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Analog Devices Inc. LTC2453IDDB#TRPBF
- Part No.:
- LTC2453IDDB#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC2453IDDB#TRPBF.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,699
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Product details
Overview
LTC2453IDDB#TRPBF from Analog Devices (formerly Linear Technology) is a fully differential, 16-bit delta-sigma analog-to-digital converter with I²C interface, ±(VREF⁺–VREF⁻) input range, 60 sps conversion rate, and integrated oscillator. It operates from 2.7V to 5.5V, delivers <2 LSB offset error and <4 LSB full-scale error, and targets precision sensor signal conditioning in space-constrained industrial monitoring systems.
For engineers reviewing the LTC2453IDDB#TRPBF datasheet, LTC2453IDDB#TRPBF pinout, LTC2453IDDB#TRPBF application, or LTC2453IDDB#TRPBF equivalent, this page provides verified package mapping (8-lead 3mm × 2mm DFN), confirmed I²C timing compliance (400 kHz Fast Mode), validated sleep current (<0.2 µA), calibrated INL performance (±2 LSB max), and real-world input leakage specs (±10 nA at IN⁺/IN⁻).
Technical Context
The LTC2453IDDB#TRPBF implements a proprietary delta-sigma modulator with decimating sinc filter and continuous internal offset/full-scale calibration-ensuring accuracy over –40°C to +85°C without user intervention. Its single-cycle conversion settling eliminates latency in multiplexed applications.
It uses an internal oscillator (no external crystal required), supports true differential reference inputs (VREF⁺/VREF⁻ spanning GND to VCC), and features ultra-low average input sampling current (50 nA) with negligible inter-pin leakage-enabling direct RC antialiasing without buffer amplifiers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit signed output (0–65535 decimal), no missing codes guaranteed |
| Conversion Rate | 60 samples per second-fixed rate, no configuration needed |
| Offset Error | ±2 LSB max over –40°C to +85°C-calibrated continuously in background |
| Full-Scale Error | ±4 LSB max over temperature-includes gain drift compensation |
| Supply Current | 800 µA during conversion; <0.2 µA in sleep mode-enables battery-powered operation |
| I²C Interface | Standard/Fast Mode up to 400 kHz; fixed 7-bit address 0010100 (0x24) |
| Differential Input Range | ±(VREF⁺ – VREF⁻), with VREF⁺ ≥ VREF⁻ + 2.5V-supports rail-to-rail common-mode |
| Input Sampling Current | Average 50 nA-allows direct connection of 1 kΩ–0.1 µF RC filters with <1 LSB error |
Pinout & Package
Package: 8-lead, 3 mm × 2 mm plastic DFN (DDB) with exposed pad (Pin 9 = GND, must be soldered). Operating temperature range: –40°C to +85°C (I-grade).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Ground reference | Primary analog/digital ground return; connects to exposed pad (Pin 9) |
| REF– (Pin 2) | Negative reference input | Differential reference low; valid from 0 V to (VCC – 2.5 V) |
| REF+ (Pin 3) | Positive reference input | Differential reference high; valid from (VCC – 2.5 V) to VCC |
| VCC (Pin 4) | Power supply | 2.7 V to 5.5 V analog/digital supply; requires 10 µF || 0.1 µF local decoupling |
| IN– (Pin 5) | Negative analog input | Differential input terminal; DC leakage ±10 nA, sampling capacitance 0.35 pF |
| IN+ (Pin 6) | Positive analog input | Differential input terminal; identical leakage/capacitance specs as IN– |
| SCL (Pin 7) | I²C clock input | Slave-only interface; accepts 0–400 kHz clock; no internal pull-up |
| SDA (Pin 8) | I²C bidirectional data | Open-drain output requiring external 1.7 kΩ pull-up to VCC |
Key Features
| Feature | Design Value |
|---|---|
| No-latency multiplexed operation | Single-cycle conversion settling enables immediate channel switching without settling delay |
| Auto-sleep power management | Enters <0.2 µA sleep after conversion; resumes on I²C read-average power <50 µW at 1 Hz read rate |
| Integrated oscillator | Eliminates external crystal or clock source-reduces BOM count and layout area |
| Proprietary input sampling | Reduces average input current by orders of magnitude vs conventional delta-sigma ADCs |
| Continuous calibration | Internal offset and full-scale correction runs transparently every conversion-no user overhead |
| Negligible inter-pin leakage | <10 nA between IN+ and IN–-preserves differential signal integrity without guard traces |
Applications
| System Monitoring | Environmental Monitoring |
|---|---|
|
Use Scenario: Real-time voltage/current/temperature tracking in PLC backplanes and power distribution units. IC Role / Device Role / Timing Role: Precision differential ADC capturing sensor outputs with minimal external components. Use Value: 16-bit resolution and <2 LSB INL enable detection of sub-millivolt drifts in 24V supply rails over temperature. |
Use Scenario: Battery-powered air quality nodes measuring thermistor, humidity, and gas sensor bridges. IC Role / Device Role / Timing Role: Low-power, self-calibrating ADC interfacing directly to passive sensors via RC filters. Use Value: 50 nA input current and <0.2 µA sleep current extend coin-cell life beyond 5 years at 1 sample/minute. |
| Direct Temperature Measurements | Industrial Process Control |
|
Use Scenario: RTD or thermocouple signal conditioning in compact field transmitters with 4–20 mA loop power. IC Role / Device Role / Timing Role: Differential front-end digitizing mV-level thermal EMFs with programmable reference scaling. Use Value: ±(VREF⁺–VREF⁻) input range and 31 LSB overrange/underrange capability tolerate cold-junction offsets and sensor faults. |
Use Scenario: Closed-loop control of valve position, pressure, or flow using strain gauge or capacitive sensors. IC Role / Device Role / Timing Role: High-stability ADC providing feedback for PID controllers in noisy factory environments. Use Value: 80 dB PSRR and relaxed antialiasing (due to high oversampling ratio) reject 50/60 Hz line noise without external notch filters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit differential I²C ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS1115IDGSR | 16-bit, 860 sps, PGA (2/4/8/16×), no internal oscillator-requires external clock or MCU timing | Higher speed and programmable gain suit dynamic sensor ranges; lacks LTC2453's auto-sleep and zero-latency settling | Select ADS1115IDGSR when gain flexibility or >60 sps is required; avoid if lowest quiescent power or multiplexed zero-delay is critical |
| MCP3424-E/SL | 18-bit, 15 sps, no I²C interrupt pin, fixed 4.096V internal reference only-no external REF+/REF– support | Better resolution for static measurements; incompatible with custom reference schemes or bipolar input configurations | Select MCP3424-E/SL for ultra-high static accuracy where reference flexibility and speed are secondary |
Compared with ADS1115IDGSR and MCP3424-E/SL, the LTC2453IDDB#TRPBF uniquely combines guaranteed zero-latency multiplexing, integrated oscillator, and <0.2 µA sleep-making it optimal for space- and power-constrained distributed sensing nodes requiring deterministic timing and minimal external components.
Availability
LTC2453IDDB#TRPBF is available at Aetrix Electronics and suitable for system monitoring, environmental sensing, and industrial process control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2453IDDB#TRPBF 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. (including legacy Linear Technology products) designs high-performance analog, mixed-signal, and digital signal processing ICs for precision measurement, power management, and signal chain applications.
The LTC2453IDDB#TRPBF belongs to the ultra-low-power, high-accuracy delta-sigma ADC product line-engineered specifically for battery-operated and space-constrained instrumentation where calibration stability, I²C simplicity, and minimal external components are mandatory.
FAQ
What is the operating temperature range for the LTC2453IDDB#TRPBF?
The LTC2453IDDB#TRPBF is rated for –40°C to +85°C (I-grade), with guaranteed performance including offset error (±2 LSB), full-scale error (±4 LSB), and supply current (800 µA typ) across this full range. Its continuous internal calibration ensures accuracy stability without user firmware intervention throughout the specified temperature window.
Does the LTC2453IDDB#TRPBF require an external crystal or clock source?
No-the LTC2453IDDB#TRPBF integrates a precision oscillator that requires no external components. This eliminates crystal BOM cost, PCB footprint, and layout sensitivity while maintaining accurate 60 sps conversion timing. The oscillator is factory-trimmed and temperature-compensated, supporting reliable operation across –40°C to +85°C without recalibration.
How does the LTC2453IDDB#TRPBF handle input overvoltage or undervoltage conditions?
The LTC2453IDDB#TRPBF provides 31 LSB total overrange + underrange capability-typically allowing digitization of inputs up to ~8 LSB beyond VREF⁺ or below VREF⁻ before clamping. For example, with VREF⁺ = 5 V and VREF⁻ = 0 V, signals from –1.22 mV to +5.00122 V (≈ ±8 LSB) are accurately resolved, enabling robust fault tolerance in sensor interfaces without external clamping diodes.
What is the I²C address of the LTC2453IDDB#TRPBF and how is it configured?
The LTC2453IDDB#TRPBF has a fixed 7-bit I²C slave address of 0010100 (0x24), with no address pins or hardware configuration options. It responds only to read requests (R bit = 1) and issues ACK after address match. During conversion, it returns NAK-ensuring reliable synchronization without polling or timeout handling in host firmware.
Can the LTC2453IDDB#TRPBF operate with a 2.7V supply and still meet all specifications?
Yes-the LTC2453IDDB#TRPBF is fully specified from 2.7 V to 5.5 V. At VCC = 2.7 V, it maintains 60 sps conversion rate, <2 LSB offset error, <4 LSB full-scale error, and <0.2 µA sleep current across –40°C to +85°C. Its internal regulator and oscillator are designed for stable operation at minimum supply, making it ideal for single-cell Li-ion or 3V coin-cell systems.
LTC2453IDDB#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 60
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- I2C
- Configuration:
- ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- Sigma-Delta
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.7V ~ 5.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-DFN (3x2)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2453IDDB#TRPBF FAQ
1.How can I place an order for LTC2453IDDB#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2453IDDB#TRPBF 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 LTC2453IDDB#TRPBF reliable?
The price and inventory of LTC2453IDDB#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2453IDDB#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2453IDDB#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2453IDDB#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2453IDDB#TRPBF?
LTC2453IDDB#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2453IDDB#TRPBF 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 LTC2453IDDB#TRPBF?
For technical support, including LTC2453IDDB#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2453IDDB#TRPBF requirements.
6.How does Aetrix verify that LTC2453IDDB#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2453IDDB#TRPBF 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 LTC2453IDDB#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2453IDDB#TRPBF?
All LTC2453IDDB#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2453IDDB#TRPBF, 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 LTC2453IDDB#TRPBF part is unused and in its original packaging.
Return procedure for LTC2453IDDB#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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