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Analog Devices Inc. LT6235CGN#TRPBF
- Part No.:
- LT6235CGN#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LT6235CGN#TRPBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,973
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Product details
Overview
LT6235CGN#TRPBF from Analog Devices (formerly Linear Technology) is a quad low-noise, rail-to-rail output operational amplifier optimized for precision signal conditioning in low-voltage systems. It delivers 1.9nV/√Hz input voltage noise, 60MHz gain-bandwidth product (per amplifier), 1.2mA supply current per channel, and operates from 3V to 12.6V supplies - enabling high-fidelity amplification in ultrasound front-ends and A/D driver stages.
For engineers reviewing the LT6235CGN#TRPBF datasheet, LT6235CGN#TRPBF pinout, LT6235CGN#TRPBF application, or LT6235CGN#TRPBF equivalent, key selection criteria include its 16-pin SSOP package, quad-channel integration with matched performance (≤800µV offset voltage match), rail-to-rail output swing within 50mV of rails, and enable-pin control supporting <10µA shutdown current per amplifier.
Technical Context
The LT6235CGN#TRPBF implements a unity-gain stable voltage-feedback architecture with internal compensation, optimized for low-noise, low-power operation across 3V–12.6V single-supply or ±1.5V–±5V dual-supply configurations. Its input stage uses bipolar transistor technology to achieve 1.9nV/√Hz noise density and 115dB typical CMRR at 25°C.
Each of the four amplifiers features independent enable control, allowing dynamic power management without external circuitry. The device maintains full rail-to-rail output swing (within 50mV of V+ and V−) and supports 30mA output drive capability, making it suitable for driving capacitive loads and ADC inputs directly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Noise Voltage Density | 1.9nV/√Hz at 10kHz - enables high-resolution sensor signal amplification without adding significant noise floor |
| Gain-Bandwidth Product | 60MHz - supports stable unity-gain operation and preserves bandwidth in gain-of-2 active filters |
| Supply Current per Amp | 1.2mA max - allows four-channel operation under 5mA total, critical for battery-powered portable instrumentation |
| Output Swing | Rail-to-rail, within 50mV of V+ and V− - maximizes dynamic range in 3.3V and 5V systems |
| Input Offset Voltage | 450µV max (C-grade) - ensures DC accuracy in precision transducer interfaces and medical analog front-ends |
| Common Mode Rejection | 115dB typ - rejects supply and reference noise in single-ended sensor bridges and differential receivers |
| Operating Temp Range | 0°C to 70°C (C-grade) - qualified for commercial and industrial embedded applications requiring long-term stability |
Pinout & Package
LT6235CGN#TRPBF is housed in a 16-lead narrow plastic SSOP (GN) package, 4.4mm × 3.9mm, 0.635mm pitch, with exposed pad optional for thermal enhancement. Pin 1 marked by dot; top-side marking "6235".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load or next-stage input with 30mA capability and rail-to-rail swing |
| 2 | –IN A | Inverting input of Amp A - high-impedance node (22MΩ common-mode) for feedback network connection |
| 3 | +IN A | Non-inverting input of Amp A - accepts sensor or reference signals with 115dB CMRR rejection |
| 4 | V+ | Positive supply rail - accepts 3V to 12.6V single supply or connects to +VS in dual-supply mode |
| 5 | +IN B | Non-inverting input of Amp B - electrically isolated from Amp A; supports independent signal paths |
| 6 | –IN B | Inverting input of Amp B - matches Amp A's bias current (≤0.4µA mismatch) for differential pair use |
| 7 | OUT B | Amplifier B output - identical AC/DC specs to OUT A; enables dual-channel simultaneous sampling |
| 8 | NC | No connect - internal die pad; must remain unconnected on PCB |
| 9 | OUT D | Amplifier D output - fourth channel; shares same noise, GBW, and drive specs as other outputs |
| 10 | –IN D | Inverting input of Amp D - supports quad-channel active filter banks or multi-sensor conditioning |
| 11 | +IN D | Non-inverting input of Amp D - matched offset and drift characteristics ensure channel-to-channel consistency |
| 12 | V– | Negative supply rail - connects to ground (single-supply) or –VS (dual-supply); ties to exposed pad if used |
| 13 | +IN C | Non-inverting input of Amp C - completes quad configuration; enables 4× independent gain stages |
| 14 | –IN C | Inverting input of Amp C - supports matched-pair instrumentation amplifier topologies when combined with Amp D |
| 15 | OUT C | Amplifier C output - fully specified for 30mA sourcing/sinking and 17V/µs slew rate |
| 16 | NC | No connect - internal die pad; no PCB trace or solder required |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise, low-power op amp architecture | 1.9nV/√Hz noise + 1.2mA per amp enables battery-operated ultrasound preamps with >80dB SNR |
| Quad-channel integration in SSOP | Four matched amplifiers in one 4.4×3.9mm package reduce board area vs discrete solutions by >60% |
| Rail-to-rail output swing | Swings within 50mV of V+ and V− at 15mA load - preserves full-scale resolution in 3.3V ADC drivers |
| Independent enable control per amp | Each amplifier disables to <10µA - allows dynamic channel gating in time-multiplexed sensor arrays |
| High PSRR and CMRR | 115dB CMRR + 115dB PSRR minimizes error from noisy digital supplies and shared reference grounds |
Applications
| Ultrasound Signal Conditioning | Low-Power Sensor Interface |
|---|---|
Use Scenario: Amplifying weak echo signals from piezoelectric transducers in portable ultrasound machines. IC Role / Device Role / Timing Role: First-stage low-noise preamplifier with gain-of-100, driving anti-aliasing filter before 12-bit ADC. Use Value: 1.9nV/√Hz noise density preserves microvolt-level echoes; rail-to-rail output ensures full utilization of 3.3V ADC input range. | Use Scenario: Conditioning output from MEMS accelerometers and strain gauges in wireless condition monitoring nodes. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with selectable gain and offset trimming. Use Value: 450µV max input offset and 0.5µV/°C drift maintain calibration over temperature; 1.2mA per amp extends battery life beyond 2 years. |
| Active Filter Bank | A/D Converter Driver |
Use Scenario: Implementing 4th-order Butterworth bandpass filtering for ECG signal extraction. IC Role / Device Role / Timing Role: Quad op amp configured as two biquad sections (2 amps each) for compact, matched-filter design. Use Value: Channel-to-channel matching (≤800µV offset match) ensures consistent pole placement; 60MHz GBW supports 10kHz filter cutoff with margin. | Use Scenario: Driving SAR and sigma-delta ADC inputs in data acquisition systems with multiplexed analog channels. IC Role / Device Role / Timing Role: Buffer and level-shifter between sensor signal chain and ADC reference domain. Use Value: 30mA output drive settles 2V step in 175ns (0.1%), eliminating external buffer; rail-to-rail swing avoids clipping near supply rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-noise op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT6235IGN#TRPBF | Same quad op amp architecture but rated for –40°C to 85°C industrial temp range; 700µV max input offset (vs 450µV) | Required for extended-temperature industrial or automotive cabin applications where ambient exceeds 70°C | Select LT6235IGN#TRPBF when operating outside 0°C–70°C; otherwise LT6235CGN#TRPBF offers tighter DC specs at lower cost |
| ADA4897-4ARUZ | Lower noise (1.0nV/√Hz), higher GBW (220MHz), but 3.2mA per amp supply current and no enable pin | Suitable for high-speed, ultra-low-noise applications where power budget allows >12mA total quiescent current | Choose ADA4897-4ARUZ only when noise performance is prioritized over power; LT6235CGN#TRPBF remains optimal for balanced noise/power/feature trade-off |
Compared with LT6235IGN#TRPBF, LT6235CGN#TRPBF provides superior DC accuracy (450µV vs 700µV offset) and lower cost for commercial-temperature designs; versus ADA4897-4ARUZ, it trades 1.0nV/√Hz noise for 60% lower supply current and integrated enable functionality - critical for portable and thermally constrained systems.
Availability
LT6235CGN#TRPBF is available at Aetrix Electronics and suitable for ultrasound imaging systems, portable medical devices, and industrial sensor signal chains requiring stable component supply, long-lifecycle support, and guaranteed commercial-temperature performance.
Supply support for LT6235CGN#TRPBF 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 LT6235CGN#TRPBF belongs to ADI's legacy Linear Technology precision op amp portfolio, designed specifically for low-noise, low-power, rail-to-rail signal conditioning in space- and energy-constrained embedded systems.
FAQ
What is the maximum supply voltage rating for LT6235CGN#TRPBF?
The LT6235CGN#TRPBF has an absolute maximum total supply voltage (V+ to V−) of 12.6V. Operation beyond this rating risks permanent damage. For reliable long-term use, Analog Devices specifies a recommended operating range of 3V to 12.6V, with full performance guaranteed across that span in the 0°C to 70°C temperature grade.
Does LT6235CGN#TRPBF support single-supply operation?
Yes, LT6235CGN#TRPBF supports true single-supply operation from 3V to 12.6V. Its rail-to-rail output stage swings within 50mV of both supply rails, and its input common-mode range extends to within 1.5V of V− and 1.15V of V+ at 3.3V supply - enabling direct interfacing with microcontrollers and ADCs without level-shifting circuitry.
How many amplifiers does LT6235CGN#TRPBF contain, and are they independently controllable?
The LT6235CGN#TRPBF integrates four fully independent operational amplifiers in a single 16-pin SSOP package. Each amplifier features its own non-inverting input, inverting input, and output. While there is no per-amplifier enable pin, the device does not include individual enable logic - all four amplifiers share the same supply rails and operate simultaneously when powered. Enable functionality is present only on the LT6233/LT6233-10 single-channel variants.
What is the typical input-referred voltage noise of LT6235CGN#TRPBF, and at what frequency is it specified?
The LT6235CGN#TRPBF delivers a typical input-referred voltage noise density of 1.9nV/√Hz, measured at 10kHz with VS = 5V and RL = 10kΩ. This value is consistent across all four amplifiers and remains stable from 1kHz to 100kHz, making it ideal for wideband sensor signal amplification where noise floor integrity is critical.
Is LT6235CGN#TRPBF pin-compatible with other members of the LT623x family?
No, LT6235CGN#TRPBF is not pin-compatible with LT6233 (6-pin TSOT-23) or LT6234 (8-pin SO/DFN) variants due to its 16-pin SSOP footprint and quad-channel pinout. However, it shares identical electrical specifications (noise, GBW, supply current, etc.) with the LT6235IGN#TRPBF - differing only in temperature grade and input offset voltage limit - ensuring seamless functional replacement within the same package variant.
LT6235CGN#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 17V/µs
- Gain Bandwidth Product:
- 60 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1.5 µA
- Voltage - Input Offset:
- 75 µV
- Current - Supply:
- 1.05mA (x4 Channels)
- Current - Output / Channel:
- 55 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 12.6 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
LT6235CGN#TRPBF FAQ
1.How can I place an order for LT6235CGN#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6235CGN#TRPBF 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 LT6235CGN#TRPBF reliable?
The price and inventory of LT6235CGN#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6235CGN#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6235CGN#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6235CGN#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6235CGN#TRPBF?
LT6235CGN#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6235CGN#TRPBF 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 LT6235CGN#TRPBF?
For technical support, including LT6235CGN#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6235CGN#TRPBF requirements.
6.How does Aetrix verify that LT6235CGN#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6235CGN#TRPBF 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 LT6235CGN#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6235CGN#TRPBF?
All LT6235CGN#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6235CGN#TRPBF, 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 LT6235CGN#TRPBF part is unused and in its original packaging.
Return procedure for LT6235CGN#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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