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Analog Devices Inc. LTC2053CDD#PBF
- Part No.:
- LTC2053CDD#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC2053CDD#PBF.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1 CIRC 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:279
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Product details
Overview
LTC2053CDD#PBF from Analog Devices (formerly Linear Technology) is a precision, rail-to-rail, zero-drift instrumentation amplifier with resistor-programmable gain. It delivers 116dB CMRR independent of gain, ≤10µV input offset voltage, <50nV/°C drift, and operates from 2.7V single supply or ±5.5V dual supply - ideal for thermocouple amplification in industrial sensor front-ends.
For engineers reviewing the LTC2053CDD#PBF datasheet, LTC2053CDD#PBF pinout, LTC2053CDD#PBF application, or LTC2053CDD#PBF equivalent, key selection criteria include its DFN-8 package, EN/CLK pin behavior (EN on LTC2053 variant), rail-to-rail I/O, 3kHz internal sampling frequency, and guaranteed performance across 0°C to 70°C.
Technical Context
The LTC2053CDD#PBF uses charge-balanced sampled-data techniques to convert differential input voltage into a single-ended signal, which is then amplified by an internal zero-drift op amp. Its CMRR remains stable at 116dB regardless of gain setting, and input common-mode range extends rail-to-rail.
Gain is set externally via two resistors (R1/R2) connected to RG and REF pins, enabling precise programmability from G = 1 to >1000. The device features an active-low enable (EN) pin (Pin 1), not a clock input - distinguishing it from the LTC2053-SYNC variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ≤±10µV max - enables sub-16-bit DC accuracy without calibration in strain gauge or thermocouple circuits. |
| Offset Drift | <±50nV/°C - ensures stable baseline over temperature in medical instrumentation and precision scales. |
| CMRR | 116dB typical, independent of gain - rejects noise from shared power rails or EMI-coupled interference in noisy industrial environments. |
| Supply Range | 2.7V to ±5.5V - supports battery-powered portable sensors and dual-supply industrial PLC analog inputs. |
| Output Swing | Rail-to-rail (e.g., 0.02V to 2.98V on 3V supply) - maximizes dynamic range for ADCs with limited input voltage windows. |
| Input Noise | 2.5µVP-P (0.01Hz–10Hz) - critical for low-frequency, high-resolution data acquisition in electronic weighing systems. |
| Supply Current | 0.75mA typical - allows continuous operation in always-on sensor nodes with constrained power budgets. |
Pinout & Package
The LTC2053CDD#PBF is housed in an 8-lead (3mm × 3mm) plastic DFN package with underside thermal pad internally connected to V–. PCB connection to the pad is optional but recommended for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EN) | Active-low enable input | Drives device into shutdown mode (<10µA current) when pulled high; leaves amplifier operational when low or floating. |
| 2 (–IN) | Inverting input | Differential input terminal; rail-to-rail capable; requires matched source impedance to +IN for optimal CMRR. |
| 3 (+IN) | Noninverting input | Differential input terminal; rail-to-rail capable; forms bridge interface with –IN in strain gauge applications. |
| 4 (V–) | Negative supply | Reference for internal switched-capacitor front-end and output stage; connects to thermal pad. |
| 5 (REF) | Output reference voltage | Sets DC level of single-ended output; used with RG to define gain; must be within |VIN – VREF| ≤ 5.5V. |
| 6 (RG) | Internal op-amp inverting input | Connects external feedback resistor (R2); gain = 1 + R2/R1 where R1 ties REF to ground or bias network. |
| 7 (OUT) | Amplifier output | Single-ended, rail-to-rail output; drives 2kΩ load to within 20mV of rails; no phase reversal under overload. |
| 8 (V+) | Positive supply | Power rail for internal circuitry; requires 0.1µF ceramic bypass capacitor directly to V– per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Eliminates 1/f noise and long-term drift - maintains calibration integrity over years in unattended monitoring systems. |
| Resistor-programmable gain | Two external resistors set gain from 1 to 1000+ without trimming or digital control - simplifies BOM and reduces layout complexity. |
| Rail-to-rail input/output | Enables full utilization of supply voltage headroom - essential for low-voltage battery-powered sensors and single-supply data loggers. |
| Internal 3kHz sampling clock | No external clock required - reduces system-level timing coordination overhead and eliminates clock distribution noise coupling. |
| Shutdown mode (EN pin) | Reduces quiescent current to 10µA - extends battery life in intermittent-sampling IoT edge nodes. |
Applications
| Thermocouple Amplifiers | Electronic Scales |
|---|---|
Use Scenario: Amplifying µV-level Seebeck voltages from K-type thermocouples in furnace temperature controllers. IC Role / Device Role / Timing Role: Precision instrumentation amplifier providing cold-junction compensation-ready output referenced to system ground or ADC reference. Use Value: 10µV offset and 50nV/°C drift ensure ±0.1°C measurement accuracy over 0–70°C ambient without software correction. | Use Scenario: Reading mV-level outputs from load-cell bridges in retail checkout scales. IC Role / Device Role / Timing Role: Low-noise, high-CMRR front-end converting differential bridge signals into single-ended ADC inputs. Use Value: 2.5µVP-P (0.01Hz–10Hz) noise and rail-to-rail swing maximize effective resolution of 24-bit sigma-delta ADCs. |
| Medical Instrumentation | Strain Gauge Amplifiers |
Use Scenario: Signal conditioning for ECG electrode interfaces requiring high common-mode rejection of 50/60Hz mains interference. IC Role / Device Role / Timing Role: Front-end IA rejecting electrode offset and motion artifacts while preserving low-frequency biopotential waveforms. Use Value: 116dB CMRR independent of gain ensures consistent noise rejection across programmable gain settings during patient monitoring. | Use Scenario: Amplifying microstrain-induced resistance changes in structural health monitoring sensors on bridges or aircraft. IC Role / Device Role / Timing Role: High-stability gain block interfacing quarter-bridge configurations with precision ADCs. Use Value: Gain error ≤0.01% and nonlinearity ≤10ppm support NIST-traceable calibration in metrology-grade test equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar instrumentation amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8421ARMZ | Fixed gain options (10, 100, 1000); no resistor-programmable gain; higher bandwidth (12MHz vs 200kHz). | Better suited for high-speed, fixed-gain applications like vibration analysis; less flexible for multi-range sensor systems. | Select AD8421ARMZ when gain stability at high frequencies outweighs need for programmability. |
| INA333AIDRGT | Auto-zero architecture (not zero-drift); 25µV max offset; 0.1µV/°C drift; lower supply current (50µA). | Optimized for ultra-low-power battery devices; trades offset/drift performance for energy efficiency in wearable sensors. | Select INA333AIDRGT when sub-100nA shutdown current and minimal board space are prioritized over ultimate DC precision. |
Compared with AD8421ARMZ and INA333AIDRGT, the LTC2053CDD#PBF uniquely combines resistor-programmable gain, 10µV offset, and rail-to-rail operation in a compact DFN package - making it optimal for cost-sensitive, multi-sensor industrial platforms requiring field recalibration.
Availability
LTC2053CDD#PBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, electronic scales, and medical instrumentation requiring stable component supply across extended production lifecycles.
Supply support for LTC2053CDD#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 acquired Linear Technology in 2017 and maintains its precision analog portfolio, including zero-drift and instrumentation amplifiers designed for metrology-grade signal integrity.
The LTC2053 product line targets high-accuracy sensor signal conditioning in industrial, medical, and test equipment - emphasizing ultra-low offset, rail-to-rail operation, and simplified gain configuration.
FAQ
What is the function of Pin 1 on the LTC2053CDD#PBF?
Pin 1 on the LTC2053CDD#PBF is the active-low Enable (EN) pin. When pulled low (≤0.5V), the device operates normally; when pulled high (≥2.5V), it enters shutdown mode drawing ≤10µA. This differs from the LTC2053-SYNC variant, where Pin 1 serves as a clock input. The LTC2053CDD#PBF does not require an external clock.
Does the LTC2053CDD#PBF support rail-to-rail input and output simultaneously?
Yes, the LTC2053CDD#PBF supports rail-to-rail input common-mode voltage (from V– to V+) and rail-to-rail output swing (e.g., within 20mV of V– and V+). This capability is confirmed across all supply conditions (2.7V single, ±5.5V dual) and enables full utilization of ADC input ranges in low-voltage systems.
How is gain programmed on the LTC2053CDD#PBF?
Gain on the LTC2053CDD#PBF is set using two external resistors: R1 between REF (Pin 5) and ground (or bias network), and R2 between RG (Pin 6) and REF. The gain equation is G = 1 + R2/R1. This resistor-programmable architecture avoids digital interfaces or trim pots, supporting gains from 1 to >1000 with ≤0.01% error.
What is the maximum allowable voltage difference between input pins and REF on the LTC2053CDD#PBF?
The absolute maximum voltage difference between either input pin (+IN or –IN) and the REF pin is ±5.5V. Exceeding this violates Absolute Maximum Ratings and risks permanent damage. For example, with REF = 0V, inputs must stay within ±5.5V; with REF = 2.5V, inputs must remain between –3V and +8V.
Is the LTC2053CDD#PBF compatible with 3.3V logic-level microcontrollers for EN pin control?
Yes, the LTC2053CDD#PBF EN pin accepts standard 3.3V logic: VIH ≥ 2.5V (ensuring reliable disable with 3.3V GPIO high) and VIL ≤ 0.5V (ensuring reliable enable with 3.3V GPIO low). Its input current is ≤10µA, placing negligible load on MCU outputs - enabling direct interface without level-shifting.
LTC2053CDD#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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x3)
LTC2053CDD#PBF FAQ
1.How can I place an order for LTC2053CDD#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2053CDD#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 LTC2053CDD#PBF reliable?
The price and inventory of LTC2053CDD#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2053CDD#PBF is usually 5 days.
3.What payment methods are accepted for LTC2053CDD#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2053CDD#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2053CDD#PBF?
LTC2053CDD#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2053CDD#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 LTC2053CDD#PBF?
For technical support, including LTC2053CDD#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2053CDD#PBF requirements.
6.How does Aetrix verify that LTC2053CDD#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2053CDD#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 LTC2053CDD#PBF meets industry standards.
7.What is the process for return or replacement of LTC2053CDD#PBF?
All LTC2053CDD#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2053CDD#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 LTC2053CDD#PBF part is unused and in its original packaging.
Return procedure for LTC2053CDD#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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