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Analog Devices Inc. LTC1152CS8#PBF
- Part No.:
- LTC1152CS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LTC1152CS8#PBF.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1 CIRC 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:371
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Product details
Overview
LTC1152CS8#PBF from Analog Devices (formerly Linear Technology) is a rail-to-rail input/output zero-drift operational amplifier in an 8-pin SOIC package, featuring ±1 µV typical input offset voltage, 100 nV/°C max drift, and 0.7 MHz gain-bandwidth product. It operates from 2.7 V to 14 V total supply, includes a shutdown pin reducing supply current to 1 µA, and drives 1 kΩ loads with rail-to-rail swing - ideal for high-accuracy single-supply transducer amplification and precision current sensing.
For engineers reviewing the LTC1152CS8#PBF datasheet, LTC1152CS8#PBF pinout, LTC1152CS8#PBF application, or LTC1152CS8#PBF equivalent, key selection criteria include verified rail-to-rail CMR beyond both rails (±0.3 V), C-Load™ capacitive drive capability, internal charge pump operation at 4.7 MHz, shutdown-controlled high-impedance output, and guaranteed 115 dB min CMRR over temperature.
Technical Context
The LTC1152CS8#PBF uses a chopper-stabilized architecture with synchronized 2.3 kHz nulling clock and 4.7 MHz internal charge pump to achieve rail-to-rail input common-mode range extending 0.3 V beyond V+ and V–. Its front-end sampling eliminates crossover distortion and enables >130 dB PSRR and CMRR at DC.
Output stage design supports 10 mA sink/source into 1 kΩ while maintaining rail-to-rail swing; open-loop output resistance is 140 Ω at 5 V supply. Compensation via external capacitor on COMP pin (Pin 5) allows stable operation with infinite capacitive load when using 0.1 µF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±1 µV typical / ±10 µV max - enables sub-mV error in 12-bit+ data acquisition systems without trimming. |
| Offset Drift | ±10 nV/°C typical / ±100 nV/°C max - ensures <1 µV total drift over 0°C–70°C industrial range. |
| Supply Range | 2.7 V to 14 V total - supports single 3 V, 5 V, or dual ±2.5 V/±1.5 V supplies without level-shifting. |
| Gain-Bandwidth Product | 0.7 MHz - sufficient for anti-aliasing filters and sensor signal conditioning up to ~100 kHz. |
| CMRR | 115 dB min (G grade) - rejects common-mode noise in high-side current sensing with 0.01 Ω shunt. |
| Shutdown Current | 1 µA max - enables low-power multiplexing of multiple LTC1152CS8#PBF units on shared bus. |
| Input Noise (0.1–10 Hz) | 2 µVP-P - suitable for DC-coupled thermocouple and strain gauge amplifiers. |
Pinout & Package
Package: 8-lead plastic SOIC (S8), 150 mil width, JEDEC MS-012AC compliant, θJA = 200°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SHDN) | Shutdown control input | CMOS-compatible logic pin; pulls high internally (1 µA); sinking it to V– disables amplifier and forces high-Z output. |
| 2 (–IN) | Inverting input | Rail-to-rail common-mode range (V– – 0.3 V to V+ + 0.3 V); accepts signals at either supply rail. |
| 3 (+IN) | Non-inverting input | Identical rail-to-rail CMR as Pin 2; enables true unity-gain buffer from 0 V to V+. |
| 4 (V–) | Negative supply | Supports single-supply (ground reference) or dual-supply (±1.5 V to ±7 V) operation. |
| 5 (COMP) | Compensation node | External capacitor (e.g., 0.1 µF to OUT) enables infinite capacitive load drive and bandwidth limiting. |
| 6 (OUT) | Amplifier output | Rail-to-rail swing into 1 kΩ; modeled as 140 Ω series resistance at 5 V supply. |
| 7 (V+) | Positive supply | Accepts up to 14 V total supply; internal charge pump generates ~V+ + 2 V for input stage bias. |
| 8 (CP) | Charge pump output | Internally generated ~7.3 V (at 5 V supply); optional 0.1 µF cap to V+ reduces 4.7 MHz feedthrough. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input CMR beyond rails | Extends 0.3 V below V– and above V+, enabling direct amplification of signals at power rails (e.g., high-side current sense). |
| C-Load™ capacitive drive | Stable with any capacitive load via COMP pin compensation - eliminates need for isolation resistors in driving ADC inputs or cables. |
| Zero-drift architecture | Self-nulling at 2.3 kHz synchronizes with 4.7 MHz charge pump, minimizing beat frequencies and ensuring <1 µV offset across full CMR. |
| Shutdown mode | Drops supply current to 1 µA and places output in high-impedance state - enables hardware-selectable MUX of multiple LTC1152CS8#PBF units. |
| No external components required | Integrated charge pump, internal pull-up on SHDN, and rail-to-rail stages eliminate discrete biasing, level-shifting, or startup timing components. |
Applications
| High-Resolution Data Acquisition | Rail-to-Rail Transducer Buffer |
|---|---|
Use Scenario: Amplifying low-level outputs from 24-bit delta-sigma ADC reference buffers or thermopile sensors with sub-µV offset sensitivity. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with zero-drift correction and 2 µVP-P 0.1–10 Hz noise. Use Value: Maintains 16+ ENOB over temperature without calibration, leveraging ±1 µV typical VOS and 10 nV/°C drift. |
Use Scenario: Unity-gain buffering of 0–5 V industrial sensor outputs (e.g., pressure transducers) powered from single 5 V rail. IC Role / Device Role / Timing Role: Rail-to-rail input/output op amp eliminating clipping at V+ and V– during full-scale transitions. Use Value: Enables true 0–5 V signal fidelity without external level-shifting, thanks to CMR extending beyond rails by ±0.3 V. |
| High-Side Power Supply Current Sensing | Low-Voltage Precision Instrumentation |
Use Scenario: Measuring load current in battery-powered systems using 10 mΩ shunt resistor between VBAT and load. IC Role / Device Role / Timing Role: Differential amplifier with rail-to-rail input accepting common-mode voltage near VBAT (e.g., 3.3 V). Use Value: Achieves <100 nA input bias current and 115 dB CMRR to resolve µA-level errors in 100 mA measurements. |
Use Scenario: Signal conditioning for portable medical devices operating from single 3 V coin cell with strict power budget. IC Role / Device Role / Timing Role: Low-power zero-drift amplifier delivering 0.7 MHz GBW and 2.5 mA supply current at 3 V. Use Value: Supports 12-bit accuracy in ECG front-ends with <2 µVP-P noise and shutdown current <1 µA for duty-cycled operation. |
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 0.5 µV max VOS, but only 2.2 V to 36 V supply range; no integrated charge pump - limited CMR at low VS. | Preferred for ultra-low-offset designs >±5 V supply; unsuitable for 3 V rail-to-rail CMR applications. | Select AD8628ARZ when VOS < 0.5 µV is mandatory and supply ≥5 V; retain LTC1152CS8#PBF for 3 V operation with full rail coverage. |
| MCP6V81-E/SN | 1.8 V to 5.5 V supply only; 1.5 µV max VOS; no shutdown pin; 1 MHz GBW. | Optimized for ultra-low-voltage portable systems; lacks shutdown and charge pump - cannot drive rail-to-rail at VS = 3 V. | Choose MCP6V81-E/SN for cost-sensitive 3.3 V-only designs without shutdown requirement; LTC1152CS8#PBF remains superior for multi-supply flexibility and active power management. |
Compared with AD8628ARZ and MCP6V81-E/SN, the LTC1152CS8#PBF uniquely combines guaranteed rail-to-rail input beyond both rails at 2.7 V, integrated shutdown, and C-Load™ drive - making it the only option among the three supporting true 0–VS unity-gain buffering with <1 µA quiescent current in shutdown.
Availability
LTC1152CS8#PBF is available at Aetrix Electronics and suitable for high-accuracy instrumentation, single-supply transducer interfaces, and low-power multiplexed analog signal paths requiring stable component supply across industrial temperature ranges.
Supply support for LTC1152CS8#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 LTC1152CS8#PBF belongs to Linear's 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-constrained industrial and medical systems.
FAQ
What is the maximum capacitive load the LTC1152CS8#PBF can drive without external compensation?
The LTC1152CS8#PBF is unity-gain stable with capacitive loads up to 1000 pF without external components. For larger loads, a capacitor must be placed between COMP (Pin 5) and OUT (Pin 6): 1000 pF supports up to 1 µF, and 0.1 µF enables infinite capacitive load drive. This C-Load™ capability eliminates series isolation resistors in ADC driver or cable-driving applications.
Does the LTC1152CS8#PBF require external components for rail-to-rail input operation?
No. The LTC1152CS8#PBF integrates a 4.7 MHz internal charge pump that generates a boosted voltage (~V+ + 2 V) for its input stage, enabling rail-to-rail input common-mode range (extending ±0.3 V beyond V+ and V–) with no external capacitors or diodes required. A 0.1 µF capacitor from CP (Pin 8) to V+ (Pin 7) is optional to reduce 4.7 MHz feedthrough.
How does the shutdown feature of the LTC1152CS8#PBF affect output behavior?
When SHDN (Pin 1) is pulled low, the LTC1152CS8#PBF enters shutdown mode: supply current drops to 1 µA max, internal clocks halt, and the output enters a high-impedance state. This allows multiple LTC1152CS8#PBF units to share a common output bus as a hardware-multiplexed analog switch - with only the active unit driving the line.
What is the guaranteed input offset voltage specification for the LTC1152CS8#PBF over temperature?
The LTC1152CS8#PBF guarantees ±10 µV maximum input offset voltage over the full 0°C to 70°C operating temperature range (C-grade). At 25°C, typical VOS is ±1 µV, and average drift is ±100 nV/°C max - ensuring total offset error remains under ±1.7 µV across the industrial range when combined with initial trim.
Can the LTC1152CS8#PBF operate from a single 3 V supply while maintaining rail-to-rail input and output performance?
Yes. The LTC1152CS8#PBF operates from 2.7 V to 14 V total supply. At 3 V single supply, it delivers rail-to-rail output swing (2.0–2.5 V into 1 kΩ), rail-to-rail input CMR (0–3 V, extended to –0.3 V/+3.3 V), 0.5 MHz GBW, and 1.8–2.5 mA supply current - validated in the datasheet's "Electrical Characteristics" table for VS = 3 V conditions.
LTC1152CS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- C-Load™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LTC1152CS8#PBF FAQ
1.How can I place an order for LTC1152CS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1152CS8#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 LTC1152CS8#PBF reliable?
The price and inventory of LTC1152CS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1152CS8#PBF is usually 5 days.
3.What payment methods are accepted for LTC1152CS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1152CS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1152CS8#PBF?
LTC1152CS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1152CS8#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 LTC1152CS8#PBF?
For technical support, including LTC1152CS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1152CS8#PBF requirements.
6.How does Aetrix verify that LTC1152CS8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1152CS8#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 LTC1152CS8#PBF meets industry standards.
7.What is the process for return or replacement of LTC1152CS8#PBF?
All LTC1152CS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1152CS8#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 LTC1152CS8#PBF part is unused and in its original packaging.
Return procedure for LTC1152CS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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