My Inquiry
My Account
Analog Devices Inc. LTC1412CG#TRPBF
- Part No.:
- LTC1412CG#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
LTC1412CG#TRPBF.pdf
- Description:
- IC ADC 12BIT SAR 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,641
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC1412CG#TRPBF from Analog Devices (formerly Linear Technology) is a 12-bit, 3 Msps sampling analog-to-digital converter with differential input architecture, ±2.5 V bipolar input range, 72 dB S/(N + D) at 1.5 MHz, and no pipeline delay. It integrates a precision 2.5 V reference and high-speed sample-and-hold optimized for low-noise signal acquisition in telecommunications and spectrum analysis systems.
For engineers reviewing the LTC1412CG#TRPBF datasheet, LTC1412CG#TRPBF pinout, LTC1412CG#TRPBF application, or LTC1412CG#TRPBF equivalent, key selection considerations include its 40 MHz full-power bandwidth, ±0.35 LSB INL (typ), 28-pin SSOP package, true differential input CMRR of 63 dB, and support for both internal and external reference operation.
Technical Context
The LTC1412CG#TRPBF employs a successive approximation register (SAR) architecture with an integrated differential capacitive DAC and zeroing-switch sample-and-hold. Its analog front-end supports simultaneous acquisition on AIN+ and AIN– with 20 ns minimum acquisition time and 1 ps RMS aperture jitter.
Digital interface features include asynchronous CONVST-triggered conversion, BUSY status flag, three-state parallel 12-bit output (D11–D0), and independent OVDD supply enabling direct interfacing to 3 V or 5 V logic. Internal timing is self-contained-no external clock required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit, guaranteed no missing codes-ensures monotonic transfer function for precision measurement. |
| Sampling Rate | 3 Msps maximum-supports real-time digitization of signals up to 1.5 MHz Nyquist frequency. |
| S/(N + D) | 72 dB at 100 kHz, 70 dB at 1.465 MHz-defines usable dynamic range for spectral analysis applications. |
| INL / DNL | ±0.35 LSB / ±0.25 LSB (typ)-enables accurate DC and low-frequency measurements without calibration. |
| Input Range | ±2.5 V differential or single-ended-matches optimal operating range of low-noise op amps, eliminating level-shifting circuitry. |
| Power Dissipation | 150 mW at ±5 V supplies-enables high-speed conversion in thermally constrained embedded systems. |
| Full-Power Bandwidth | 40 MHz-allows undersampling of RF and IF signals far above Nyquist without amplitude loss. |
Pinout & Package
Package: 28-lead plastic SSOP (G package), 0.300-inch body width, JEDEC MO-153 compliant, RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+ (1) | Positive analog input | Differential or single-ended signal input; referenced to AIN–; ±2.5 V range when AIN– grounded. |
| AIN– (2) | Negative analog input | Common-mode reference for differential acquisition; enables ground-loop rejection and noise cancellation. |
| VREF (3) | 2.5 V reference output | Factory-trimmed bandgap reference; buffered via internal amplifier; can be overdriven by external source. |
| REFCOMP (4) | Reference amplifier compensation | Requires 10 µF ceramic bypass to AGND; stabilizes internal reference amplifier loop. |
| AGND (5) | Analog ground | Star-ground connection point for all analog supplies and bypass caps; must be isolated from DGND. |
| D11–D0 (6–13, 15–18) | 12-bit parallel data outputs | Three-state, MSB-first outputs; driven by OVDD-supplied buffers-supports 3 V or 5 V logic levels. |
| CONVST (23) | Conversion start trigger | Active-low edge-sensitive input; initiates SAR cycle; requires ≥20 ns low pulse width. |
| CS (24) | Chip select | Enables CONVST recognition; must be low during conversion initiation; controls output driver enable. |
| BUSY (25) | Conversion status indicator | Active-low open-drain output; asserts during acquisition + conversion (≤333 ns total throughput). |
| VSS (26) | Negative analog supply | –5 V supply rail; requires local 10 µF ceramic bypass to AGND; clamped to –6 V absolute max. |
| AVDD / DVDD / OVDD (28, 20, 21) | Supply rails | AVDD/DVDD = +5 V analog/digital core; OVDD = +3 V or +5 V output driver supply; each requires dedicated bypass. |
Key Features
| Feature | Design Value |
|---|---|
| Differential input sample-and-hold | 40 MHz full-power bandwidth with 63 dB CMRR-rejects common-mode noise up to 1 MHz without external instrumentation amps. |
| No pipeline delay | Immediate data availability after BUSY deassertion-simplifies real-time control loops and FIFO-based buffering. |
| Internal 2.5 V reference | ±15 ppm/°C tempco, 2.480–2.520 V output-eliminates need for external reference in cost-sensitive designs. |
| Flexible digital interface | OVDD-supplied output drivers-enable direct connection to mixed-voltage systems (e.g., 5 V ADC core + 3 V FPGA I/O). |
| Low acquisition time | 20 ns typical-reduces dead time between conversions, maximizing effective sampling efficiency at 3 Msps. |
Applications
| Telecommunications Baseband | Digital Signal Processing |
|---|---|
Use Scenario: Digitizing I/Q channels in LTE/WiMAX baseband receivers with 1.92 MHz bandwidth. IC Role / Device Role / Timing Role: High-fidelity 12-bit sampling ADC capturing complex baseband waveforms at 3 Msps with minimal harmonic distortion. Use Value: 82 dB SFDR at 1.465 MHz enables clean separation of adjacent channel interference in multi-carrier systems. |
Use Scenario: Real-time FFT processing of vibration sensor data in predictive maintenance edge nodes. IC Role / Device Role / Timing Role: Low-latency analog front-end feeding DSP with synchronized 12-bit samples at 3 Msps. Use Value: No pipeline delay ensures deterministic timing alignment between sample capture and algorithm execution. |
| Multiplexed Data Acquisition | Spectrum Analysis Instrumentation |
Use Scenario: 16-channel industrial DAQ system using analog multiplexing before LTC1412CG#TRPBF input. IC Role / Device Role / Timing Role: High-throughput ADC shared across multiple sensors via fast-settling op amp buffer and analog switch. Use Value: ±2.5 V input range matches standard op amp output swing, avoiding gain stages and associated noise. |
Use Scenario: Portable RF spectrum analyzer front-end digitizing downconverted IF signals at 70 MHz center. IC Role / Device Role / Timing Role: Undersampling ADC acquiring wideband IF signals with 40 MHz full-power bandwidth. Use Value: 72 dB S/(N + D) at 100 kHz and flat ENOB response up to 1 MHz support accurate amplitude and phase measurement. |
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 |
|---|---|---|---|
| AD9220ARZ | 12-bit, 10 Msps, 74 dB S/(N + D) at 100 kHz; requires external reference; 48-lead LQFP package. | Higher speed but larger footprint and higher power (350 mW); lacks integrated reference and differential input optimization. | Select AD9220ARZ only when >3 Msps throughput is mandatory and board space allows larger package. |
| MAX1186ETI+ | 12-bit, 3 Msps, 71 dB S/(N + D); internal reference; 28-pin TSSOP; no differential input-single-ended only. | Lower CMRR (50 dB) and no true differential acquisition; suitable only for ground-referenced signals with low common-mode noise. | Choose MAX1186ETI+ for cost-sensitive, single-ended applications where differential noise rejection is not required. |
Compared with AD9220ARZ and MAX1186ETI+, the LTC1412CG#TRPBF uniquely combines integrated 2.5 V reference, true differential input with 63 dB CMRR, and 28-pin SSOP packaging-making it optimal for compact, low-noise, mixed-signal systems requiring ±2.5 V signal compatibility.
Availability
LTC1412CG#TRPBF is available at Aetrix Electronics and suitable for telecommunications infrastructure, digital signal processing modules, and portable spectrum analyzers requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LTC1412CG#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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC1412CG#TRPBF belongs to ADI's legacy Linear Technology high-speed precision ADC product line, designed specifically for demanding data acquisition and instrumentation applications requiring excellent AC performance and ease of analog interface.
FAQ
What is the operating temperature range for the LTC1412CG#TRPBF?
The LTC1412CG#TRPBF is specified for commercial-grade operation from 0°C to 70°C (TJ). This is indicated by the "C" suffix in the part number. The "I" variant (LTC1412IG#TRPBF) extends to –40°C to 85°C. Thermal derating applies above 70°C ambient per θJA = 95°C/W.
Does the LTC1412CG#TRPBF require an external clock to operate?
No, the LTC1412CG#TRPBF does not require an external clock. It contains an internal oscillator and timing logic controlled solely by the CONVST signal. Conversion is initiated on the falling edge of CONVST, and BUSY indicates completion-enabling simple microcontroller or FPGA interface without clock synchronization overhead.
Can the LTC1412CG#TRPBF accept single-ended input signals?
Yes, the LTC1412CG#TRPBF supports single-ended operation: tie AIN– to AGND and drive AIN+ with a ±2.5 V signal. Linearity specifications (INL/DNL) and AC performance (S/(N + D)) apply under this configuration per Note 6 in the datasheet. Differential mode remains preferred for noise immunity.
What is the purpose of the OVDD pin on the LTC1412CG#TRPBF?
The OVDD pin powers the 12-bit parallel output drivers independently of the core DVDD supply. It allows direct interfacing to 3 V logic (e.g., FPGA I/O banks) while maintaining +5 V operation of the ADC core. When driving 5 V logic, OVDD is tied to DVDD/AVDD; for 3 V logic, OVDD is supplied with a regulated 3 V source.
How is the internal reference of the LTC1412CG#TRPBF calibrated and trimmed?
The LTC1412CG#TRPBF incorporates a factory-laser-trimmed, curvature-corrected bandgap reference delivering 2.500 V ±20 mV (2.480–2.520 V) at VREF. Trim occurs during wafer sort; no user calibration is needed. Reference stability is maintained at ±15 ppm/°C, and REFCOMP requires 10 µF ceramic bypass to AGND for loop stability.
LTC1412CG#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 3M
- 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:
- -
LTC1412CG#TRPBF FAQ
1.How can I place an order for LTC1412CG#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1412CG#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 LTC1412CG#TRPBF reliable?
The price and inventory of LTC1412CG#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1412CG#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC1412CG#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1412CG#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1412CG#TRPBF?
LTC1412CG#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1412CG#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 LTC1412CG#TRPBF?
For technical support, including LTC1412CG#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1412CG#TRPBF requirements.
6.How does Aetrix verify that LTC1412CG#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC1412CG#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 LTC1412CG#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC1412CG#TRPBF?
All LTC1412CG#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1412CG#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 LTC1412CG#TRPBF part is unused and in its original packaging.
Return procedure for LTC1412CG#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC1412CG#TRPBF Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
