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Analog Devices Inc. LTC1403AIMSE-1#TRPBF
- Part No.:
- LTC1403AIMSE-1#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC1403AIMSE-1#TRPBF.pdf
- Description:
- IC ADC 14BIT SAR 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,068
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Product details
Overview
LTC1403AIMSE-1#TRPBF from Analog Devices (formerly Linear Technology) is a 14-bit, 2.8 Msps serial analog-to-digital converter with differential inputs, 3V single-supply operation, ±1.25V bipolar input range, and integrated 2.5V bandgap reference. It delivers 73.5 dB SINAD at 100 kHz and supports high-speed data acquisition in portable instrumentation and motor control systems.
For engineers reviewing the LTC1403AIMSE-1#TRPBF datasheet, LTC1403AIMSE-1#TRPBF pinout, LTC1403AIMSE-1#TRPBF application, or LTC1403AIMSE-1#TRPBF equivalent, key selection criteria include its 2.8 Msps sampling rate, 14-bit resolution with no missing codes, 80 dB common-mode rejection, low-power Nap (3 mW) and Sleep (10 µW) modes, and 10-lead MSE package compatibility with space-constrained PCB layouts.
Technical Context
The LTC1403AIMSE-1#TRPBF employs a fully differential sample-and-hold architecture with aperture jitter of 0.3 ps and acquisition time of 39 ns, enabling accurate high-frequency signal capture. Its internal timing logic synchronizes conversion start (CONV↑) with a 16-cycle serial output window aligned to SCK rising edges.
It uses a 2.5V internal reference (±15 ppm/°C tempco) that can be overdriven by an external 2.55V–VDD reference; differential input common-mode range spans 0 V to VDD while maintaining ±1.25V differential swing. Output data is 2's complement, three-state serial format compatible with standard SPI-like interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit with no missing codes - guarantees monotonic transfer function for precision measurement applications. |
| Sampling Rate | 2.8 Msps - enables real-time capture of signals up to 1.4 MHz (Nyquist-limited) without undersampling. |
| SINAD | 73.5 dB at 100 kHz - corresponds to ~12.2 ENOB, suitable for medium-fidelity sensor and control loop digitization. |
| Common-Mode Rejection | 80 dB at 1 MHz - suppresses ground-loop noise and EMI in industrial environments with shared return paths. |
| Power Dissipation | 14 mW active, 3 mW Nap, 10 µW Sleep - allows battery-powered operation with rapid wake-up (<2 ms VREF settling). |
| Differential Input Range | ±1.25 V - supports AC-coupled signals in single-supply systems without external mid-rail bias generation. |
| Supply Voltage | 2.7 V to 3.6 V - compatible with standard 3V LDOs and Li-ion battery discharge profiles. |
Pinout & Package
Package: 10-lead plastic MSOP (MSE), exposed pad (Pin 11) must be soldered to PCB ground plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+ (1) | Noninverting analog input | Differential input node; accepts 0 V to VDD common-mode voltage with ±1.25 V swing relative to AIN–. |
| AIN– (2) | Inverting analog input | Paired differential input; full common-mode rejection requires matched trace routing and impedance. |
| VREF (3) | Reference buffer output | 2.5 V internal reference; bypassed with 10 µF ceramic + 0.1 µF ceramic to GND for low-noise operation. |
| GND (4,5,6) | Analog/digital ground | Multiple dedicated ground pins minimize ground bounce; all must connect directly to solid analog ground plane. |
| VDD (7) | Positive supply | Single 3V supply powers entire IC; requires local 10 µF + 0.1 µF bypassing near Pins 6–7. |
| SDO (8) | Three-state serial data output | 2's complement 14-bit word representing previous conversion result; high-impedance when SCK inactive. |
| SCK (9) | Serial clock input | TTL/3V CMOS-compatible; rising edge clocks out data and advances conversion state machine. |
| CONV (10) | Convert start input | Rising-edge-triggered; initiates sample-and-hold hold mode and starts conversion sequence. |
| Exposed Pad (11) | Thermal & electrical ground | Must be soldered to PCB ground plane; critical for thermal dissipation and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Differential input architecture | Enables true ground-referenced measurement without level-shifting circuitry, reducing component count and layout complexity. |
| 80 dB CMRR at 1 MHz | Eliminates need for separate instrumentation amplifiers in noisy industrial signal chains, lowering system BOM cost. |
| 39 ns acquisition time | Supports full 2.8 Msps throughput with minimal inter-conversion dead time, maximizing channel utilization in multiplexed systems. |
| Overdrivable 2.5 V reference | Allows use of higher-accuracy external references (e.g., 2.55 V) to extend effective input range or improve DC accuracy. |
| Nap/Sleep shutdown modes | Reduces power to 3 mW or 10 µW during idle periods-critical for energy harvesting and battery-operated edge sensors. |
Applications
| Communications Baseband Digitization | Data Acquisition Systems |
|---|---|
|
Use Scenario: Digitizing IF signals in software-defined radio front-ends with limited board space and thermal budget. IC Role / Device Role / Timing Role: High-speed ADC capturing baseband I/Q channels at 2.8 Msps with differential input rejecting RF coupling noise. Use Value: 73.5 dB SINAD and 80 dB CMRR enable clean digitization without external filtering or shielding, reducing bill-of-materials. |
Use Scenario: Modular DAQ modules for lab equipment requiring 14-bit resolution and multi-channel synchronization. IC Role / Device Role / Timing Role: Standalone ADC with 3-wire serial interface for FPGA-controlled sampling; CONV and SCK provide precise timing control. Use Value: 10-lead MSE package allows dense channel packing; Nap mode enables low-latency wake-on-trigger operation. |
| Uninterruptible Power Supplies | Multiphase Motor Control |
|
Use Scenario: Real-time monitoring of AC line voltage and current waveforms during grid anomaly detection. IC Role / Device Role / Timing Role: Differential ADC measuring isolated shunt or transformer outputs with high common-mode transient immunity. Use Value: ±1.25 V input range matches typical isolation amplifier outputs; 80 dB CMRR rejects switching noise from adjacent power stages. |
Use Scenario: Current sensing across multiple motor phases in compact BLDC inverters with tight thermal constraints. IC Role / Device Role / Timing Role: Simultaneous sampling of phase currents via multiplexed differential inputs synchronized to PWM cycles. Use Value: 39 ns acquisition time ensures accurate current capture at high PWM frequencies; low 14 mW dissipation avoids heatsink requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-power ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8326IDRCT | 16-bit, 1 Msps, SPI interface, 2.7–5.5 V supply, no internal reference | Higher resolution but lower speed; requires external reference and level-shifting for 3V systems | Choose for DC-precision applications where 2.8 Msps is unnecessary and 16-bit linearity is mandatory. |
| MAX1190ECM+T | 14-bit, 2.5 Msps, parallel/serial interface, 2.7–3.6 V, internal 2.048 V reference | Slightly lower sampling rate; 2.048 V reference yields ±1.024 V input range vs. ±1.25 V | Choose when footprint compatibility with MAX1190 is required and 0.3 Msps speed margin is acceptable. |
Compared with ADS8326IDRCT and MAX1190ECM+T, the LTC1403AIMSE-1#TRPBF offers the highest sampling rate in a 10-lead MSE package with built-in 2.5 V reference and superior CMRR-making it optimal for space-constrained, noise-immune, medium-resolution real-time acquisition.
Availability
LTC1403AIMSE-1#TRPBF is available at Aetrix Electronics and suitable for communications baseband digitization, uninterruptible power supplies, and multiphase motor control requiring stable component supply across extended temperature ranges (–40°C to +85°C).
Supply support for LTC1403AIMSE-1#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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LTC1403AIMSE-1#TRPBF belongs to Linear's legacy high-speed precision ADC family, designed specifically for portable, low-power, and noise-sensitive data acquisition in industrial and instrumentation applications.
FAQ
What is the operating temperature range for the LTC1403AIMSE-1#TRPBF?
The LTC1403AIMSE-1#TRPBF is rated for –40°C to +85°C ambient operation, matching the "I" grade specification per the official Linear Technology (now Analog Devices) ordering table. This extended range supports deployment in industrial motor drives, outdoor telecom equipment, and automotive under-hood monitoring systems where thermal stability is critical. The device maintains full 14-bit performance and timing specifications across this range.
Does the LTC1403AIMSE-1#TRPBF require an external reference, or does it have an internal one?
The LTC1403AIMSE-1#TRPBF includes a factory-trimmed, temperature-compensated 2.5 V internal bandgap reference (VREF pin), eliminating the need for external reference components in most applications. It can be overdriven by an external reference between 2.55 V and VDD for improved accuracy or extended input range. The internal reference exhibits ±15 ppm/°C tempco and settles in 2 ms after Sleep mode wake-up.
How does the differential input architecture of the LTC1403AIMSE-1#TRPBF improve noise immunity?
The LTC1403AIMSE-1#TRPBF achieves 80 dB common-mode rejection at 1 MHz by sampling AIN+ and AIN– simultaneously with matched internal circuitry. This rejects noise coupled equally onto both traces-such as ground bounce, EMI, or switching transients-without requiring external instrumentation amplifiers. Its differential architecture also permits direct AC-coupling in single-supply systems, simplifying front-end design.
What are the power consumption modes of the LTC1403AIMSE-1#TRPBF, and how are they activated?
The LTC1403AIMSE-1#TRPBF supports three power states: Active (14 mW), Nap (3 mW), and Sleep (10 µW). Nap mode is entered with two CONV pulses while SCK is held static; Sleep mode requires four or more such pulses. Both modes retain register state and allow sub-2-ms wake-up. These low-power states are essential for battery-powered DAQ nodes and energy-efficient industrial sensors using the LTC1403AIMSE-1#TRPBF.
Is the LTC1403AIMSE-1#TRPBF pin-compatible with the LTC1403-1 series or other variants?
Yes-the LTC1403AIMSE-1#TRPBF shares identical pinout, package (10-lead MSE), and functional interface with all members of the LTC1403-1/LTC1403A-1 family, including LTC1403CMSE-1#TRPBF and LTC1403IMSE-1#TRPBF. Differences are limited to resolution (14-bit vs. 12-bit), INL/DNL specs, and temperature grade. No PCB redesign is needed when upgrading from C-grade or downgrading from A-grade variants.
LTC1403AIMSE-1#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 2.8M
- Number of Inputs:
- 1
- Input Type:
- Differential, Single Ended
- Data Interface:
- SPI
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 2.7V ~ 3.6V
- Voltage - Supply, Digital:
- 2.7V ~ 3.6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 10-MSOP-EP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC1403AIMSE-1#TRPBF FAQ
1.How can I place an order for LTC1403AIMSE-1#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1403AIMSE-1#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 LTC1403AIMSE-1#TRPBF reliable?
The price and inventory of LTC1403AIMSE-1#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1403AIMSE-1#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC1403AIMSE-1#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1403AIMSE-1#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1403AIMSE-1#TRPBF?
LTC1403AIMSE-1#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1403AIMSE-1#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 LTC1403AIMSE-1#TRPBF?
For technical support, including LTC1403AIMSE-1#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1403AIMSE-1#TRPBF requirements.
6.How does Aetrix verify that LTC1403AIMSE-1#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC1403AIMSE-1#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 LTC1403AIMSE-1#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC1403AIMSE-1#TRPBF?
All LTC1403AIMSE-1#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1403AIMSE-1#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 LTC1403AIMSE-1#TRPBF part is unused and in its original packaging.
Return procedure for LTC1403AIMSE-1#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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