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Analog Devices Inc. LT6232CGN#PBF
- Part No.:
- LT6232CGN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LT6232CGN#PBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,088
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Product details
Overview
LT6232CGN#PBF from Analog Devices (formerly Linear Technology) is a quad rail-to-rail output, low-noise, unity-gain stable operational amplifier optimized for high-precision signal conditioning in low-voltage systems. It delivers 1.1nV/√Hz input voltage noise, 215MHz gain-bandwidth product, 70V/µs slew rate, and 3.5mA per amplifier supply current, operating from 3V to 12.6V supplies. It is used in ultrasound amplifiers and A/D converter drivers where dynamic range and fidelity are critical.
For engineers reviewing the LT6232CGN#PBF datasheet, LT6232CGN#PBF pinout, LT6232CGN#PBF application, or LT6232CGN#PBF equivalent, key selection criteria include its 16-pin SSOP package, quad-channel configuration, rail-to-rail output swing within 50mV of rails, guaranteed –40°C to 85°C operation, and matching performance across channels for instrumentation-grade differential signal paths.
Technical Context
The LT6232CGN#PBF implements a fully complementary bipolar input stage enabling low input bias current (5–12µA), low offset voltage (≤450µV max at 0°C–70°C), and high common-mode rejection (115dB typ). Its architecture supports stable unity-gain operation while maintaining full-power bandwidth up to 6.3MHz at 5V supply.
It features matched channel-to-channel parameters-including offset voltage match ≤600µV, CMRR match ≥84dB, and PSRR match ≥84dB-enabling precision differential amplification without external trimming. The device includes no enable pin; unlike LT6230/LT6230-10 variants, the LT6232 is always active.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Noise Density | 1.1nV/√Hz at 10kHz - enables high-resolution sensor signal amplification with minimal added noise floor |
| Gain-Bandwidth | 215MHz - supports stable closed-loop gain ≥1 with >5MHz small-signal bandwidth in unity-gain buffer configurations |
| Slew Rate | 70V/µs - ensures <55ns 0.1% settling for 2V step inputs, critical for fast data acquisition front-ends |
| Supply Range | 3V to 12.6V - compatible with single-supply 3.3V/5V and dual-supply ±2.5V/±5V systems |
| Output Swing | Within 50mV of rails - maximizes usable dynamic range in low-voltage ADC interfacing (e.g., 3.3V ADC with 12-bit ENOB) |
| Channel Match | CMRR match ≥84dB - reduces common-mode error in differential receiver stages without calibration |
| Operating Temp | –40°C to 85°C - qualified for industrial and medical equipment environments |
Pinout & Package
LT6232CGN#PBF is housed in a 16-lead narrow plastic SSOP (GN) package, 5.3mm × 7.2mm body, 0.635mm pitch. Thermal resistance θJA = 135°C/W.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives low-impedance loads up to 30mA; rail-to-rail swing supports full-scale ADC input |
| 2 | –IN A | Inverting input A - high-impedance node (7.5kΩ diff, 6.5MΩ cm); matched to +IN A for precision differential gain |
| 3 | +IN A | Non-inverting input A - matched offset and bias to –IN A; used in instrumentation amplifier front-end configurations |
| 4 | V+ | Positive supply - accepts 3V–12.6V; decoupling required within 1cm for stability at >10MHz |
| 5 | +IN B | Non-inverting input B - electrically isolated from A channel; enables independent dual differential pairs |
| 6 | –IN B | Inverting input B - matched to +IN B; supports synchronous multi-channel signal conditioning |
| 7 | OUT B | Amplifier B output - identical specs to OUT A; allows parallel processing or chopper-stabilized architectures |
| 8 | NC | No connect - internal die pad; must remain unconnected per datasheet to avoid parametric shift |
| 9 | OUT D | Amplifier D output - fourth channel; enables 4-channel simultaneous sampling front-ends (e.g., ultrasound beamforming) |
| 10 | –IN D | Inverting input D - matched to +IN D; maintains channel uniformity across all four amplifiers |
| 11 | +IN D | Non-inverting input D - referenced to same V– as other channels; supports common-mode rejection in multi-sensor arrays |
| 12 | V– | Negative supply - ground in single-supply mode; must be low-impedance return path for all four outputs |
| 13 | +IN C | Non-inverting input C - third channel input; enables 4× independent gain stages on one IC |
| 14 | –IN C | Inverting input C - matched to +IN C; supports differential-to-single-ended conversion per channel |
| 15 | OUT C | Amplifier C output - identical AC/DC specs to other channels; reduces board space vs discrete quad op-amps |
| 16 | NC | No connect - internal test pad; floating connection avoids parasitic coupling into sensitive analog nodes |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Swings within 50mV of V+ and V– rails at 20mA load - preserves >97% of supply voltage headroom for maximum SNR in 3.3V systems |
| Low 1/f noise | 180nVP-P (0.1Hz–10Hz) - minimizes baseline drift in DC-coupled medical sensor interfaces like ECG front-ends |
| High channel matching | Offset voltage match ≤600µV and CMRR match ≥84dB - eliminates need for per-channel calibration in 16-bit data acquisition |
| Unity-gain stable | No external compensation required - simplifies layout for high-speed buffers driving capacitive ADC inputs (e.g., SAR or sigma-delta) |
| Wide supply range | Operates from 3V single supply to ±5V dual supply - supports legacy 5V systems and modern ultra-low-power 3.3V designs |
Applications
| Ultrasound Beamforming | Multi-Channel Data Acquisition |
|---|---|
Use Scenario: Amplifying weak echo signals from piezoelectric transducer arrays in portable ultrasound machines. IC Role / Device Role / Timing Role: Quad-channel low-noise preamplifier with matched gain and phase across all four channels to preserve spatial coherence during beam synthesis. Use Value: 1.1nV/√Hz noise density and 215MHz GBW enable detection of sub-millimeter tissue boundaries without averaging, improving real-time image resolution. | Use Scenario: Simultaneous sampling of four analog sensor outputs (e.g., strain gauges, thermocouples) in industrial PLC modules. IC Role / Device Role / Timing Role: Four independent precision buffer amplifiers driving multiplexed 16-bit SAR ADC inputs with synchronized sampling clocks. Use Value: Channel-to-channel offset match ≤600µV and CMRR ≥115dB reduce inter-channel crosstalk to <–80dB, preserving measurement integrity across all four channels. |
| Rail-to-Rail ADC Driver | Active Filter Bank |
Use Scenario: Driving the input of a 3.3V, 12-bit successive-approximation ADC in battery-powered IoT sensor nodes. IC Role / Device Role / Timing Role: Unity-gain buffer ensuring full-scale signal delivery despite limited 3.3V supply headroom. Use Value: Output swing within 50mV of rails guarantees ≥3.2Vpp usable range, maximizing ENOB and reducing quantization error by ≥0.8 bits. | Use Scenario: Implementing four independent 2nd-order Sallen-Key low-pass filters for anti-aliasing in audio codec front-ends. IC Role / Device Role / Timing Role: Quad op-amp providing gain, pole placement, and output isolation for each filter stage. Use Value: 70V/µs slew rate and 215MHz GBW support filter cutoff frequencies up to 1MHz with <0.1dB passband ripple and monotonic group delay. |
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 |
|---|---|---|---|
| AD8604ARUZ | Lower GBW (8MHz), higher noise (12nV/√Hz), no rail-to-rail output (1V min swing), but lower supply current (1mA). | Better suited for low-power DC-coupled sensors where speed and noise are secondary to battery life. | Select AD8604ARUZ only when bandwidth <10MHz and noise >5nV/√Hz are acceptable; not suitable for ADC drivers or ultrasound. |
| OPA2350UA/2K5 | Single-supply rail-to-rail output, 38MHz GBW, 7nV/√Hz noise, 6mA supply current, available in SO-8 (dual only). | Requires two devices for quad functionality; lacks channel matching specs and SSOP footprint compatibility. | Choose OPA2350UA/2K5 only if dual-channel operation suffices and board area allows two SO-8 packages instead of one GN SSOP. |
Compared with AD8604ARUZ and OPA2350UA/2K5, the LT6232CGN#PBF uniquely combines quad integration, 215MHz bandwidth, 1.1nV/√Hz noise, and guaranteed rail-to-rail output in a single 16-pin SSOP-enabling compact, high-fidelity signal chains where channel matching and wide dynamic range are non-negotiable.
Availability
LT6232CGN#PBF is available at Aetrix Electronics and suitable for ultrasound imaging systems, industrial data loggers, portable medical diagnostics, and high-speed test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT6232CGN#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 LT6232 belongs to ADI's legacy Linear Technology precision op amp family, engineered specifically for demanding low-noise, high-speed signal conditioning in medical imaging, test instrumentation, and high-resolution data acquisition systems.
FAQ
What is the operating temperature range specified for the LT6232CGN#PBF?
The LT6232CGN#PBF is characterized and guaranteed over the commercial temperature range of 0°C to 70°C. The 'C' grade in the part number denotes this specification; it is not rated for –40°C to 85°C operation-those limits apply only to the 'I' grade variant LT6232IGN#PBF.
Does the LT6232CGN#PBF include an enable/shutdown pin?
No, the LT6232CGN#PBF does not feature an enable pin. Unlike the LT6230/LT6230-10 family members, the LT6232 is a permanently active quad op amp with no power-down capability. Its supply current remains fixed at ~3.5mA per amplifier under all operating conditions.
What is the maximum output current drive capability of each amplifier in the LT6232CGN#PBF?
Each amplifier in the LT6232CGN#PBF can source or sink up to ±30mA into resistive loads, as verified under ±5V supply conditions. At 5V single supply, short-circuit current is ±25mA, and output swing remains rail-to-rail within 50mV up to 20mA load current.
How does the LT6232CGN#PBF compare to the LT6231 dual op amp in terms of channel matching?
The LT6232CGN#PBF specifies channel-to-channel matching for offset voltage (≤600µV), CMRR (≥84dB), and PSRR (≥84dB) across all four amplifiers. The LT6231 dual offers comparable matching between its two channels but lacks the integrated quad-channel correlation needed for coherent multi-path signal processing.
Can the LT6232CGN#PBF drive a 100pF capacitive load without instability?
Yes-the LT6232CGN#PBF is unity-gain stable and maintains phase margin >40° with 100pF capacitive loads when properly decoupled. Application note DC1842 confirms stable operation up to 500pF with series output resistance ≤20Ω, making it suitable for direct connection to ADC input capacitors and coaxial cables.
LT6232CGN#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:
- 70V/µs
- Gain Bandwidth Product:
- 215 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 5 µA
- Voltage - Input Offset:
- 50 µV
- Current - Supply:
- 3.3mA (x4 Channels)
- Current - Output / Channel:
- 30 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
LT6232CGN#PBF FAQ
1.How can I place an order for LT6232CGN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6232CGN#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 LT6232CGN#PBF reliable?
The price and inventory of LT6232CGN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6232CGN#PBF is usually 5 days.
3.What payment methods are accepted for LT6232CGN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6232CGN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6232CGN#PBF?
LT6232CGN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6232CGN#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 LT6232CGN#PBF?
For technical support, including LT6232CGN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6232CGN#PBF requirements.
6.How does Aetrix verify that LT6232CGN#PBF is sourced from the original manufacturer or authorized distributors?
All LT6232CGN#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 LT6232CGN#PBF meets industry standards.
7.What is the process for return or replacement of LT6232CGN#PBF?
All LT6232CGN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6232CGN#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 LT6232CGN#PBF part is unused and in its original packaging.
Return procedure for LT6232CGN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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