Analog Devices Inc. LTC1411CG#TRPBF
- Part No.:
- LTC1411CG#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 36-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
LTC1411CG#TRPBF.pdf
- Description:
- IC ADC 14BIT SAR 36SSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
LTC1411CG#TRPBF from Analog Devices (formerly Linear Technology) is a 14-bit, 2.5 Msps successive-approximation ADC with integrated sample-and-hold, precision 2.5V bandgap reference, and programmable ±1.8V/±1.27V/±0.9V/±0.64V input ranges. It operates from a single 5V supply, dissipates 195 mW typical, and delivers 80 dB S/(N+D) at 100 kHz - enabling high-fidelity data acquisition in telecom and DSP systems.
For engineers reviewing the LTC1411CG#TRPBF datasheet, LTC1411CG#TRPBF pinout, LTC1411CG#TRPBF application, or LTC1411CG#TRPBF equivalent, key selection criteria include its no-pipeline-delay architecture, true differential input rejection, out-of-range (OTR) flag with MSB correlation, and dual low-power shutdown modes (Nap: 2 mA; Sleep: <1 µA).
Technical Context
The LTC1411CG#TRPBF implements a 14-bit SAR architecture with internal clock trimmed to guarantee 2.5 Msps sampling. Its differential input stage supports common-mode rejection up to 62 dB and accepts bipolar signals referenced to AIN–, with acquisition time of 100 ns and aperture jitter of 1 psRMS.
Conversion control uses a single active-low CONVST signal; BUSY goes low during conversion and data becomes valid 7 ns after BUSY rises. The device supports both internal (REFOUT = 2.5 V) and external reference configurations, with REFCOM2 voltage (4.05 V nominal) scaled by PGA0/PGA1 to set input span and gain.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit with no missing codes over full temperature range - ensures monotonicity and guaranteed code transitions in closed-loop control. |
| Sampling Rate | 2.5 Msps maximum - supports Nyquist-limited baseband capture up to 1.25 MHz without pipeline latency. |
| S/(N + D) | 80 dB at 100 kHz input - enables ≥12.7 effective bits for high-SNR signal chain design in spectrum analysis. |
| THD | –90 dB at 100 kHz - minimizes harmonic contamination in imaging and communications digitization. |
| INL | ±2 LSB max - preserves linearity for precision instrumentation and calibration-critical applications. |
| Power Dissipation | 195 mW typical at 5 V - balances speed and thermal load in space-constrained embedded systems. |
| Shutdown Current | 1 µA in Sleep mode - extends battery life in portable data loggers and intermittent-sampling instruments. |
Pinout & Package
Package: 36-pin plastic SSOP (G package), 0.025" pitch, JEDEC MO-153 compliant. Thermal resistance θJA = 95°C/W; max junction temperature = 125°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+, AIN– | Differential analog inputs | Accept true differential or single-ended signals; common-mode range = 0 V to VDD; enable noise-rejecting measurement of small signals superimposed on large DC offsets. |
| REFOUT | 2.5 V internal reference output | Factory-trimmed bandgap source; requires 22 µF tantalum bypass if used to bias AIN–; sets bipolar zero point for 2's complement output coding. |
| PGA0, PGA1 | Input range select logic inputs | Configure four spans: ±1.8 V (0 dB), ±1.27 V (–3 dB), ±0.9 V (–6 dB), ±0.64 V (–9 dB); control REFCOM2 voltage via internal scaling network. |
| CONVST | Active-low conversion start | Falling edge initiates SAR cycle; minimum pulse width = 20 ns; no restart capability mid-conversion. |
| BUSY | Conversion status indicator | Active-low open-drain output; low during conversion; data valid 7 ns after BUSY rising edge. |
| OTR | Out-of-range flag | High when input exceeds selected span; combined with D13 (MSB), distinguishes overrange (D13=0, OTR=1) from underrange (D13=1, OTR=1). |
| D13–D0 | Parallel 14-bit 2's complement data outputs | D13 = MSB; outputs are CMOS-compatible with VDD-referenced VOH/VOL; support direct connection to FIFOs, DSPs, or microprocessor data buses. |
| SLP, NAP | Power-down control inputs | SLP = 0 V → Sleep mode (<1 µA); NAP = 0 V → Nap mode (2 mA); internal pull-downs simplify interface; wake-up times: 210 ms (Sleep), 250 ns (Nap). |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | Successive-approximation architecture delivers deterministic latency (tCONV = 250–350 ns), enabling real-time feedback in servo control loops without timing uncertainty. |
| Programmable input ranges | Four spans selectable via two digital pins - eliminates external gain-switching circuitry and simplifies multi-range sensor interfacing in automated test equipment. |
| True differential input | 62 dB common-mode rejection ratio - suppresses noise coupled into sensor cables or PCB traces, critical for industrial fieldbus and motor current sensing. |
| Out-of-range detection | Hardware-level OTR flag synchronized with MSB - enables immediate fault response (e.g., clamp, alarm, or reconfiguration) without software polling overhead. |
| Internal reference with tempco | ±15 ppm/°C drift over temperature - meets stability requirements for portable calibrators and battery-powered instrumentation without external reference ICs. |
Applications
| Telecommunications Baseband Digitization | Digital Signal Processing Front-End |
|---|---|
|
Use Scenario: Digitizing IF signals from quadrature demodulators in cellular BTS receivers before FPGA-based channelization. IC Role / Device Role / Timing Role: High-speed, low-distortion ADC capturing complex baseband I/Q pairs at 2.5 Msps with precise amplitude matching. Use Value: 90 dB THD prevents intermodulation artifacts in adjacent channels; ±2 LSB INL maintains EVM compliance across temperature. |
Use Scenario: Acquiring sensor data (vibration, temperature, strain) in real-time for adaptive filtering and spectral analysis on embedded DSPs. IC Role / Device Role / Timing Role: Precision analog front-end providing 14-bit resolution and 80 dB SINAD to feed FFT engines with minimal quantization noise floor elevation. Use Value: No pipeline delay allows deterministic sample-to-computation timing; Sleep mode reduces average power in duty-cycled monitoring systems. |
| Multiplexed Data Acquisition Systems | Imaging System Digitization |
|
Use Scenario: Scanning multiple thermocouple or RTD channels via analog multiplexer, with per-channel gain/range optimization. IC Role / Device Role / Timing Role: ADC with programmable input spans (±1.8 V to ±0.64 V) and fast wake-up (250 ns from Nap) enabling per-channel dynamic range adaptation. Use Value: PGA0/PGA1 control eliminates need for external programmable-gain amplifiers; 100 ns acquisition time supports >10 kSps per channel in 16-channel systems. |
Use Scenario: Converting analog video outputs from CCD or CMOS line-scan sensors in industrial inspection cameras. IC Role / Device Role / Timing Role: High-linearity ADC capturing pixel intensity with minimal differential nonlinearity-induced shading artifacts. Use Value: ±2 LSB INL and 0.66 LSBRMS transition noise preserve grayscale fidelity; 36-pin SSOP footprint fits compact optical module PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed 14-bit ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8588SIRTVR | 8-channel simultaneous-sampling, 1 MSPS/channel, SPI interface, external reference only | Targets multi-channel synchronized acquisition (e.g., motor phase current monitoring); lacks OTR flag and internal reference | Choose for channel density and isolation; avoid if single-channel speed >2 Msps or internal reference required. |
| MAX1190ECM+ | 14-bit, 2.5 Msps, internal reference, but only ±1.024 V fixed range and no programmable PGA | Suited for unipolar sensor interfaces with stable full-scale; no support for bipolar or multi-span operation | Choose for cost-sensitive, fixed-range designs; avoid when input signal swing varies across measurements. |
Compared with ADS8588SIRTVR and MAX1190ECM+, the LTC1411CG#TRPBF uniquely combines single-channel 2.5 Msps throughput, four programmable input spans, integrated 2.5 V reference, and hardware OTR detection - making it optimal for adaptive, high-fidelity digitization where flexibility and deterministic timing outweigh channel count.
Availability
LTC1411CG#TRPBF is available at Aetrix Electronics and suitable for telecommunications infrastructure, digital signal processing front-ends, and high-speed data acquisition systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LTC1411CG#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 technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC1411CG#TRPBF belongs to ADI's legacy Linear Technology precision data converter family, designed specifically for high-speed, low-distortion digitization in demanding instrumentation, telecom, and DSP applications where accuracy, speed, and power efficiency are co-optimized.
FAQ
What is the operating temperature range for the LTC1411CG#TRPBF?
The LTC1411CG#TRPBF is specified for the commercial temperature range of 0°C to 70°C. All key AC and DC specifications - including ±2 LSB INL, 80 dB S/(N+D) at 100 kHz, and 195 mW typical power dissipation - are guaranteed across this full range. The 'C' grade suffix explicitly denotes this commercial-grade rating.
Does the LTC1411CG#TRPBF require an external clock source?
No, the LTC1411CG#TRPBF does not require an external clock. It integrates a factory-trimmed internal clock that guarantees 2.5 Msps sampling rate with 250–350 ns conversion time. External clocking is unsupported; timing is controlled solely by the CONVST signal edge, eliminating clock distribution complexity and jitter sensitivity.
How does the out-of-range (OTR) function work with the LTC1411CG#TRPBF?
The LTC1411CG#TRPBF asserts OTR high when the analog input exceeds the selected span. Combined with D13 (MSB), it distinguishes overrange (D13=0, OTR=1) from underrange (D13=1, OTR=1). This hardware flag enables immediate fault handling without CPU intervention - critical for protecting downstream signal processing stages in real-time systems using the LTC1411CG#TRPBF.
Can the LTC1411CG#TRPBF operate with a 3.3V digital supply?
Yes, the LTC1411CG#TRPBF supports OVDD = 3 V or 5 V for its digital output drivers (D13–D0, OTR, BUSY). Analog supplies (AVP, AVDD) must remain at 5 V, but the 3 V OVDD option allows direct interfacing with 3.3 V logic families while maintaining full 14-bit performance and timing specs - a key advantage for mixed-voltage system integration using the LTC1411CG#TRPBF.
What is the purpose of the REFCOM2 pin on the LTC1411CG#TRPBF?
The REFCOM2 pin on the LTC1411CG#TRPBF provides the scaled reference voltage (4.05 V nominal) that sets the ADC's full-scale range. Its voltage is determined by PGA0/PGA1 states and drives the internal DAC; changing PGA settings alters REFCOM2 level, thereby selecting one of four input spans (±1.8 V to ±0.64 V). A 10 µF tantalum capacitor is required at REFCOM2 for stability during range switching.
LTC1411CG#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 36-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 2.5M
- 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:
- 36-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC1411CG#TRPBF FAQ
1.How can I place an order for LTC1411CG#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1411CG#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 LTC1411CG#TRPBF reliable?
The price and inventory of LTC1411CG#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1411CG#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC1411CG#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1411CG#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1411CG#TRPBF?
LTC1411CG#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1411CG#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 LTC1411CG#TRPBF?
For technical support, including LTC1411CG#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1411CG#TRPBF requirements.
6.How does Aetrix verify that LTC1411CG#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC1411CG#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 LTC1411CG#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC1411CG#TRPBF?
All LTC1411CG#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1411CG#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 LTC1411CG#TRPBF part is unused and in its original packaging.
Return procedure for LTC1411CG#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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