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Analog Devices Inc. LTC2053IDD#PBF
- Part No.:
- LTC2053IDD#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC2053IDD#PBF.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1 CIRC 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,456
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Product details
Overview
LTC2053IDD#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, and <50nV/°C drift across –40°C to +85°C. Its 2.7V to ±5.5V supply range, 750µA quiescent current, and DFN-8 package make it ideal for high-resolution thermocouple or strain gauge signal conditioning in space-constrained industrial sensors.
For engineers reviewing the LTC2053IDD#PBF datasheet, LTC2053IDD#PBF pinout, LTC2053IDD#PBF application, or LTC2053IDD#PBF equivalent, key selection criteria include guaranteed offset drift performance over temperature, rail-to-rail input/output swing compatibility with low-voltage microcontrollers, internal 3kHz sampling clock operation (no external clock required), and DFN-8 thermal characteristics for embedded analog front-end designs.
Technical Context
The LTC2053IDD#PBF employs 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 architecture eliminates traditional chopper noise folding while maintaining DC precision via correlated double sampling.
It features dual-mode operation: Pin 1 functions as active-low EN (enable) - not CLK - confirming this is the standard LTC2053 variant, not the SYNC version. Gain is set externally via two resistors (RG and reference path), supporting programmability from G = 1 to >1000 without trimming or calibration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±10 µV max at TA = –40°C to +85°C - enables sub-16-bit accuracy in 24-bit DAQ systems without calibration. |
| Offset Drift | ±50 nV/°C max - ensures stable baseline in temperature-varying environments like medical thermometers or automotive cabin sensors. |
| CMRR | 113 dB min at AV = 1, VCM = 0.1V–2.9V - rejects common-mode noise from long sensor cables without gain-dependent degradation. |
| Supply Range | 2.7V single supply or ±5.5V dual supply - supports battery-powered portable instruments and industrial 5V/±5V rails. |
| Quiescent Current | 0.75 mA typical - allows continuous operation in always-on IoT sensor nodes with multi-year battery life. |
| Output Swing | Rail-to-rail (20 mV from rail, RL = 2kΩ) - maximizes dynamic range when interfacing with 3.3V ADCs or SAR converters. |
| Internal Sampling Freq | 3 kHz fixed - defines inherent aliasing floor and sets minimum usable signal bandwidth at ~1.2 kHz (Nyquist). |
Pinout & Package
Package: 8-lead (3mm × 3mm × 0.8mm) plastic DFN with underside metal pad internally connected to V– (PCB connection optional). Thermal resistance θJA = 160°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN | Active-low enable input | Pulls device into shutdown mode (10 µA IQ) when ≥2.5V; must be tied low or controlled by MCU GPIO for normal operation. |
| 2 - –IN | Inverting input terminal | Differential input node; rail-to-rail common-mode range supports direct connection to bridge sensors or thermocouples. |
| 3 - +IN | Noninverting input terminal | Differential input node; matched impedance to –IN minimizes CM-to-DM conversion errors. |
| 4 - V– | Negative supply rail | Reference for internal switched-capacitor front end; underside thermal pad connects here for improved power dissipation. |
| 5 - REF | Output reference voltage | Sets output DC level; can be driven externally (e.g., DAC or filtered reference) to shift output baseline independently of inputs. |
| 6 - RG | Inverting input of internal op amp | Connects to external feedback resistor network; gain = 1 + R2/R1, where R1 ties RG to REF and R2 ties OUT to RG. |
| 7 - OUT | Amplified single-ended output | Rail-to-rail capable; drives 2kΩ loads directly; requires 0.1µF ceramic bypass between V+ and V– per layout guidelines. |
| 8 - V+ | Positive supply rail | Accepts 2.7V to 5.5V (single) or up to ±5.5V (dual); internal regulator powers sampling circuitry and zero-drift core. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input/output | Enables full utilization of supply rails in low-voltage systems (e.g., 3.3V ADCs), eliminating level-shifting components. |
| Zero-drift architecture | Eliminates 1/f noise and long-term drift - critical for DC-coupled applications like electronic scales and medical ECG front ends. |
| 2-resistor gain programming | Supports precise, stable gains from 1 to 1000+ using standard 0.1% metal-film resistors - no potentiometers or laser trimming needed. |
| No external clock required | Internal 3kHz sampling clock simplifies BOM and layout; avoids clock routing noise coupling into sensitive analog paths. |
| Shutdown mode (EN pin) | Reduces supply current to 10 µA - essential for battery-powered devices requiring intermittent measurement cycles. |
Applications
| Thermocouple Amplifiers | Electronic Scales |
|---|---|
Use Scenario: Amplifying µV-level Seebeck voltages from K-type thermocouples in HVAC controllers or furnace monitoring. IC Role / Device Role / Timing Role: Precision instrumentation amplifier converting differential thermocouple output to ratiometric voltage referenced to system ground or isolated reference. Use Value: ±10µV offset and 50nV/°C drift ensure <±0.5°C accuracy over –20°C to +100°C ambient without cold-junction compensation recalibration. |
Use Scenario: Reading millivolt outputs from load-cell bridges in retail checkout scales or industrial weigh modules. IC Role / Device Role / Timing Role: High-CMRR bridge amplifier rejecting power-line interference and cable-induced noise in unshielded installations. Use Value: 113dB CMRR at G=100 maintains 20-bit effective resolution despite 60Hz pickup on 10m sensor cables. |
| Medical Instrumentation | Strain Gauge Amplifiers |
Use Scenario: Front-end amplification for portable ECG or EEG electrodes with dry-contact or Ag/AgCl sensors. IC Role / Device Role / Timing Role: Low-noise, rail-to-rail input instrumentation amplifier conditioning biopotential signals before digitization. Use Value: 2.5µVP-P (0.01Hz–10Hz) noise and rail-to-rail input allow direct interface with electrode bias networks without AC coupling. |
Use Scenario: Signal conditioning for bonded foil strain gauges in structural health monitoring or torque transducers. IC Role / Device Role / Timing Role: Precision differential amplifier rejecting common-mode stress-induced offsets in quarter/half/full Wheatstone bridges. Use Value: Guaranteed <±10µV offset ensures <0.05% full-scale error in 0.1% strain measurements, even after thermal cycling. |
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); higher bandwidth (10MHz); no shutdown pin; 12-lead MSOP package. | Better for high-speed multiplexed DAQ; lacks programmable gain and EN control - less flexible for variable-sensitivity sensor arrays. | Select AD8421ARMZ when bandwidth >100kHz is required and gain is fixed per channel; avoid if DFN-8 footprint or shutdown capability is mandatory. |
| INA333AIDRGT | Zerø-drift, rail-to-rail, 2.7V–5.5V supply; lower quiescent current (50µA); smaller 8-pin VSSOP; G = 1–1000 via single resistor. | Superior for ultra-low-power battery operation; slightly lower CMRR (100dB typ); no EN pin - always-on operation only. | Select INA333AIDRGT for wearable sensors needing <100µA average current; avoid if EN-controlled duty cycling or 113dB CMRR is required. |
Compared with AD8421ARMZ and INA333AIDRGT, the LTC2053IDD#PBF uniquely combines guaranteed ±10µV offset over –40°C to +85°C, integrated EN pin for power gating, and DFN-8 thermal performance - making it optimal for industrial-grade, temperature-stable, space-constrained instrumentation.
Availability
LTC2053IDD#PBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, electronic scales, and medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2053IDD#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 LTC2053 series was designed by Linear Technology (acquired by ADI in 2017) specifically for ultra-precision DC-coupled sensor signal conditioning - emphasizing zero-drift stability, rail-to-rail operation, and minimal external component count in harsh environments.
FAQ
What is the operating temperature range for the LTC2053IDD#PBF?
The LTC2053IDD#PBF is rated for –40°C to +85°C (Industrial grade). This is confirmed by the "IDD" suffix in the part number and the Order Information table, which explicitly lists "–40°C to 85°C" for all LTC2053IDD#PBF variants. Its guaranteed ±10µV input offset and ±50nV/°C drift apply across this full range.
Does the LTC2053IDD#PBF require an external clock?
No, the LTC2053IDD#PBF does not require an external clock. It uses an internal 3kHz sampling clock. Pin 1 is labeled EN (Enable), not CLK - distinguishing it from the LTC2053-SYNC variant. The datasheet states "The LTC2053 requires no external clock," and Figure 1's block diagram confirms internal clock generation for the standard LTC2053 family.
How is gain programmed on the LTC2053IDD#PBF?
Gain is programmed using two external resistors: one (R1) between RG (Pin 6) and REF (Pin 5), and another (R2) between OUT (Pin 7) and RG (Pin 6). The gain equation is G = 1 + R2/R1. This 2-resistor method provides stable, accurate gain setting without trimming or calibration, supporting values from G = 1 to >1000.
What is the purpose of the REF pin (Pin 5) on the LTC2053IDD#PBF?
The REF pin (Pin 5) sets the DC reference level for the output voltage. The output is centered around this voltage: VOUT = G × (V+IN – V–IN) + VREF. It can be tied to ground, a precision voltage reference, or a DAC output - enabling level-shifting, bipolar output generation, or ratiometric referencing in bridge sensor applications.
Can the LTC2053IDD#PBF operate from a single 3.3V supply?
Yes, the LTC2053IDD#PBF supports single-supply operation down to 2.7V. With a 3.3V supply, its rail-to-rail input accepts common-mode voltages from 0V to 3.3V, and its output swings within 20mV of each rail (0.02V to 3.28V into 2kΩ), delivering full dynamic range for interfacing with 3.3V ADCs or microcontrollers.
LTC2053IDD#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 ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x3)
LTC2053IDD#PBF FAQ
1.How can I place an order for LTC2053IDD#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2053IDD#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 LTC2053IDD#PBF reliable?
The price and inventory of LTC2053IDD#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2053IDD#PBF is usually 5 days.
3.What payment methods are accepted for LTC2053IDD#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2053IDD#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2053IDD#PBF?
LTC2053IDD#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2053IDD#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 LTC2053IDD#PBF?
For technical support, including LTC2053IDD#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2053IDD#PBF requirements.
6.How does Aetrix verify that LTC2053IDD#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2053IDD#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 LTC2053IDD#PBF meets industry standards.
7.What is the process for return or replacement of LTC2053IDD#PBF?
All LTC2053IDD#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2053IDD#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 LTC2053IDD#PBF part is unused and in its original packaging.
Return procedure for LTC2053IDD#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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