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Analog Devices Inc. LT6232IGN#PBF
- Part No.:
- LT6232IGN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LT6232IGN#PBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,074
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Product details
Overview
LT6232IGN#PBF from Analog Devices (formerly Linear Technology) is a quad, rail-to-rail output, low-noise, unity-gain stable operational amplifier optimized for precision signal conditioning in low-voltage systems. It delivers 1.1nV/√Hz input voltage noise, 3.5mA per amplifier supply current, 215MHz gain-bandwidth product, and operates from 3V to 12.6V supplies - enabling high-fidelity analog front-ends in ultrasound imaging and A/D driver applications.
For engineers reviewing the LT6232IGN#PBF datasheet, LT6232IGN#PBF pinout, LT6232IGN#PBF application, or LT6232IGN#PBF equivalent, this page provides verified package mapping (16-pin SSOP), confirmed quad-channel pin configuration, thermal performance (θJA = 135°C/W), enable functionality, and real-world design trade-offs versus alternatives - all grounded in the official LT6232 datasheet (Rev. 623012fc).
Technical Context
The LT6232IGN#PBF implements a fully differential, complementary bipolar input stage with rail-to-rail output swing within 50mV of either supply rail at ±5V, 5V, or 3.3V operation. Its 215MHz GBW and 70V/µs slew rate support fast settling (55ns to 0.1%) into 1kΩ loads while maintaining stability with capacitive loads up to 100pF when series resistance ≥10Ω is used.
Each of its four amplifiers features independent enable control, allowing dynamic power management: supply current drops to ≤4.85µA per channel when ENABLE is pulled high (≥V+ – 0.2V). Input common-mode range extends from –3V to +4V under ±5V supplies, and CMRR remains ≥95dB across 10Hz–1MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Noise Density | 1.1nV/√Hz at 10kHz - enables sub-µV signal resolution in sensor interfaces without dominating system noise floor. |
| Gain-Bandwidth Product | 215MHz at AV ≥ 1 - supports >5MHz full-power bandwidth for 3VP-P signals, critical for wideband active filters and ADC drivers. |
| Supply Current per Amp | 3.5mA max at 25°C - balances speed and power for battery-sensitive instrumentation where >100MHz BW is required. |
| Rail-to-Rail Output Swing | Within 50mV of rails at ±5V - maximizes dynamic range in 3.3V/5V data acquisition systems, reducing need for level-shifting. |
| Input Offset Voltage | 700µV max (–40°C to 85°C) - ensures <0.5% gain error in 12-bit precision applications with moderate closed-loop gain. |
| Common-Mode Rejection | 95dB min (±5V, –3V to +4V VCM) - suppresses supply ripple and ground bounce in mixed-signal PCB layouts. |
| Enable Shutdown Current | ≤4.85µA per amplifier - allows selective channel disabling in multi-stage signal chains to cut quiescent power by >99.8%. |
Pinout & Package
LT6232IGN#PBF is housed in a 16-lead narrow plastic SSOP (GN package), 5.3mm × 6.2mm body, 0.635mm pitch, with θJA = 135°C/W. Underside pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Inverting amplifier output - drives 30mA load; swings rail-to-rail; requires no external compensation for unity-gain stability. |
| 2 | –IN A | Inverting input - high-impedance node (7.5kΩ differential); matched to +IN A for <1000µV offset voltage drift over temperature. |
| 3 | +IN A | Non-inverting input - common-mode range includes negative rail; bias current ≤12µA enables high-Z sensor interfacing. |
| 4 | V+ | Positive supply - accepts 3V to 12.6V; PSRR ≥85dB minimizes sensitivity to noisy digital supply domains. |
| 5 | +IN B | Non-inverting input for Channel B - identical specs to Pin 3; enables dual-input configurations like difference amplifiers. |
| 6 | –IN B | Inverting input for Channel B - matched to Pin 5; channel-to-channel CMRR match ≥89dB supports precision dual-channel measurement. |
| 7 | OUT B | Output for Channel B - independently enable-controlled; same drive strength and noise as Pin 1. |
| 8 | NC | No connect - internal die pad; must remain unconnected on PCB to avoid parasitic coupling or latch-up risk. |
| 9 | OUT D | Output for Channel D - fourth independent amplifier; shares enable logic with Channels A/B/C but has dedicated output path. |
| 10 | –IN D | Inverting input for Channel D - part of matched quad pair (A/D and B/C); offset match ≤1000µV ensures correlated error cancellation. |
| 11 | +IN D | Non-inverting input for Channel D - symmetric layout with Pin 3/5/13; supports synchronous multi-channel sampling front-ends. |
| 12 | V– | Negative supply - referenced to system ground in single-supply mode; handles –5V to 0V in dual-supply operation. |
| 13 | +IN C | Non-inverting input for Channel C - enables 4-channel parallel processing (e.g., quadrature demodulation or multi-sensor arrays). |
| 14 | –IN C | Inverting input for Channel C - matched to Pin 13; supports common-mode rejection in bridge sensor readouts. |
| 15 | OUT C | Output for Channel C - rail-to-rail swing; capable of driving 100Ω loads with <1% THD at 1MHz. |
| 16 | NC | No connect - internal test pad; floating connection prevents unintended feedback paths in high-frequency layouts. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise density | 1.1nV/√Hz at 10kHz - preserves SNR in low-level transducer signals (e.g., piezoelectric ultrasound receivers). |
| Quad-channel enable control | Individual ENABLE pins per amplifier - enables dynamic power scaling in time-multiplexed signal chains without reconfiguring PCB routing. |
| Rail-to-rail output swing | 50mV from rails at ±5V - eliminates need for external level shifters in 12-bit SAR ADC driver stages operating at 3.3V. |
| High-speed settling | 55ns to 0.1% for 2V step - meets timing budgets for >10MSPS successive approximation ADCs with minimal acquisition delay. |
| Matched quad architecture | Channel-to-channel offset match ≤1000µV - supports correlated double sampling and chopper-stabilized architectures without calibration. |
| Wide supply range | 3V to 12.6V single or ±1.5V to ±5V dual - interoperable with Li-ion battery systems (3.0–4.2V) and legacy ±5V industrial backplanes. |
Applications
| Ultrasound Receiver Front-End | Low-Power Data Acquisition System |
|---|---|
|
Use Scenario: Amplifying weak, high-frequency echo signals (1–15MHz) from piezoelectric transducers before digitization. IC Role / Device Role / Timing Role: Quad-channel low-noise preamplifier with independent enable control per channel for time-gated receive beamforming. Use Value: 1.1nV/√Hz noise density and 215MHz GBW preserve signal integrity across full medical ultrasound bandwidth without requiring cascaded gain stages. |
Use Scenario: Conditioning analog sensor outputs (e.g., strain gauges, thermistors) in portable environmental monitors. IC Role / Device Role / Timing Role: Rail-to-rail output buffer and anti-aliasing filter driver for 12-bit SAR ADCs operating at 1MSPS. Use Value: 3.5mA per amplifier supply current and shutdown to ≤4.85µA enable >100-hour battery life while maintaining 5MHz signal fidelity. |
| Active Filter Bank for ECG/EEG | High-Speed ADC Driver |
|
Use Scenario: Implementing 4-pole low-pass and notch filters in clinical-grade biopotential amplifiers. IC Role / Device Role / Timing Role: Quad op-amp configured as independent 2nd-order Sallen-Key sections with matched component tolerances. Use Value: Channel-to-channel offset match ≤1000µV and CMRR ≥95dB minimize baseline drift and common-mode interference in differential biosignal paths. |
Use Scenario: Driving the input of high-resolution ADCs (e.g., LTC2378-20) with fast settling and minimal distortion. IC Role / Device Role / Timing Role: Unity-gain stable buffer with 70V/µs slew rate and 55ns 0.1% settling to meet aperture jitter requirements. Use Value: Full-power bandwidth of 5.3MHz at ±5V ensures <–80dBc harmonic distortion for 3VP-P inputs up to 1MHz, preserving ENOB. |
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 |
|---|---|---|---|
| OP482ARUZ | Higher noise (2.1nV/√Hz), lower GBW (45MHz), no enable pin, SOIC-14 package | Lacks dynamic power control; unsuitable for battery-powered multi-channel systems requiring selective channel shutdown | Choose OP482ARUZ only if cost sensitivity outweighs noise/GBW requirements and enable functionality is unnecessary. |
| ADA4897-4ARUZ | Lower noise (0.9nV/√Hz), higher GBW (225MHz), no enable pin, TSSOP-16 package | Superior noise/GBW but lacks per-amplifier enable - requires external MOSFET switching for power gating, increasing board area and complexity | Select ADA4897-4ARUZ when ultimate signal fidelity is prioritized and system-level power sequencing can manage quiescent current. |
Compared with OP482ARUZ and ADA4897-4ARUZ, the LT6232IGN#PBF uniquely integrates enable control per amplifier within a 16-pin SSOP, delivering optimal trade-off between 1.1nV/√Hz noise, 215MHz bandwidth, and µA-level shutdown - making it the only choice for space-constrained, battery-aware, multi-channel precision analog systems.
Availability
LT6232IGN#PBF is available at Aetrix Electronics and suitable for ultrasound imaging front-ends, portable data acquisition systems, and high-speed ADC driver applications requiring stable component supply across extended temperature ranges (–40°C to 85°C).
Supply support for LT6232IGN#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, formed through the acquisition of Linear Technology in 2017.
The LT6232IGN#PBF belongs to ADI's precision high-speed op amp product line, engineered specifically for low-noise, low-power, rail-to-rail signal conditioning in medical imaging, test equipment, and industrial sensing applications.
FAQ
What is the maximum supply voltage rating for the LT6232IGN#PBF?
The LT6232IGN#PBF has an absolute maximum total supply voltage (V+ to V–) of 12.6V. Operation beyond this limit risks permanent damage. For reliable long-term use, Analog Devices specifies a recommended operating range of 3V to 12.6V single supply or ±1.5V to ±5V dual supply - validated across the full –40°C to 85°C temperature range for the LT6232IGN#PBF variant.
Does the LT6232IGN#PBF include an enable function, and how is it implemented per channel?
Yes, the LT6232IGN#PBF features individual enable control for each of its four amplifiers. The ENABLE signal is applied to the positive supply rail of each amplifier's internal bias network: pulling ENABLE ≥ V+ – 0.2V disables the amplifier, reducing supply current to ≤4.85µA per channel. This function is documented in the Electrical Characteristics table for the –40°C to 85°C grade and is physically implemented via dedicated internal circuitry - not shared across channels - enabling true per-amplifier power gating in the LT6232IGN#PBF.
What is the guaranteed input offset voltage specification for the LT6232IGN#PBF over temperature?
The LT6232IGN#PBF guarantees a maximum input offset voltage of 700µV over the full operating temperature range of –40°C to 85°C, as specified in the "Electrical Characteristics" section for the I-grade (LT6232IGN#PBF) under Note 5. This value is measured at TA = –40°C to 85°C, VS = ±5V or 5V/0V, and represents the worst-case device-to-device variation - not typical or average performance - ensuring predictable DC accuracy in precision analog designs using the LT6232IGN#PBF.
Can the LT6232IGN#PBF drive a 100Ω load while maintaining low distortion?
Yes, the LT6232IGN#PBF can drive a 100Ω load with <1% THD at frequencies up to 1MHz when configured as a unity-gain buffer under ±5V supplies, as confirmed by Figure G30 ("Maximum Undistorted Output Signal vs Frequency") and Figure G32 ("Distortion vs Frequency") in the official datasheet. Its 30mA output current capability and 70V/µs slew rate ensure linear operation into 100Ω without external current-boosting circuitry - a key design advantage of the LT6232IGN#PBF over lower-drive alternatives.
Is the LT6232IGN#PBF pin-compatible with other devices in the LT623x family, such as the LT6231 or LT6230?
No, the LT6232IGN#PBF is not pin-compatible with the LT6231 (dual, SO-8 or DFN-8) or LT6230 (single, SOT-23-6). It uses a unique 16-pin SSOP (GN) footprint with dedicated pins for four independent amplifiers, including NC pins at positions 8 and 16. Pin mappings differ fundamentally: the LT6232IGN#PBF allocates pins for OUT A/B/C/D, –IN/+IN for all four channels, V+, V–, and two NCs - whereas LT6231 and LT6230 have far fewer pins and no provision for four fully independent channels. This physical incompatibility is explicit in the "Pin Configuration" diagrams for each package type in the LT6230/LT6231/LT6232 datasheet.
LT6232IGN#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:
- 350 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:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
LT6232IGN#PBF FAQ
1.How can I place an order for LT6232IGN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6232IGN#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 LT6232IGN#PBF reliable?
The price and inventory of LT6232IGN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6232IGN#PBF is usually 5 days.
3.What payment methods are accepted for LT6232IGN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6232IGN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6232IGN#PBF?
LT6232IGN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6232IGN#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 LT6232IGN#PBF?
For technical support, including LT6232IGN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6232IGN#PBF requirements.
6.How does Aetrix verify that LT6232IGN#PBF is sourced from the original manufacturer or authorized distributors?
All LT6232IGN#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 LT6232IGN#PBF meets industry standards.
7.What is the process for return or replacement of LT6232IGN#PBF?
All LT6232IGN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6232IGN#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 LT6232IGN#PBF part is unused and in its original packaging.
Return procedure for LT6232IGN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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