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Analog Devices Inc. LT6204CGN#PBF
- Part No.:
- LT6204CGN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LT6204CGN#PBF.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,681
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Product details
Overview
LT6204CGN#PBF from Analog Devices (formerly Linear Technology) is a quad rail-to-rail input/output operational amplifier optimized for low-noise, low-power signal conditioning in precision analog systems. It delivers 1.9nV/√Hz input voltage noise, 100MHz gain bandwidth, 25V/µs slew rate, and draws only 2.5mA per amplifier at 5V supply - enabling high-fidelity amplification in battery-powered data acquisition and DSL receiver front-ends.
For engineers reviewing the LT6204CGN#PBF datasheet, LT6204CGN#PBF pinout, LT6204CGN#PBF application, or LT6204CGN#PBF equivalent, key selection criteria include its 16-pin SSOP package, 0°C to 70°C operating range, rail-to-rail output swing within 35mV of rails at 20mA load, and guaranteed CMRR ≥83dB over temperature - critical for multi-channel sensor buffering and A/D driver designs requiring channel matching.
Technical Context
The LT6204CGN#PBF integrates four independent unity-gain-stable op amps with matched input offset voltage (≤0.9mV typical at VCM = half supply), low input bias current (±1.3µA max), and balanced input noise current density (0.75pA/√Hz). Its architecture supports operation from 2.5V to 12.6V total supply, with specified performance at 3V, 5V, and ±5V.
It features rail-to-rail input common-mode range (including both supplies) and rail-to-rail output swing (within 35mV of V+ and 25mV of V− at 20mA), enabling full dynamic range utilization in single-supply systems. Harmonic distortion remains below –80dBc at 1MHz, supporting high-SNR signal chains in active filters and video line receivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Noise Voltage Density | 1.9nV/√Hz at 100kHz - enables sub-µV signal amplification without dominant op amp noise contribution |
| Gain Bandwidth Product | 100MHz - supports stable closed-loop gain ≥10 up to 10MHz or unity-gain buffers beyond 50MHz |
| Slew Rate | 25V/µs - ensures faithful reproduction of fast transients (e.g., 10V step in <400ns) in pulse amplification |
| Supply Current per Amp | 2.5mA at 5V - allows four-channel operation at ≤10mA total, suitable for power-constrained portable instrumentation |
| Input Offset Voltage | 0.7mV max (0°C to 70°C) - minimizes DC error in precision transducer interfaces and multi-stage gain blocks |
| Common-Mode Rejection | 83dB min (0°C to 70°C) - rejects supply ripple and shared-noise coupling in multi-amplifier PCB layouts |
| Output Swing (20mA load) | VOH ≥ V+ − 360mV, VOL ≤ V− + 240mV - preserves >95% of full-scale range driving 1kΩ A/D inputs |
Pinout & Package
LT6204CGN#PBF is housed in a 16-lead narrow plastic SSOP (GN package), 5.3mm × 4.4mm body, 0.65mm pitch, with exposed pad thermally connected to V−. Pin 1 is marked by a dot or beveled corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external loads up to ±30mA; rail-to-rail swing enables direct connection to SAR ADC reference buffers |
| 2 | –IN A | Inverting input of Amp A - high-impedance node; requires matched trace routing to minimize CMRR degradation |
| 3 | +IN A | Non-inverting input of Amp A - accepts signals from 0V to V+; compatible with single-ended sensor outputs |
| 4 | V+ | Positive supply rail - decoupling capacitor (0.1µF ceramic) required within 5mm for stability at >10MHz |
| 5 | +IN B | Non-inverting input of Amp B - identical electrical characteristics to +IN A; supports differential pair configurations |
| 6 | –IN B | Inverting input of Amp B - matches –IN A for channel-to-channel offset voltage difference ≤0.9mV |
| 7 | OUT B | Amplifier B output - electrically isolated from OUT A; enables dual-channel simultaneous sampling paths |
| 8 | NC | No connect - internal die bond wire stub; must remain unconnected on PCB |
| 9 | OUT D | Amplifier D output - fourth independent output; shares V− with all channels for consistent ground reference |
| 10 | –IN D | Inverting input of Amp D - matches –IN C for quad-level matching per datasheet Note 5 |
| 11 | +IN D | Non-inverting input of Amp D - supports independent sensor channel or feedback path |
| 12 | V− | Negative supply rail - also serves as thermal pad connection; must be soldered to large copper pour for θJA = 135°C/W |
| 13 | +IN C | Non-inverting input of Amp C - completes quad configuration; enables 4× single-ended or 2× fully differential stages |
| 14 | –IN C | Inverting input of Amp C - matched to –IN D for inter-channel tracking in multi-stage filters |
| 15 | OUT C | Amplifier C output - provides third independent buffered output; supports redundant signal paths |
| 16 | NC | No connect - internal test structure; no PCB trace or via allowed |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input common-mode range includes V− and V+; output swings to within 35mV of rails at 20mA - eliminates level-shifting in 3.3V/5V systems |
| Low 1/f noise | 800nVP-P (0.1Hz–10Hz) - critical for precision DC-coupled sensor amplifiers and weigh scale front-ends |
| Channel matching | Offset voltage match ≤0.9mV, CMRR match ≥85dB - enables accurate differential measurements across all four amplifiers |
| Unity-gain stability | Stable with capacitive loads ≤100pF - simplifies layout for driving long traces or ADC input capacitance without isolation resistors |
| Wide supply range | Operates from 2.5V to 12.6V total supply - supports both low-voltage portable gear and industrial 12V systems |
| Low distortion | –80dBc THD+N at 1MHz - preserves signal integrity in video line drivers and broadband active filters |
Applications
| Medical Instrumentation | Industrial Sensor Interface |
|---|---|
Use Scenario: Amplifying low-level ECG electrode signals (0.5–5mV) in portable patient monitors with 3.3V supply. IC Role / Device Role / Timing Role: Quad LT6204CGN#PBF configures two instrumentation amps (A+B) and two filter buffers (C+D) in one package. Use Value: 1.9nV/√Hz noise ensures ≥80dB SNR for microvolt-level biopotential capture without external chopper assistance. | Use Scenario: Conditioning 4-channel RTD bridge outputs in a PLC analog input module with 5V supply. IC Role / Device Role / Timing Role: Each amplifier conditions one RTD channel with programmable gain and anti-alias filtering. Use Value: Matched offset (≤0.9mV) and CMRR (≥83dB) minimize channel-to-channel calibration drift across temperature. |
| DSL Line Receiver | Portable Data Acquisition |
Use Scenario: Differential receiver stage in ADSL2+ line card, rejecting common-mode noise on twisted-pair lines. IC Role / Device Role / Timing Role: Two LT6204CGN#PBF amplifiers form a low-noise, high-linearity differential receiver (A+B) with local echo cancellation. Use Value: –80dBc harmonic distortion at 1MHz meets ITU-T G.992.3 spectral mask requirements for upstream transmission. | Use Scenario: Driving 16-bit SAR ADC inputs in handheld multimeter with 3.7V Li-ion battery supply. IC Role / Device Role / Timing Role: Buffering multiplexed sensor inputs (thermocouple, pH, conductivity) before ADC sampling. Use Value: 2.5mA per amp enables 4-channel continuous monitoring for >10 hours on single charge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8604ARUZ | Lower noise (12nV/√Hz), higher supply current (1.3mA/amp), 10MHz GBW, 5V-only operation | Better DC precision but insufficient bandwidth for >1MHz active filters or video | Select when ultra-low offset (60µV max) and zero-drift stability outweigh speed/noise needs |
| OPA4340UA | Higher noise (20nV/√Hz), lower supply current (750µA/amp), 5.5MHz GBW, rail-to-rail I/O | Optimized for micropower (3mA total) but lacks bandwidth for DSL or fast data acquisition | Select for battery life-critical applications where 100kHz signal bandwidth suffices |
Compared with AD8604ARUZ and OPA4340UA, the LT6204CGN#PBF uniquely balances 100MHz bandwidth, 1.9nV/√Hz noise, and 2.5mA/amp consumption - making it the only option among the three capable of driving 10-bit+ ADCs at >1MSPS while maintaining sub-µV noise floors.
Availability
LT6204CGN#PBF is available at Aetrix Electronics and suitable for medical instrumentation, industrial sensor interface, DSL line receiver, and portable data acquisition requiring stable component supply across extended production cycles.
Supply support for LT6204CGN#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 LT6204CGN#PBF 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 analog front-ends.
FAQ
What is the maximum supply voltage for LT6204CGN#PBF?
The absolute maximum total supply voltage (V+ to V−) for LT6204CGN#PBF is 12.6V, with recommended operating range from 2.5V to 12.6V. Operation at 12V is validated per datasheet Figure 4 (supply current vs. supply voltage), and thermal derating begins above 10V in the GN package due to θJA = 135°C/W. The LT6204CGN#PBF maintains specified performance at 3V, 5V, and ±5V supplies.
Does LT6204CGN#PBF support true rail-to-rail input common-mode range?
Yes, LT6204CGN#PBF supports rail-to-rail input common-mode range: its inputs operate from V− to V+, including both supply rails, as confirmed in the "Features" section and Electrical Characteristics table (VCM = V− to V+ tested). This enables direct interfacing with sensors or DACs that swing to the supply rails, unlike many op amps requiring ≥100mV headroom.
What is the guaranteed output voltage swing for LT6204CGN#PBF at 20mA load?
At 20mA sink/source load and 5V supply, LT6204CGN#PBF guarantees VOL ≤ 240mV above V− and VOH ≥ V+ − 325mV (per page 5, "ELECTRICAL CHARACTERISTICS", VOL/VOH rows under VS = 5V, ISINK/ISOURCE = 20mA). This delivers >4.6V of output swing in a 5V system - sufficient to drive most 16-bit SAR ADC references without attenuation.
Is LT6204CGN#PBF unity-gain stable?
Yes, LT6204CGN#PBF is explicitly specified as unity-gain stable in the device description and Features list. It remains stable driving capacitive loads up to 100pF without external compensation, verified in Typical Performance Characteristics (Figure G11 shows phase margin >60° at unity gain). This eliminates need for isolation resistors when driving ADC input capacitance or long PCB traces.
What temperature range does the 'C' grade in LT6204CGN#PBF specify?
LT6204CGN#PBF is the commercial-grade version, specified for operation from 0°C to 70°C ambient temperature. Per datasheet Note 4, the 'C' suffix denotes guaranteed performance across this range, with characterization extending to –40°C to 85°C but not production-tested outside 0°C–70°C. The 'I' grade (LT6204IGN#PBF) is required for –40°C to 85°C operation.
LT6204CGN#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:
- 25V/µs
- Gain Bandwidth Product:
- 100 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 3.8 µA
- Voltage - Input Offset:
- 2.6 mV
- Current - Supply:
- 2.8mA (x4 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 2.5 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
LT6204CGN#PBF FAQ
1.How can I place an order for LT6204CGN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6204CGN#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 LT6204CGN#PBF reliable?
The price and inventory of LT6204CGN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6204CGN#PBF is usually 5 days.
3.What payment methods are accepted for LT6204CGN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6204CGN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6204CGN#PBF?
LT6204CGN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6204CGN#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 LT6204CGN#PBF?
For technical support, including LT6204CGN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6204CGN#PBF requirements.
6.How does Aetrix verify that LT6204CGN#PBF is sourced from the original manufacturer or authorized distributors?
All LT6204CGN#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 LT6204CGN#PBF meets industry standards.
7.What is the process for return or replacement of LT6204CGN#PBF?
All LT6204CGN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6204CGN#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 LT6204CGN#PBF part is unused and in its original packaging.
Return procedure for LT6204CGN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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