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Analog Devices Inc. LT1352CS8
- Part No.:
- LT1352CS8
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1352CS8.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,842
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Product details
Overview
LT1352CS8 from Analog Devices (formerly Linear Technology) is a dual, low-power, high-speed operational amplifier in an 8-lead SOIC package. It delivers 3MHz gain bandwidth, 200V/µs slew rate, and 250µA supply current per amplifier at ±15V, enabling precision wideband signal conditioning in battery-powered instrumentation and photodiode preamplifiers.
For engineers reviewing the LT1352CS8 datasheet, LT1352CS8 pinout, LT1352CS8 application, or LT1352CS8 equivalent, key selection criteria include guaranteed –40°C to +85°C operation, C-Load™ stability with all capacitive loads, unity-gain stability, and verified performance across ±2.5V, ±5V, and ±15V supplies.
Technical Context
The LT1352CS8 employs a proprietary voltage-feedback topology that combines matched high-impedance inputs with current-feedback slewing behavior. Its input stage uses complementary NPN/PNP emitter followers to achieve first-order bias current cancellation, while the output stage integrates composite PNP/NPN transistors for robust drive into 500Ω loads.
Stability under capacitive loading is ensured by an internal bootstrapped RC–CC network that dynamically adds compensation capacitance and introduces a zero to maintain phase margin >30° across load conditions. The amplifier is specified with minimum DC open-loop gain of 20V/mV at ±15V into 1kΩ and 0.01% settling time of 1.25µs for a 10V step.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 3.0 MHz (typ) at ±15V - supports stable closed-loop designs up to 300kHz at AV = 10 without peaking |
| Slew Rate | 200 V/µs (max) at ±15V - enables full-swing 10V output transitions in ≤700ns with 0.1% accuracy |
| Supply Current per Amplifier | 380 µA (max) over –40°C to +85°C - enables dual-channel amplification in ultra-low-power systems |
| Input Offset Voltage | 1.0 mV (max) over –40°C to +85°C - ensures <10mV total error in 10V-range DC-coupled sensor interfaces |
| Output Swing into 1kΩ | ±10.0 V (min) at ±15V - delivers rail-to-rail usable dynamic range for ±12V signal chains |
| Input Noise Voltage | 14 nV/√Hz at 10kHz - maintains SNR >80dB in 100kHz-bandwidth photodiode preamps |
| Common-Mode Rejection Ratio | 76 dB (min) at ±12V common-mode - rejects power-supply ripple and EMI in single-supply derived rails |
Pinout & Package
LT1352CS8 is housed in an 8-lead plastic SOIC (SO-8) package with θJA = 190°C/W, optimized for surface-mount reliability and thermal management in compact PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Capable of ±10V swing into 1kΩ at ±15V supply; drives capacitive loads directly without external compensation |
| 2 (–IN A) | Inverting input A | Differential input voltage rating ±10V (transient only); requires balanced source impedance for optimal DC accuracy |
| 3 (+IN A) | Non-inverting input A | High-impedance node (≥300MΩ differential, ≥600MΩ common-mode); base of complementary NPN/PNP pair |
| 4 (V–) | Negative supply rail | Connects to system ground or negative rail; must be decoupled with 0.01µF–0.1µF ceramic capacitor near pin |
| 5 (V+) | Positive supply rail | Accepts ±2.5V to ±15V total supply; bypassing with 1µF tantalum recommended for high-current transient loads |
| 6 (+IN B) | Non-inverting input B | Electrically identical to Pin 3; independent channel with matched AC/DC specs to Amplifier A |
| 7 (–IN B) | Inverting input B | Electrically identical to Pin 2; channel separation ≥99dB ensures minimal crosstalk in dual-channel filtering |
| 8 (OUT B) | Amplifier B output | Functionally identical to Pin 1; supports independent gain configurations without interaction |
Key Features
| Feature | Design Value |
|---|---|
| C-Load™ stability | Guaranteed unity-gain stability driving any capacitive load - eliminates need for external isolation resistors in ADC driver or cable-drive applications |
| Wide supply range | Operates from ±2.5V to ±15V - supports both low-voltage portable systems and industrial ±12V signal chains without redesign |
| Low input bias current | 100 nA (max) over temperature - enables high-impedance sensor interfacing (e.g., pH electrodes, piezoelectric transducers) with <1mV offset error |
| Fast settling time | 1.25 µs to 0.01% for 10V step - meets timing requirements in 16-bit data acquisition systems sampling at ≥500kSPS |
| High PSRR & CMRR | 87 dB PSRR and 76 dB CMRR (min) - suppresses supply noise and common-mode interference in noisy industrial environments |
Applications
| Battery-Powered Instrumentation | Photodiode Preamplification |
|---|---|
|
Use Scenario: Portable gas analyzers requiring low-power, high-precision analog front-ends with 16-bit resolution. IC Role / Device Role / Timing Role: Dual-channel signal conditioner for sensor bridge outputs and reference buffers; provides matched gain/phase response. Use Value: 250µA per amplifier enables >100-hour battery life in AA-powered units while maintaining 0.01% settling for accurate DC measurements. |
Use Scenario: Optical smoke detectors using BPV22NF photodiodes with 400kHz bandwidth requirements. IC Role / Device Role / Timing Role: Transimpedance amplifier with 10kHz high-pass loop; configured per Typical Application TA05. Use Value: 200V/µs slew rate and 14nV/√Hz noise enable detection of fast smoke-induced light pulses with SNR >75dB. |
| Active Filter Design | Data Acquisition Signal Conditioning |
|
Use Scenario: 20kHz 4th-order Butterworth anti-aliasing filters in medical ECG monitors. IC Role / Device Role / Timing Role: Dual op-amp implementing biquad sections; referenced in Typical Application TA04. Use Value: 3MHz GBW and 0.1% settling ensure linear phase response and minimal group delay distortion below cutoff frequency. |
Use Scenario: Industrial PLC analog input modules digitizing ±10V sensor signals at 100kSPS. IC Role / Device Role / Timing Role: Input buffer and level-shifter driving SAR ADCs; handles multiplexed channel switching transients. Use Value: ±10V output swing into 1kΩ and 99dB channel separation prevent crosstalk between adjacent 16-bit channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1351CS8 | Includes power-saving shutdown mode (IQ < 1µA off); otherwise identical GBW (3MHz), slew rate (200V/µs), and noise (14nV/√Hz) | Preferred where intermittent operation or wake-on-event capability is required; adds control pin overhead | Select LT1351CS8 when system-level power budget demands sub-µA standby current; retain LT1352CS8 for always-on signal paths |
| OPA2350UA | Rail-to-rail input/output; lower noise (7nV/√Hz); higher supply current (4.5mA); not C-Load™ stable - requires external compensation for >100pF loads | Suitable for low-voltage (2.7–5.5V) single-supply systems but incompatible with direct capacitive-load drive | Choose OPA2350UA only if RRO operation and ultra-low noise outweigh stability simplicity and quiescent current constraints |
Compared with LT1351CS8 and OPA2350UA, the LT1352CS8 uniquely balances ultra-low quiescent current, guaranteed capacitive-load stability, and wide-supply operation - making it irreplaceable in always-on, multi-rail, high-fidelity analog signal chains where layout simplicity and thermal efficiency are critical.
Availability
LT1352CS8 is available at Aetrix Electronics and suitable for battery-powered instrumentation, photodiode preamplification, active filter design, data acquisition signal conditioning, and industrial sensor interface applications requiring stable component supply across extended temperature ranges.
Supply support for LT1352CS8 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 technologies.
The LT1352CS8 belongs to Linear Technology's C-Load™ operational amplifier family, engineered for wideband precision applications demanding unity-gain stability, low power, and robust capacitive-load drive without external compensation.
FAQ
What is the maximum junction temperature specification for LT1352CS8?
The LT1352CS8 has a maximum junction temperature (TJMAX) of 150°C. Its thermal resistance is θJA = 190°C/W in the SO-8 package. Junction temperature is calculated as TJ = TA + (PD)(190°C/W), where PD is total power dissipation. This value is explicitly stated in the Absolute Maximum Ratings table and confirmed in the Power Dissipation section of the LT1352/LT1353 datasheet.
Is LT1352CS8 rated for operation across the full industrial temperature range?
Yes, the LT1352CS8 is guaranteed to meet all specifications over –40°C to +85°C. The "I" grade designation (as in LT1352IS8) confirms this extended temperature qualification - and the CS8 suffix denotes the SO-8 package with industrial-grade screening. Electrical characteristics tables explicitly list –40°C ≤ TA ≤ 85°C test conditions for parameters including VOS, IB, SR, and GBW.
Does LT1352CS8 require external compensation when driving capacitive loads?
No, the LT1352CS8 does not require external compensation for any capacitive load. Its patented C-Load™ architecture incorporates an internal bootstrapped RC–CC network that dynamically adjusts compensation to maintain stability. The datasheet states "stable with any capacitive load" and provides graphs (G15, G30) showing frequency response and overshoot up to 10,000pF without oscillation or excessive peaking.
What is the minimum supply voltage required for LT1352CS8 operation?
The LT1352CS8 operates with total supply voltages from ±2.5V (5V total) up to ±15V (30V total). The Electrical Characteristics tables specify performance at ±2.5V, ±5V, and ±15V, including gain bandwidth (2.5MHz typ), slew rate (≥15V/µs), and output swing (±1.1V min into 5kΩ). No lower limit is defined beyond ±2.5V, and operation below this is not characterized or guaranteed.
How does LT1352CS8 compare to LT1352CN8 in terms of thermal performance?
The LT1352CS8 (SO-8) has θJA = 190°C/W, while the LT1352CN8 (PDIP-8) has θJA = 130°C/W. Although the PDIP package exhibits lower thermal resistance, the SO-8 offers superior board-level reliability, smaller footprint, and better high-frequency performance due to reduced lead inductance. The LT1352CS8's higher θJA is offset by its surface-mount thermal pad compatibility and suitability for automated assembly.
LT1352CS8 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:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 200V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 20 nA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 250µA (x2 Channels)
- Current - Output / Channel:
- 14 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LT1352CS8 FAQ
1.How can I place an order for LT1352CS8 through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1352CS8 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 LT1352CS8 reliable?
The price and inventory of LT1352CS8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1352CS8 is usually 5 days.
3.What payment methods are accepted for LT1352CS8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1352CS8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1352CS8?
LT1352CS8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1352CS8 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 LT1352CS8?
For technical support, including LT1352CS8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1352CS8 requirements.
6.How does Aetrix verify that LT1352CS8 is sourced from the original manufacturer or authorized distributors?
All LT1352CS8 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 LT1352CS8 meets industry standards.
7.What is the process for return or replacement of LT1352CS8?
All LT1352CS8 units undergo pre-shipment inspection (PSI). If there is an issue with LT1352CS8, 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 LT1352CS8 part is unused and in its original packaging.
Return procedure for LT1352CS8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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