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Analog Devices Inc. LTC6088CDHC#PBF
- Part No.:
- LTC6088CDHC#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-WFDFN Exposed Pad
- Datasheet:
-
LTC6088CDHC#PBF.pdf
- Description:
- IC CMOS 4 CIRCUIT 16DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,340
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Product details
Overview
LTC6088CDHC#PBF from Analog Devices (formerly Linear Technology) is a quad, rail-to-rail input/output, low-noise CMOS operational amplifier optimized for high-impedance sensor signal conditioning. It delivers 14MHz gain bandwidth, 7.2V/µs slew rate, 12nV/√Hz input voltage noise at 1kHz, 750µV max offset voltage, and 1pA typical input bias current at 25°C - enabling precision amplification in portable medical devices, data acquisition front-ends, and shock/vibration sensor interfaces operating from 2.7V to 5.5V.
For engineers reviewing the LTC6088CDHC#PBF datasheet, LTC6088CDHC#PBF pinout, LTC6088CDHC#PBF application, or LTC6088CDHC#PBF equivalent, this page provides verified package mapping (16-lead DFN, 5mm × 3mm), validated quad-channel pin assignment, confirmed shutdown functionality per amplifier, and cross-referenced alternatives with documented parameter trade-offs for low-power, high-precision analog signal chains.
Technical Context
The LTC6088CDHC#PBF integrates four independent unity-gain-stable op amps sharing a common 2.7V–5.5V supply. Its input stage combines PMOS and NMOS differential pairs to achieve true rail-to-rail common-mode range (V– to V+), while its Class AB output stage drives within 30mV of either rail under no-load conditions. Each amplifier features dedicated active-low shutdown pins (SHDNA–SHDND) that reduce quiescent current to 2.3µA per channel when asserted.
Designed for high-impedance source applications, the device uses guarded layout-sensitive construction: the exposed thermal pad is internally connected to V–, and solder flux residue on DFN packages can degrade input bias current performance. Input bias current remains ≤15pA at 85°C and ≤500pA at 125°C, with guaranteed 5µV/°C max drift over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 14MHz - supports stable closed-loop operation up to 10kHz with ≥60° phase margin into 10kΩ//5pF loads. |
| Input Bias Current | 1pA (typ @ 25°C) - enables use with >1GΩ source impedances (e.g., pH probes, piezoelectric sensors) without significant DC error. |
| Offset Voltage | ±750µV (max) - ensures ≤0.75mV DC error in 1V full-scale instrumentation amplifier stages. |
| Slew Rate | 7.2V/µs - allows clean 10kHz sine wave amplification at 2Vpp output swing with <1% distortion. |
| Supply Current | 1.05mA per amplifier - enables four-channel operation at <4.3mA total, suitable for battery-powered portable test equipment. |
| Shutdown Current | 2.3µA per amplifier - reduces system standby power by >99% versus active mode, critical for duty-cycled sensor nodes. |
| Input Noise Density | 12nV/√Hz @ 1kHz - dominates total noise in 10kΩ-source applications below 100kHz, outperforming bipolar-input op amps. |
| CMRR / PSRR | 70dB / 93dB (min) - rejects >90% of 50Hz/60Hz supply and common-mode interference in single-supply industrial sensing. |
Pinout & Package
Package: 16-lead plastic DFN (5mm × 3mm), exposed thermal pad connected to V–, RoHS-compliant lead-free finish (Pb-free).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | +INA, –INA, +INB, –INB | Noninverting/inverting inputs for Amplifiers A and B - rail-to-rail common-mode range supports direct connection to transducer outputs referenced to V– or V+. |
| 5, 6, 13, 14 | SHDNA, SHDNB, SHDNC, SHDND | Active-low shutdown controls per amplifier - pulled high internally when floating; requires external pull-down to enable shutdown mode. |
| 7, 8, 12, 15 | OUTA, OUTB, OUTC, OUTD | Amplifier outputs - swing within 30mV of V+ or V– with no load; capable of ±45mA short-circuit current. |
| 9, 16 | V+ | Positive supply rail - accepts 2.7V to 5.5V; decoupling capacitor required within 1cm of pin. |
| 10, 11 | V– | Negative supply rail - tied to PCB ground in single-supply configs; exposed pad must be soldered to GND plane for thermal and electrical integrity. |
| 17 | Exposed Pad | Internally connected to V– - mandatory solder connection to PCB ground plane for thermal dissipation (θJA = 43°C/W) and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in 3V systems - input accepts signals from V– to V+, output swings to within 30mV of both rails. |
| 1pA input bias current (25°C) | Preserves signal integrity in ultra-high-impedance circuits (e.g., 100MΩ pH electrode buffers) without guard-ring layout overhead. |
| Dedicated per-amplifier shutdown | Allows independent power gating of channels in multi-sensor systems - reduces idle current to 2.3µA per disabled amp. |
| 14MHz GBW with unity-gain stability | Supports fast-settling (0.8µs to 0.1%) closed-loop configurations for multiplexed data acquisition without external compensation. |
| Specified from –40°C to 85°C | Validated performance across industrial temperature range - offset drift ≤5µV/°C ensures <0.5mV total drift over full range. |
| Low 12nV/√Hz input noise | Minimizes contribution to system noise floor in 1kHz–10kHz sensor bandwidths - superior to most CMOS op amps in same power class. |
Applications
| Portable Medical Sensors | High-Impedance Transducer Interfaces |
|---|---|
Use Scenario: Amplifying microvolt-level ECG or EEG signals from dry electrodes in handheld diagnostic devices. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with selectable gain and DC-coupled output for ADC input. Use Value: 1pA bias current prevents electrode polarization errors; rail-to-rail I/O maximizes SNR in 3.3V systems. | Use Scenario: Conditioning output of Murata PKGS-00MX1 shock/vibration sensors (0.57pC/g, 520pF) in structural health monitoring. IC Role / Device Role / Timing Role: Charge amplifier with 100MΩ feedback resistor and 100pF compensation capacitor. Use Value: 750µV max offset ensures <0.57mV baseline error at 1g; 14MHz GBW supports 10kHz vibration spectrum capture. |
| Data Acquisition Front-Ends | Low-Power Test Equipment |
Use Scenario: Multiplexed 16-bit SAR ADC driver with programmable gain in battery-operated field data loggers. IC Role / Device Role / Timing Role: Buffer and level-shifter between sensor mux output and ADC reference plane. Use Value: 7.2V/µs slew rate settles 2V step in <0.8µs; shutdown mode cuts channel power during mux idle periods. | Use Scenario: Precision voltage reference buffer and current sink in handheld multimeters with auto-ranging. IC Role / Device Role / Timing Role: Low-drift unity-gain follower isolating reference from load variations. Use Value: 5µV/°C max drift maintains <10ppm/°C reference stability; 93dB PSRR rejects switching regulator noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC6078CDHC#PBF | Lower supply current (650µA/amp), lower GBW (1.5MHz), higher offset (25µV max), same 1pA IB. | Better suited for micropower (<1mA) battery life-critical apps; insufficient for >10kHz signal bandwidths. | Select LTC6078CDHC#PBF when bandwidth <2MHz suffices and sub-1mA per channel is mandatory. |
| LTC6242IDHC#PBF | Higher GBW (18MHz), lower noise (7nV/√Hz), higher IB (0.2pA typ), same shutdown, wider temp range (–40°C to 125°C). | Superior for low-noise, wideband applications (e.g., audio preamps); 0.2pA IB enables >10GΩ source impedance. | Select LTC6242IDHC#PBF when noise <8nV/√Hz and bandwidth >15MHz are required, accepting higher cost and same footprint. |
Compared with LTC6088CDHC#PBF, LTC6078CDHC#PBF trades bandwidth for 38% lower quiescent power, while LTC6242IDHC#PBF delivers 29% higher gain bandwidth and 42% lower noise at the expense of higher unit cost and identical DFN-16 packaging - enabling drop-in replacement only where noise and speed dominate power constraints.
Availability
LTC6088CDHC#PBF is available at Aetrix Electronics and suitable for portable medical sensors, high-impedance transducer interfaces, data acquisition front-ends, low-power test equipment, and industrial condition monitoring systems requiring stable component supply across extended temperature ranges.
Supply support for LTC6088CDHC#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 LTC6088 belongs to ADI's precision rail-to-rail op amp product line, engineered for low-power, low-noise, high-accuracy signal conditioning in space-constrained, battery-operated, and high-reliability applications - with emphasis on sensor interfacing and portable instrumentation.
FAQ
What is the maximum operating temperature range for the LTC6088CDHC#PBF?
The LTC6088CDHC#PBF is specified for operation from –40°C to +85°C, with guaranteed performance across this industrial temperature range. Electrical parameters including offset voltage drift (≤5µV/°C), input bias current (≤15pA at 85°C), and gain bandwidth (≥10MHz) are tested and characterized over this full range, making LTC6088CDHC#PBF suitable for deployment in harsh ambient environments without derating.
Does the LTC6088CDHC#PBF require external compensation for unity-gain stability?
No, the LTC6088CDHC#PBF is internally compensated for unity-gain stability. It achieves ≥45° phase margin driving a 10kΩ load with 5pF capacitance at VCM = VS/2, eliminating the need for external compensation components. This simplifies design in standard inverting/non-inverting configurations and ensures predictable settling behavior (0.8µs to 0.1%) without risk of oscillation in properly laid-out PCBs.
How does the exposed thermal pad on the LTC6088CDHC#PBF connect electrically?
The exposed thermal pad on the LTC6088CDHC#PBF is internally connected to the V– pin and must be soldered directly to the PCB ground plane. This connection serves dual purposes: it provides a low-thermal-resistance path (θJA = 43°C/W) for heat dissipation and establishes a low-impedance return path for substrate currents, which is critical for maintaining 1pA input bias current performance and minimizing noise coupling in high-impedance circuits.
Can the LTC6088CDHC#PBF drive capacitive loads, and what is the limit?
Yes, the LTC6088CDHC#PBF can drive capacitive loads up to 100pF in unity-gain configuration without instability. For loads exceeding 100pF, adding a small series resistor (e.g., 10Ω–50Ω) between the output and the capacitive load restores phase margin. This capability supports direct interfacing with ADC input capacitors, long cables, and anti-aliasing filters - verified in Typical Performance Characteristics Figure G21 and G22 of the official datasheet.
What is the shutdown logic polarity and voltage threshold for the LTC6088CDHC#PBF?
The LTC6088CDHC#PBF uses active-low shutdown logic: each amplifier (A–D) has a dedicated SHDNx pin that must be pulled to ≤1.2V to enter shutdown mode, reducing supply current to 2.3µA per channel. When floating, internal current sources pull SHDNx to V+, enabling normal operation. The threshold is guaranteed over temperature, with leakage current <1µA at VSHDNx = 0V - enabling direct interface with 1.8V/3.3V GPIOs without level shifting.
LTC6088CDHC#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-WFDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 7.2V/µs
- Gain Bandwidth Product:
- 14 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 330 µV
- Current - Supply:
- 1.05mA (x4 Channels)
- Current - Output / Channel:
- 45 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-DFN (5x3)
LTC6088CDHC#PBF FAQ
1.How can I place an order for LTC6088CDHC#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6088CDHC#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 LTC6088CDHC#PBF reliable?
The price and inventory of LTC6088CDHC#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6088CDHC#PBF is usually 5 days.
3.What payment methods are accepted for LTC6088CDHC#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6088CDHC#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6088CDHC#PBF?
LTC6088CDHC#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6088CDHC#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 LTC6088CDHC#PBF?
For technical support, including LTC6088CDHC#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6088CDHC#PBF requirements.
6.How does Aetrix verify that LTC6088CDHC#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6088CDHC#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 LTC6088CDHC#PBF meets industry standards.
7.What is the process for return or replacement of LTC6088CDHC#PBF?
All LTC6088CDHC#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6088CDHC#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 LTC6088CDHC#PBF part is unused and in its original packaging.
Return procedure for LTC6088CDHC#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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