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Analog Devices Inc. LTC2053HDD#PBF
- Part No.:
- LTC2053HDD#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC2053HDD#PBF.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1 CIRC 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,244
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Product details
Overview
LTC2053HDD#PBF from Analog Devices (formerly Linear Technology) is a precision, rail-to-rail, zero-drift instrumentation amplifier with resistor-programmable gain. It features 10µV max input offset voltage, <50nV/°C drift over –40°C to 125°C, 116dB CMRR independent of gain, and operates from 2.7V single supply or ±5.5V dual supplies. It is used in high-accuracy thermocouple amplification and strain gauge signal conditioning where thermal stability and low DC error are critical.
For engineers reviewing the LTC2053HDD#PBF datasheet, LTC2053HDD#PBF pinout, LTC2053HDD#PBF application, or LTC2053HDD#PBF equivalent, key selection criteria include guaranteed H-grade temperature performance (–40°C to 125°C), DFN-8 package footprint, EN/CLK pin functionality, rail-to-rail input/output swing, and 3kHz internal sampling frequency for low-frequency precision measurement systems.
Technical Context
The LTC2053HDD#PBF employs charge-balanced sampled-data front-end architecture to convert differential input voltage into a single-ended signal, followed by amplification via an internal zero-drift op amp. Its gain is set by two external resistors (RG and R1), enabling precise programmability without trimming.
It uses internal switched-capacitor sampling at 3kHz, with EN pin (Pin 1) enabling shutdown mode (10µA quiescent current). The REF pin (Pin 5) establishes output common-mode level, while RG (Pin 6) serves as the inverting input of the internal op amp-enabling direct gain control via external feedback network.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±10 µV max - ensures sub-16-bit DC accuracy in 24-bit data acquisition systems without calibration. |
| Offset Drift | ±50 nV/°C max (–40°C to 125°C) - enables stable operation in automotive under-hood or industrial motor-control environments. |
| CMRR | 85 dB min at VCM = 0.1V–2.9V (H-grade) - maintains rejection of power-supply and EMI-induced common-mode noise across full temp range. |
| Supply Range | 2.7V to ±5.5V - supports battery-powered portable instruments and wide-input industrial sensors. |
| Output Swing | Rail-to-rail (20 mV from rails, RL = 2kΩ) - maximizes dynamic range in low-voltage single-supply systems. |
| Supply Current | 0.95–1.3 mA - balances ultra-low offset with moderate power for always-on sensor front ends. |
| Sampling Frequency | 3 kHz internal - sets bandwidth limit and aliasing floor for DC–100 Hz precision measurements. |
Pinout & Package
Package: 8-lead (3mm × 3mm × 0.8mm) plastic DFN (DD package), underside metal pad internally connected to V– (optional PCB connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Active-low enable input | Drives device into 10 µA shutdown state when high; required for power-gated sensor nodes. |
| –IN (Pin 2) | Inverting input | Differential input node; accepts rail-to-rail common-mode voltage up to V+ – 1.3V. |
| +IN (Pin 3) | Noninverting input | Differential input node; matched bias current minimizes offset error from source resistance mismatch. |
| V– (Pin 4) | Negative supply | Reference for internal sampling switches and op amp; underside thermal pad connects here. |
| REF (Pin 5) | Output reference voltage | Sets output common-mode level; decoupling to V– improves PSRR and noise rejection. |
| RG (Pin 6) | Internal op amp inverting input | External feedback point for gain-setting resistor network (G = 1 + R2/R1). |
| OUT (Pin 7) | Amplified output | Single-ended, rail-to-rail output; drives 2kΩ load with <20 mV headroom. |
| V+ (Pin 8) | Positive supply | Accepts 2.7V to 5.5V (single) or up to ±5.5V (dual); requires 0.1 µF ceramic bypass to V–. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input/output | Enables full utilization of supply rails in low-voltage (e.g., 3V) systems without signal clipping or headroom loss. |
| 2-resistor programmable gain | Eliminates need for laser-trimmed internal resistors; allows field-adjustable gain (G = 1 + R2/R1) with <0.01% gain error. |
| H-grade temperature range | Specified from –40°C to +125°C - qualified for engine control units, downhole tools, and industrial PLC analog I/O modules. |
| Zero-drift architecture | Chopper-stabilized core achieves <50 nV/°C drift - removes need for periodic system recalibration in long-duration monitoring. |
| No external clock required | Self-timed 3 kHz sampling eliminates clock routing, jitter, and EMI concerns in compact PCB layouts. |
Applications
| Thermocouple Amplification | Strain Gauge Signal Conditioning |
|---|---|
Use Scenario: Amplifying µV-level Seebeck voltage from K-type thermocouples in furnace temperature controllers. IC Role / Device Role / Timing Role: Precision instrumentation amplifier with programmable gain and REF-biased output for ADC interfacing. Use Value: 10 µV offset and <50 nV/°C drift ensure ±0.5°C accuracy over –40°C to 125°C ambient without cold-junction compensation hardware. | Use Scenario: Reading bridge outputs from load cells in industrial weighing scales with 24-bit sigma-delta ADCs. IC Role / Device Role / Timing Role: Low-noise, high-CMRR front-end amplifier converting differential mV signals to single-ended ratiometric output. Use Value: 116 dB CMRR independent of gain rejects common-mode noise from PWM motor drives sharing same chassis ground. |
| Medical Patient Monitoring | High-Resolution Data Acquisition |
Use Scenario: Biopotential signal conditioning (ECG, EMG) in portable diagnostic devices powered by Li-ion batteries. IC Role / Device Role / Timing Role: Rail-to-rail input/output amplifier operating from 3V supply with shutdown control for power cycling. Use Value: 2.5 µVP-P (0.01–10 Hz) noise and 750 µA typical supply current extend battery life while preserving signal fidelity. | Use Scenario: Front-end for 24-bit precision DAQ systems measuring pressure transducers and RTDs in test benches. IC Role / Device Role / Timing Role: Programmable-gain, zero-drift amplifier with REF pin for flexible output referencing to ADC reference or system ground. Use Value: Gain nonlinearity ≤10 ppm and 0.001% gain error support uncalibrated 16+ ENOB performance across multiple gain ranges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar instrumentation amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8429ARZ | Fixed gain (1000 V/V), no external gain resistors; higher bandwidth (4.3 MHz), higher supply current (3.6 mA). | Better for high-speed, fixed-gain medical imaging; unsuitable for variable-gain sensor interfaces. | Select AD8429ARZ only when fixed high gain and speed outweigh need for flexibility and low power. |
| INA333AIDRGT | Auto-zero architecture (not chopper-stabilized); 25 µV max offset, 0.1 µV/°C drift; smaller 8-pin VSSOP package. | Lower cost for commercial-grade (–40°C to 125°C not guaranteed); less robust against EMI in noisy industrial settings. | Choose INA333AIDRGT for cost-sensitive consumer or lab equipment where H-grade qualification is unnecessary. |
Compared with AD8429ARZ and INA333AIDRGT, LTC2053HDD#PBF uniquely combines H-grade temperature qualification, resistor-programmable gain, and ultra-low drift in a space-efficient DFN package-making it optimal for automotive, aerospace, and industrial systems requiring long-term DC stability without recalibration.
Availability
LTC2053HDD#PBF is available at Aetrix Electronics and suitable for thermocouple amplification, strain gauge signal conditioning, medical patient monitoring, and high-resolution data acquisition requiring stable component supply across extended temperature ranges.
Supply support for LTC2053HDD#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, acquired Linear Technology in 2017.
The LTC2053 product line delivers precision instrumentation amplifiers optimized for DC-critical applications-including sensor front-ends, industrial process control, and medical diagnostics-where offset, drift, and CMRR dominate system accuracy.
FAQ
What is the maximum operating temperature range for LTC2053HDD#PBF?
The LTC2053HDD#PBF is rated for operation from –40°C to +125°C, meeting the H-grade specification defined in the datasheet. This extended range is validated across all electrical parameters including input offset voltage, CMRR, and supply current-making LTC2053HDD#PBF suitable for under-hood automotive, downhole oil/gas, and industrial motor-drive applications where ambient temperatures exceed standard industrial limits.
Does LTC2053HDD#PBF require an external clock to operate?
No, LTC2053HDD#PBF does not require an external clock-it uses an internal 3 kHz sampling oscillator. Pin 1 functions as an active-low EN (enable) pin, not a clock input. The LTC2053-SYNC variant (e.g., LTC2053HMS8-SYNC#PBF) supports external clock synchronization, but LTC2053HDD#PBF is the non-synchronized version optimized for simplicity and reduced EMI sensitivity in standalone precision measurement designs.
How is gain programmed on LTC2053HDD#PBF?
Gain on LTC2053HDD#PBF is set using two external resistors: one between RG (Pin 6) and OUT (Pin 7), and another between RG and REF (Pin 5). The gain equation is G = 1 + R2/R1, where R2 is the resistor from RG to OUT and R1 is from RG to REF. This 2-resistor configuration provides precise, trim-free gain adjustment from unity to >1000, with guaranteed gain error ≤0.01% at G = 1.
What is the function of the REF pin on LTC2053HDD#PBF?
The REF pin (Pin 5) on LTC2053HDD#PBF sets the output common-mode voltage level. The amplifier output is referenced to this pin, allowing flexible output biasing-e.g., to match an ADC's reference voltage or shift output into a specific range. Decoupling REF to V– with a 0.1 µF capacitor improves PSRR and reduces noise coupling, especially critical in single-supply configurations where REF is tied to mid-supply.
Can LTC2053HDD#PBF be used with dual ±5V supplies?
Yes, LTC2053HDD#PBF supports dual ±5V supplies (total supply voltage ≤11V). When operated with ±5V, the absolute maximum voltage difference between any input pin (+IN or –IN) and REF must not exceed ±5.5V. For rail-to-rail input operation, REF should be set to 0V. Input common-mode range extends from V– to V+, and output swings within 20 mV of either rail-enabling full utilization of the ±5V range in bipolar sensor interfaces like bridge-based pressure transducers.
LTC2053HDD#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.2V/µs
- Gain Bandwidth Product:
- 200 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 4 nA
- Voltage - Input Offset:
- 5 µV
- Current - Supply:
- 950µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 11 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x3)
LTC2053HDD#PBF FAQ
1.How can I place an order for LTC2053HDD#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2053HDD#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 LTC2053HDD#PBF reliable?
The price and inventory of LTC2053HDD#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2053HDD#PBF is usually 5 days.
3.What payment methods are accepted for LTC2053HDD#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2053HDD#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2053HDD#PBF?
LTC2053HDD#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2053HDD#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 LTC2053HDD#PBF?
For technical support, including LTC2053HDD#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2053HDD#PBF requirements.
6.How does Aetrix verify that LTC2053HDD#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2053HDD#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 LTC2053HDD#PBF meets industry standards.
7.What is the process for return or replacement of LTC2053HDD#PBF?
All LTC2053HDD#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2053HDD#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 LTC2053HDD#PBF part is unused and in its original packaging.
Return procedure for LTC2053HDD#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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