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Analog Devices Inc. LTC1152IN8#PBF
- Part No.:
- LTC1152IN8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LTC1152IN8#PBF.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1 CIRC 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,718
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Product details
Overview
LTC1152IN8#PBF from Analog Devices (formerly Linear Technology) is a precision zero-drift operational amplifier with rail-to-rail input and output, designed for high-accuracy DC-critical signal conditioning. It delivers 10 µV max input offset voltage, 100 nV/°C max offset drift, 115 dB min CMRR, 0.7 MHz gain-bandwidth product, and operates from 2.7 V to 14 V total supply. It is used in high-resolution data acquisition systems where stable low-drift amplification of near-rail signals is required.
For engineers reviewing the LTC1152IN8#PBF datasheet, LTC1152IN8#PBF pinout, LTC1152IN8#PBF application, or LTC1152IN8#PBF equivalent, key selection criteria include guaranteed rail-to-rail input common-mode range (beyond both rails), shutdown current ≤5 µA, C-Load™ capacitive drive capability, and compatibility with ±1.5 V to ±2.5 V dual supplies or 3 V to 5 V single supplies.
Technical Context
The LTC1152IN8#PBF employs an internal charge pump (4.7 MHz) to extend its input common-mode range beyond both supply rails-enabling true unity-gain buffering of 0 V to 5 V signals without feedback loop disruption. Its self-nulling architecture samples at 2.3 kHz to correct input offset in real time, achieving typical 1 µV offset and 10 nV/°C drift.
It integrates a dedicated shutdown pin (Pin 1) that reduces supply current to ≤5 µA and places the output in high-impedance state, supporting multiplexed configurations. The output stage maintains rail-to-rail swing into 1 kΩ loads and supports infinite capacitive loading via external compensation between COMP (Pin 5) and OUT (Pin 6).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±10 µV max - enables sub-mV error in precision sensor front-ends without trimming. |
| Offset Drift | ±100 nV/°C max - ensures <1 µV total drift over –40°C to +85°C industrial range. |
| CMRR | 115 dB min - rejects common-mode noise in high-gain transducer interfaces. |
| Supply Range | 2.7 V to 14 V total - supports single 3 V/5 V or dual ±1.5 V/±2.5 V operation. |
| Gain-Bandwidth | 0.7 MHz - sufficient for DC–100 Hz instrumentation with >60 dB closed-loop gain. |
| Shutdown Current | ≤5 µA - allows low-power wake-on-event architectures in battery-powered DAQ. |
| Input Noise (0.1–10 Hz) | 2 µVP-P - critical for low-frequency thermocouple and strain gauge amplification. |
Pinout & Package
Package: 8-lead PDIP (N8), 0.300-inch width, through-hole mounting. Pin 1 = SHDN, Pin 2 = –IN, Pin 3 = +IN, Pin 4 = V–, Pin 5 = COMP, Pin 6 = OUT, Pin 7 = V+, Pin 8 = CP. Standard op amp pinout enables drop-in replacement in legacy designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (SHDN) | Shutdown control input | CMOS-compatible logic input; pulls high internally; drives output to high-Z and cuts supply current to ≤5 µA when low. |
| Pin 2 (–IN) | Inverting input | Accepts signals from V– –0.3 V to V+ +0.3 V - enables high-side current sensing and rail-referenced inputs. |
| Pin 3 (+IN) | Non-inverting input | Same rail-to-rail common-mode range as –IN; supports true differential sensing across full supply range. |
| Pin 4 (V–) | Negative supply terminal | Connects to ground (single supply) or negative rail (dual supply); referenced by internal charge pump. |
| Pin 5 (COMP) | Compensation node | External capacitor (e.g., 0.1 µF to OUT) enables stable driving of unlimited capacitive loads and bandwidth limiting. |
| Pin 6 (OUT) | Amplifier output | Rail-to-rail swing into ≥1 kΩ; open-loop output resistance ≈140 Ω at 5 V supply. |
| Pin 7 (V+) | Positive supply terminal | Accepts up to 14 V total supply; powers internal charge pump and output stage. |
| Pin 8 (CP) | Charge pump output | Internally generates ~V+ + 2 V; optional 0.1 µF cap to V+ reduces 4.7 MHz feedthrough to negligible levels. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Extends 0.3 V beyond both rails - eliminates need for level-shifting in single-supply 0–5 V buffer applications. |
| C-Load™ capacitive drive | Stable with any load capacitance when compensated via Pin 5–6 - removes external isolation resistors in ADC driver stages. |
| Zero-drift architecture | Self-nulling at 2.3 kHz - maintains <1 µV typical offset and preserves CMRR/PSRR >120 dB at DC and low frequencies. |
| Integrated charge pump | No external components required - achieves rail-to-rail input without external bias networks or dual supplies. |
| Shutdown mode | Output high-Z + ≤5 µA supply current - enables multi-amplifier MUXing without external analog switches. |
Applications
| High-Resolution Data Acquisition | Rail-to-Rail Signal Buffering |
|---|---|
|
Use Scenario: Amplifying low-level outputs from 24-bit delta-sigma ADC reference buffers or thermopile sensors operating near supply rails. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with ultra-low drift and noise, placed directly before ADC input. Use Value: Maintains ENOB integrity by contributing <1 µV offset and <2 µVP-P 0.1–10 Hz noise - no calibration needed over temperature. |
Use Scenario: Unity-gain buffering of 0–5 V microcontroller DAC outputs into high-capacitance LCD bias or filter networks. IC Role / Device Role / Timing Role: Rail-to-rail voltage follower ensuring full dynamic range delivery without clipping or phase inversion. Use Value: Delivers 4.4 V swing into 1 kΩ at 5 V supply and drives >1 µF loads stably - eliminates output droop and settling errors. |
| High-Side Current Sensing | Low-Voltage Transducer Amplification |
|
Use Scenario: Measuring bidirectional current in 3.3 V or 5 V power rails using milliohm shunts placed between load and V+. IC Role / Device Role / Timing Role: Difference amplifier with inputs referenced to V+ and GND, rejecting common-mode voltage up to V+. Use Value: Input CMR includes V+ - enables direct connection to shunt top node without level shifters or attenuators. |
Use Scenario: Conditioning outputs from piezoresistive pressure sensors or bridge-based load cells powered from 3 V coin cells. IC Role / Device Role / Timing Role: Low-noise, low-drift instrumentation amplifier front-end operating from minimal supply headroom. Use Value: Operates down to 2.7 V total supply while maintaining 115 dB CMRR and 100 nV/°C drift - extends battery life and accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar zero-drift, rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8628ARZ | Lower 0.1–10 Hz noise (1.5 µVP-P), but narrower input CMR (to V+ – 0.1 V), no charge pump, no shutdown pin. | Preferred for ultra-low-noise DC amplification where rail-to-rail input is not required. | Select AD8628ARZ only if input signals stay ≥0.1 V below V+ and shutdown functionality is unnecessary. |
| LTC2050CS8#PBF | Wider supply range (2.7 V to 11 V), lower quiescent current (1.1 mA typ), but no shutdown pin and no CP pin for charge pump optimization. | Better suited for always-on, low-quiescent systems where input CMR beyond rails is not critical. | Choose LTC2050CS8#PBF for continuous-operation battery monitors where shutdown is not needed and V+ margin is adequate. |
Compared with AD8628ARZ and LTC2050CS8#PBF, the LTC1152IN8#PBF uniquely combines guaranteed rail-to-rail input (including V+), integrated shutdown, and C-Load™ drive - making it the only option for single-supply unity-gain buffering of full-rail signals with power-gating capability.
Availability
LTC1152IN8#PBF is available at Aetrix Electronics and suitable for high-precision data acquisition systems, rail-to-rail sensor signal conditioning, and low-voltage transducer amplification requiring stable component supply across extended temperature ranges.
Supply support for LTC1152IN8#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 semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC1152IN8#PBF belongs to ADI's legacy Linear Technology zero-drift op amp family, engineered specifically for DC-precision applications demanding ultra-low offset, near-zero drift, and rail-to-rail operation in space- and power-constrained systems.
FAQ
What is the operating temperature range for the LTC1152IN8#PBF?
The LTC1152IN8#PBF is specified for operation from –40°C to +85°C, qualifying it for industrial environments. This I-grade rating is confirmed in the Absolute Maximum Ratings table and Electrical Characteristics sections of the official datasheet, where all min/typ/max parameters are guaranteed across this full range unless otherwise noted.
Does the LTC1152IN8#PBF require external components for rail-to-rail input operation?
No, the LTC1152IN8#PBF does not require external components for rail-to-rail input operation. Its on-chip charge pump (Pin 8) generates the necessary internal voltage boost, enabling input common-mode range extension beyond both supply rails - a core feature explicitly stated in the device description and functional diagrams.
Can the LTC1152IN8#PBF drive large capacitive loads without oscillation?
Yes, the LTC1152IN8#PBF can drive arbitrarily large capacitive loads when externally compensated: connecting a 0.1 µF capacitor between Pin 5 (COMP) and Pin 6 (OUT) ensures stability with infinite capacitance. This C-Load™ capability is documented in the Applications section and Figure 3 of the datasheet.
What is the maximum output short-circuit current of the LTC1152IN8#PBF?
The LTC1152IN8#PBF provides indefinite output short-circuit protection per the Absolute Maximum Ratings table. Typical short-circuit current is ±40 mA at 14 V total supply (Figure 1152 G05), and the device sustains this without damage - a key reliability feature for fault-tolerant sensor interfaces.
How does the shutdown function affect the output impedance of the LTC1152IN8#PBF?
When the LTC1152IN8#PBF is in shutdown (Pin 1 low), its output enters a high-impedance state - verified in the Shutdown section, which states "the output enters a high impedance state" and demonstrates parallel MUX operation in Figure 1152 TA04. Output leakage remains ≤±100 nA, preserving system integrity during inactive periods.
LTC1152IN8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- C-Load™
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 700 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 1 µV
- Current - Supply:
- 2.2mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 14 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LTC1152IN8#PBF FAQ
1.How can I place an order for LTC1152IN8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1152IN8#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 LTC1152IN8#PBF reliable?
The price and inventory of LTC1152IN8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1152IN8#PBF is usually 5 days.
3.What payment methods are accepted for LTC1152IN8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1152IN8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1152IN8#PBF?
LTC1152IN8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1152IN8#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 LTC1152IN8#PBF?
For technical support, including LTC1152IN8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1152IN8#PBF requirements.
6.How does Aetrix verify that LTC1152IN8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1152IN8#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 LTC1152IN8#PBF meets industry standards.
7.What is the process for return or replacement of LTC1152IN8#PBF?
All LTC1152IN8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1152IN8#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 LTC1152IN8#PBF part is unused and in its original packaging.
Return procedure for LTC1152IN8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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