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Analog Devices Inc. LTC1410CG#PBF
- Part No.:
- LTC1410CG#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
LTC1410CG#PBF.pdf
- Description:
- IC ADC 12BIT SAR 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,472
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Product details
Overview
LTC1410CG#PBF from Analog Devices (formerly Linear Technology) is a 12-bit, 1.25 Msps successive-approximation ADC with differential sample-and-hold, internal ±15 ppm/°C reference, and dual shutdown modes (Nap: 7 mW, Sleep: 10 µW). It delivers 71 dB S/(N + D) and 82 dB THD at 625 kHz Nyquist input, operates from ±5 V supplies, and targets high-speed data acquisition in telecom and DSP systems.
For engineers reviewing the LTC1410CG#PBF datasheet, LTC1410CG#PBF pinout, LTC1410CG#PBF application, or LTC1410CG#PBF equivalent, key selection criteria include its 20 MHz full-power bandwidth, ±1 LSB INL/DNL over temperature, no pipeline delay, true differential input architecture with 60 dB CMRR, and 28-pin SO Wide package compatibility.
Technical Context
The LTC1410CG#PBF implements a capacitor-based successive approximation register (SAR) architecture with integrated differential sample-and-hold and on-chip bandgap reference. Its analog front-end supports ±2.5 V bipolar input range and acquires signals within 100 ns, enabling 1.25 Msps throughput without pipeline latency.
Digital interface uses asynchronous µP-compatible control: active-low CONVST initiates conversion, BUSY indicates completion, and CS/RD enable three-state parallel output (D11–D0). Power management includes two distinct low-power states selected via NAP/SLP pin, with wake-up time of 200 ns from Sleep mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit with no missing codes - guarantees monotonic transfer function for precision measurement. |
| Sampling Rate | 1.25 Msps maximum - supports real-time capture of signals up to 625 kHz Nyquist frequency. |
| S/(N + D) | 71 dB at 600 kHz input - enables >11.5 effective bits for spectral analysis and imaging applications. |
| INL / DNL | ±1 LSB max over temperature - ensures accurate code transitions across full operating range (0°C to 70°C). |
| Input Bandwidth | 20 MHz full-power - allows undersampling of RF and IF signals beyond Nyquist without amplitude loss. |
| Power Modes | Nap (7 mW) and Sleep (10 µW) - reduces system power during idle intervals while preserving fast wake-up capability. |
| Reference | Internal 2.500 V ±15 ppm/°C - eliminates external reference component count and improves thermal stability. |
| Common Mode Rejection | 60 dB - suppresses ground-loop noise and enables clean differential sensing in noisy environments. |
Pinout & Package
Package: 28-lead plastic SO Wide (SW), 0.300-inch body width, RoHS-compliant, lead-free (Pb-free) finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +AIN (1) | Positive analog input | Differential input node; accepts ±2.5 V signal referenced to –AIN; requires matched trace routing for optimal CMRR. |
| –AIN (2) | Negative analog input | Complementary input node; enables true differential acquisition and common-mode noise rejection. |
| VREF (3) | Reference voltage output | 2.500 V ±15 ppm/°C buffered output; can be overdriven by external reference (2.25–2.75 V range). |
| REFCOMP (4) | Reference amplifier compensation | Bypass pin requiring 10 µF tantalum || 0.1 µF ceramic to AGND for stability and low-noise operation. |
| AGND (5) | Analog ground | Single-point star ground for analog section; must tie DGND and OGND here to minimize noise coupling. |
| D11–D4 (6–13) | Data outputs (MSB–bit 4) | Three-state parallel bus; driven only when CS = LOW and RD = LOW; compatible with 5 V TTL/CMOS logic. |
| DGND (14) | Digital logic ground | Ground return for internal control logic; must connect to AGND at single point to avoid digital noise injection. |
| D3–D0 (15–18) | Data outputs (bit 3–LSB) | Completes 12-bit parallel word; same timing and drive characteristics as D11–D4. |
| OGND (19) | Output driver ground | Separate ground for output buffer stage; ties to AGND to prevent switching noise from corrupting analog performance. |
| NAP/SLP (20) | Shutdown mode select | HIGH selects Nap mode (fast wake-up); LOW selects Sleep mode (ultra-low power); sets behavior of SHDN pin. |
| SHDN (21) | Shutdown enable | Active-low input; asserts selected shutdown state (Nap or Sleep) when pulled LOW; wake-up time is 200 ns from Sleep. |
| RD (22) | Read strobe | Enables output drivers when CS is LOW; data valid on rising edge of BUSY, sampled after RD assertion. |
| CONVST (23) | Conversion start | Falling-edge triggered; initiates SAR cycle; minimum pulse width 40 ns; must not reassert mid-conversion. |
| CS (24) | Chip select | Active-low enable for CONVST and RD recognition; required LOW for all control operations. |
| BUSY (25) | Conversion status | Active-low open-drain output; goes LOW at CONVST falling edge and HIGH at conversion completion; data valid on rising edge. |
| VSS (26) | Negative supply | –5 V supply rail; bypassed with 10 µF tantalum || 0.1 µF ceramic to AGND; absolute max –6 V. |
| DVDD (27) | Digital positive supply | +5 V supply for digital core; shorted internally to AVDD; bypassed identically to AVDD. |
| AVDD (28) | Analog positive supply | +5 V supply for analog section; bypassed with 10 µF tantalum || 0.1 µF ceramic to AGND; absolute max +6 V. |
Key Features
| Feature | Design Value |
|---|---|
| True differential input architecture | Enables rejection of common-mode noise up to 60 dB, eliminating ground loops in sensor and instrumentation interfaces. |
| No pipeline delay | Delivers first valid conversion result within 800 ns of CONVST edge - critical for real-time closed-loop control and trigger-based acquisition. |
| Integrated precision reference | 2.500 V ±15 ppm/°C internal reference reduces BOM count and improves thermal tracking vs. external references. |
| 20 MHz full-power analog bandwidth | Supports direct sampling of IF signals up to 20 MHz, enabling simplified receiver architectures without external antialiasing filters. |
| Three-state parallel output interface | Allows seamless connection to shared µP/DSP data buses without additional bus transceivers or isolation logic. |
| Two-tier power shutdown | Enables dynamic power scaling: Nap mode (7 mW) for brief idle periods; Sleep mode (10 µW) for extended standby with 200 ns wake-up. |
Applications
| Telecommunications Baseband Processing | Digital Signal Processing Systems |
|---|---|
Use Scenario: Digitizing I/Q baseband signals in cellular infrastructure receivers operating at intermediate frequencies up to 20 MHz. IC Role / Device Role / Timing Role: High-speed, low-distortion ADC capturing complex modulation waveforms with minimal quantization error and harmonic corruption. Use Value: 71 dB S/(N + D) and 82 dB THD preserve EVM and ACLR performance in LTE/5G baseband chains without oversampling. | Use Scenario: Real-time acquisition of sensor data streams in FPGA-based DSP accelerators for vibration analysis or audio beamforming. IC Role / Device Role / Timing Role: Memory-mapped peripheral providing deterministic 1.25 Msps sampling synchronized to processor read cycles via BUSY and RD handshake. Use Value: No pipeline delay and µP-compatible interface eliminate FIFO buffering, reducing latency and system complexity. |
| Multiplexed Data Acquisition Systems | High-Speed Imaging Front Ends |
Use Scenario: Channelized acquisition in industrial PLC modules where multiple analog inputs are sequentially sampled at ≥1 Msps per channel. IC Role / Device Role / Timing Role: Precision SAR ADC with ±1 LSB linearity and fast 100 ns acquisition enabling accurate multi-channel settling even with high source impedance. Use Value: Differential input and 60 dB CMRR reject crosstalk between adjacent channels in dense PCB layouts. | Use Scenario: Pixel-level digitization in scientific CCD/CMOS camera systems requiring low-noise, high-linearity conversion of low-light analog video signals. IC Role / Device Role / Timing Role: Bipolar-input ADC accepting ±2.5 V swing from correlated double sampling circuits with minimal offset drift over temperature. Use Value: ±1 LSB INL/DNL and internal reference ensure consistent pixel response across frame, improving dynamic range and SNR. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7892BRZ-1 | 12-bit, 1.25 Msps, but uses single-ended input only; no internal reference; requires external REF and driver. | Less suitable for differential sensor interfaces or space-constrained designs due to added external components. | Select when legacy single-ended design exists and board area permits external reference/buffer. |
| ADS8326IPW | 16-bit, 1 Msps, SPI interface only; no parallel bus; higher resolution but lower speed and different control protocol. | Not drop-in replaceable - requires firmware rewrite and layout changes for serial interface and decoupling. | Select when resolution >12-bit is mandatory and system can accommodate SPI timing constraints and reduced throughput. |
Compared with AD7892BRZ-1 and ADS8326IPW, the LTC1410CG#PBF uniquely combines 12-bit/1.25 Msps performance, differential inputs, internal reference, and parallel µP interface in a single 28-pin SO package - simplifying design, reducing component count, and preserving real-time determinism.
Availability
LTC1410CG#PBF is available at Aetrix Electronics and suitable for telecommunications baseband processing, digital signal processing systems, and multiplexed data acquisition systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for LTC1410CG#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 LTC1410CG#PBF belongs to ADI's legacy Linear Technology precision data converter family, engineered for high-speed, low-distortion sampling in demanding instrumentation, telecom, and test equipment applications.
FAQ
What is the operating temperature range for the LTC1410CG#PBF?
The LTC1410CG#PBF is specified for commercial-grade operation from 0°C to 70°C. This is indicated by the "C" suffix in the part number and confirmed in the Absolute Maximum Ratings table. The device maintains ±1 LSB INL and DNL across this full range, and all AC specifications-including 71 dB S/(N + D) at 600 kHz-are guaranteed over temperature. Thermal performance is stabilized by the internal ±15 ppm/°C reference.
Does the LTC1410CG#PBF require an external clock source?
No, the LTC1410CG#PBF does not require an external clock. It contains a fully integrated, factory-trimmed internal clock that delivers a guaranteed maximum conversion time of 750 ns and supports the full 1.25 Msps sampling rate without synchronization overhead. This eliminates timing jitter from external clock distribution and simplifies system design-especially in µP- or DSP-coupled configurations where clock domain alignment would otherwise be critical.
How does the differential input architecture of the LTC1410CG#PBF improve noise immunity?
The LTC1410CG#PBF achieves 60 dB common-mode rejection ratio (CMRR) through its true differential input sample-and-hold circuit. This allows it to reject noise-such as ground loops, power supply ripple, or EMI-that appears equally on both +AIN and –AIN pins. In practice, this means users can route sensor signals differentially from source to ADC, significantly reducing susceptibility to ambient interference without requiring separate instrumentation amplifiers or complex filtering.
Can the LTC1410CG#PBF operate with an external reference, and what is the acceptable voltage range?
Yes, the LTC1410CG#PBF supports external reference operation via the VREF pin. The device accepts external references in the range of 2.25 V to 2.75 V while maintaining specified linearity. When using an external reference-such as the LT1019A-2.5-the internal reference is disabled, and REFCOMP must still be bypassed with 10 µF tantalum || 0.1 µF ceramic. This flexibility enables custom full-scale adjustment or improved reference stability in metrology-grade applications.
What are the key timing requirements for interfacing the LTC1410CG#PBF with a microprocessor?
Key timing requirements include: CONVST pulse width ≥40 ns; CS must be LOW before CONVST falling edge; BUSY rising edge indicates data validity; RD must be asserted after BUSY rises, with t10 (data access time) ≤25 ns (CL = 25 pF); and bus relinquish time ≤20 ns. These parameters ensure reliable handshaking without pipeline stalls. The absence of pipeline delay means the first conversion result is available within 800 ns of CONVST, enabling tight real-time loop control.
LTC1410CG#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 1.25M
- Number of Inputs:
- 1
- Input Type:
- Differential, Single Ended
- Data Interface:
- Parallel
- 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:
- ±5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 28-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC1410CG#PBF FAQ
1.How can I place an order for LTC1410CG#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1410CG#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 LTC1410CG#PBF reliable?
The price and inventory of LTC1410CG#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1410CG#PBF is usually 5 days.
3.What payment methods are accepted for LTC1410CG#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1410CG#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1410CG#PBF?
LTC1410CG#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1410CG#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 LTC1410CG#PBF?
For technical support, including LTC1410CG#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1410CG#PBF requirements.
6.How does Aetrix verify that LTC1410CG#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1410CG#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 LTC1410CG#PBF meets industry standards.
7.What is the process for return or replacement of LTC1410CG#PBF?
All LTC1410CG#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1410CG#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 LTC1410CG#PBF part is unused and in its original packaging.
Return procedure for LTC1410CG#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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