input of Amp A - matches –IN A in offset and bias current for precision differential use. |
| 4 | V+ | Positive supply rail - accepts 2.7V to 36V or +18V in dual-supply mode; decoupling required. |
| 5 | +IN B | Non-inverting input of Amp B - electrically isolated but thermally coupled to other channels for matching. |
| 6 | –IN B | Inverting input of Amp B - shares same input structure and trimming as Amp A for ∆VOS ≤ 170µV. |
| 7 | OUT B | Amplifier B output - identical AC/DC specs to OUT A; supports independent closed-loop configuration. |
| 8 | NC | No connect - internal die bond wire unused; must remain unconnected on PCB. |
| 9 | OUT D | Amplifier D output - fourth channel; pin-compatible with OUT A/B/C for layout reuse in quad designs. |
| 10 | –IN D | Inverting input of Amp D - matched to other inputs for multichannel calibration without per-channel trim. |
| 11 | +IN D | Non-inverting input of Amp D - supports simultaneous 4-channel sensor buffering with consistent VOS drift. |
| 12 | V– | Negative supply rail - connects to ground (single supply) or –18V (dual supply); return path for all quads. |
| 13 | +IN C | Non-inverting input of Amp C - enables synchronous sampling across four analog channels. |
| 14 | –IN C | Inverting input of Amp C - maintains same CMRR (107dB min) and PSRR (112dB min) as other channels. |
| 15 | OUT C | Amplifier C output - completes quad set; supports 4-channel instrumentation amplifier front-end configurations. |
| 16 | NC | No connect - unused terminal; no internal connection; leave floating or tie to V– if mechanical stability needed. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full dynamic range from low-voltage supplies (e.g., 3.3V or 5V) without clipping near rails. |
| Low 135µA per-amplifier supply current | Enables always-on precision sensing in energy-constrained IoT nodes and portable medical devices. |
| 14nV/√Hz input voltage noise | Preserves signal integrity in µV-level transducer interfaces (e.g., thermocouples, RTDs, piezoresistive sensors). |
| Guaranteed 0°C to 70°C performance | Provides production-ready accuracy without extended temperature screening - reduces test cost and lead time. |
| Quad-channel matching (∆VOS ≤ 170µV) | Supports multi-channel differential measurements without per-channel calibration overhead. |
| Internal 500Ω input series resistors | Protects against ±10V differential overvoltage without external components - simplifies robust front-end design. |
Applications
| Thermocouple Amplifiers | Precision Photo-Diode Amplifiers |
|---|---|
|
Use Scenario: Amplifying µV-level Seebeck voltages from K-type thermocouples in HVAC and industrial process control. IC Role / Device Role / Timing Role: Precision DC-coupled transimpedance and gain stage with low thermal EMF inputs. Use Value: Sub-60µV offset and 0.8µV/°C drift ensure <±0.5°C measurement accuracy over 0–70°C ambient range. |
Use Scenario: Converting picoamp-level photocurrent from scientific-grade photodiodes into measurable voltage. IC Role / Device Role / Timing Role: Low-bias-current transimpedance amplifier with guarded input and low 1/f noise. Use Value: 300pA max IB avoids signal corruption; 14nV/√Hz noise enables >100dB dynamic range at 1kHz. |
| Instrumentation Amplifier Front-Ends | Battery-Powered Precision Systems |
|
Use Scenario: Buffering differential sensor outputs (e.g., bridge-based pressure sensors) before programmable-gain stages. IC Role / Device Role / Timing Role: Matched quad amplifier providing unity-gain buffers for IN+, IN−, REF+, REF− paths. Use Value: Channel matching (≤170µV ∆VOS) eliminates inter-channel gain/offset errors in 24-bit delta-sigma ADC systems. |
Use Scenario: Signal conditioning in handheld multimeters, portable gas analyzers, and wearable biosensors. IC Role / Device Role / Timing Role: Low-power, rail-to-rail I/O op amp enabling full-scale utilization of 3.3V ADC references. Use Value: 135µA per amp extends AA/AAA battery life to >1 year in continuous-sampling mode at 10SPS. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT6012IGN#PBF | Same quad architecture and GN package, but specified for –40°C to 85°C operation with higher max VOS (85µV). | Required for automotive under-hood or outdoor industrial deployments where extended temperature range is mandatory. | Select LT6012IGN#PBF only when full industrial temperature qualification is needed; LT6012CGN#PBF offers tighter VOS at lower cost for commercial environments. |
| OPA2189IDR | Single-supply zero-drift op amp (2-channel), 5.6nV/√Hz noise, 0.005µV/°C drift, but 175µA per amp and SOIC-8 package. | Lacks quad integration and rail-to-rail output swing; better for ultra-low-drift single-channel apps, not multichannel matching. | Choose OPA2189IDR when nanovolt-level drift dominates system error budget; avoid when quad channel count or output swing is critical. |
Compared with LT6012IGN#PBF, LT6012CGN#PBF trades extended temperature coverage for superior offset voltage spec and lower unit cost; compared with OPA2189IDR, it provides integrated quad topology and rail-to-rail output at the expense of zero-drift architecture - making it optimal for cost-sensitive, multi-channel, moderate-drift precision systems.
Availability
LT6012CGN#PBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, precision photo-diode amplifiers, instrumentation amplifier front-ends, battery-powered precision systems, and low-voltage industrial sensor interfaces requiring stable component supply across long production lifecycles.
Supply support for LT6012CGN#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 LT6012CGN#PBF belongs to ADI's legacy Linear Technology precision op amp family, engineered specifically for low-noise, low-power, high-accuracy DC and low-frequency signal conditioning in space-constrained, battery-aware systems.
FAQ
What is the maximum input common-mode voltage range for LT6012CGN#PBF?
The LT6012CGN#PBF input stage operates between V– + 1V and V+ – 1.2V. For example, on a 5V single supply (V+ = 5V, V– = 0V), the valid input common-mode range is 1V to 3.8V. Exceeding this range causes gain collapse but no phase reversal. This limitation is explicitly defined in the datasheet's "Input Common Mode Range" section and confirmed across all operating conditions.
Does LT6012CGN#PBF support rail-to-rail input operation?
No, LT6012CGN#PBF does not support rail-to-rail input operation. Its input common-mode range is limited to V– + 1V to V+ – 1.2V, as verified in the Absolute Maximum Ratings and Applications Information sections. However, its rail-to-rail output swing remains fully functional, making it ideal for non-inverting and inverting configurations where inputs remain within the specified window - such as buffered reference generation or transimpedance amplification.
What is the typical supply current per amplifier for LT6012CGN#PBF at 5V?
The LT6012CGN#PBF draws 135µA per amplifier at 5V supply, as specified in the Electrical Characteristics table under "IS Supply Current per Amplifier" for TA = 0°C to 70°C. This value is confirmed across multiple test conditions and represents the nominal quiescent current - critical for calculating total system power in quad-channel implementations.
Can LT6012CGN#PBF drive capacitive loads, and if so, up to how much?
Yes, LT6012CGN#PBF can drive up to 500pF capacitive loads in unity-gain configuration, as stated in the "Capacitive Loads" subsection of the Applications Information. Stability improves with higher closed-loop gain, and adding a small series resistor (e.g., 10–50Ω) between output and load further enhances phase margin - a verified layout technique documented in the datasheet's application notes.
Is LT6012CGN#PBF pin-compatible with other LT6012 variants in GN package?
Yes, LT6012CGN#PBF is pin-compatible with all other LT6012 variants offered in the 16-lead GN (SSOP) package, including LT6012IGN#PBF, LT6012ACGN#PBF, and LT6012AIGN#PBF. The pinout, footprint, and solder pad layout are identical across these variants - only temperature grade, offset voltage, and drift specifications differ. This allows drop-in replacement during design-in or qualification rework.
LT6012CGN#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.11V/µs
- Gain Bandwidth Product:
- 350 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 20 pA
- Voltage - Input Offset:
- 35 µV
- Current - Supply:
- 135µA (x4 Channels)
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
LT6012CGN#PBF FAQ
1.How can I place an order for LT6012CGN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6012CGN#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 LT6012CGN#PBF reliable?
The price and inventory of LT6012CGN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6012CGN#PBF is usually 5 days.
3.What payment methods are accepted for LT6012CGN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6012CGN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6012CGN#PBF?
LT6012CGN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6012CGN#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 LT6012CGN#PBF?
For technical support, including LT6012CGN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6012CGN#PBF requirements.
6.How does Aetrix verify that LT6012CGN#PBF is sourced from the original manufacturer or authorized distributors?
All LT6012CGN#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 LT6012CGN#PBF meets industry standards.
7.What is the process for return or replacement of LT6012CGN#PBF?
All LT6012CGN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6012CGN#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 LT6012CGN#PBF part is unused and in its original packaging.
Return procedure for LT6012CGN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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