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Analog Devices Inc. LTC1407IMSE#PBF
- Part No.:
- LTC1407IMSE#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC1407IMSE#PBF.pdf
- Description:
- IC ADC 12BIT PIPELINED 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:978
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Product details
Overview
LTC1407IMSE#PBF from Analog Devices (formerly Linear Technology) is a 14-bit, 3Msps simultaneous-sampling dual-channel ADC with two fully differential inputs, 1.5Msps per channel throughput, 80dB CMRR at 100kHz, and 3V single-supply operation - designed for high-speed portable data acquisition in multiphase motor control and I/Q demodulation systems.
For engineers reviewing the LTC1407IMSE#PBF datasheet, LTC1407IMSE#PBF pinout, LTC1407IMSE#PBF application, or LTC1407IMSE#PBF equivalent, key selection criteria include simultaneous sampling skew (≤200ps), internal 2.5V reference accuracy (±15 ppm/°C), Sleep mode power (10μW), unipolar 0V–2.5V differential input range, and MSOP-10 package compatibility with space-constrained PCB layouts.
Technical Context
The LTC1407IMSE#PBF implements two independent sample-and-hold circuits triggered simultaneously on the rising edge of CONV, followed by interleaved 14-bit successive-approximation conversions at 1.5Msps per channel. Its internal 2.5V bandgap reference supports external overdrive (2.55V–VDD) and settles in 2ms after Sleep wake-up.
Digital interface uses a 3-wire SPI-compatible serial port (SCK, CONV, SDO) with 32-clock output framing for both channels. Acquisition time is 39ns, aperture jitter is 0.3ps RMS, and channel-to-channel skew is specified at ≤200ps - enabling precise phase-matched sampling for coherent signal processing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit (LTC1407A variant); ensures 153μV LSB step size for 0V–2.5V full-scale range |
| Sampling Rate | 3Msps total (1.5Msps per channel); enables real-time capture of signals up to 5MHz full-power bandwidth |
| Common Mode Rejection | 80dB at 100kHz; suppresses ground-loop noise and enables clean differential measurement in noisy industrial environments |
| Power Consumption | 4.7mA active current (14mW typ at 3V); supports battery-powered instrumentation with Nap (3mW) and Sleep (10μW) modes |
| Input Range | 0V to 2.5V differential swing; absolute pin voltage range extends from GND to VDD (0–3.6V), simplifying single-supply sensor interfacing |
| Reference Voltage | 2.5V internal bandgap (±15 ppm/°C tempco); externally overdrivable to 3.3V for extended dynamic range or improved SNR |
| Timing Skew | ≤200ps CH0–CH1 aperture skew; preserves phase coherence between channels for vector measurements and I/Q processing |
Pinout & Package
Package: 10-lead MSOP (MSE), exposed pad tied to GND. Requires soldering of exposed pad to PCB ground plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0+ (Pin 1) | Noninverting input, Channel 0 | Differential pair with CH0–; accepts 0–VDD absolute voltage, contributes to 0–2.5V differential swing |
| CH0– (Pin 2) | Inverting input, Channel 0 | Completes differential pair; common-mode range matches CH0+, enabling rejection of shared noise |
| VREF (Pin 3) | Internal 2.5V reference output | Bypassed with 10μF + 0.1μF capacitors; can be overdriven externally to scale input range |
| CH1+ (Pin 4) | Noninverting input, Channel 1 | Independent differential input; sampled simultaneously with CH0+ for synchronized dual-channel acquisition |
| CH1– (Pin 5) | Inverting input, Channel 1 | Matches CH1+ timing and common-mode behavior; enables matched gain/offset tracking vs CH0 |
| GND (Pins 6, 11) | Analog/digital ground & exposed pad | Single low-impedance return path for analog currents and digital outputs; exposed pad must be soldered |
| VDD (Pin 7) | 3V supply input | Powers entire device; requires local 10μF + 0.1μF bypassing to minimize supply-induced noise coupling |
| SDO (Pin 8) | Three-state serial data output | Outputs 32-bit frame (14-bit CH0 + 14-bit CH1) aligned to SCK rising edges; Hi-Z when inactive |
| SCK (Pin 9) | Serial clock input | Controls data timing and conversion sequencing; one pulse wakes from Sleep, multiple pulses enter Nap/Sleep |
| CONV (Pin 10) | Convert start trigger | Rising edge initiates simultaneous sampling; pulse count determines power mode (active/Nap/Sleep) |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous sampling | Guarantees <200ps inter-channel aperture skew for phase-coherent dual-channel acquisition in motor control and communications |
| Low-power Sleep mode | 10μW quiescent power enables rapid wake-up (<2ms reference settling) without sacrificing precision in portable or energy-sensitive systems |
| Integrated 2.5V reference | Factory-trimmed ±15 ppm/°C tempco eliminates need for external reference components while supporting external overdrive for flexibility |
| 3-wire serial interface | Compatible with standard SPI controllers using only SCK, CONV, and SDO - reduces GPIO count and simplifies host integration |
| High CMRR at RF frequencies | 80dB rejection at 100kHz and >60dB up to 1MHz enables reliable operation in electrically noisy industrial or telecom environments |
Applications
| Multiphase Motor Control | I/Q Demodulation |
|---|---|
|
Use Scenario: Real-time current sensing across three motor phases with synchronized sampling to compute torque and flux vectors. IC Role / Device Role / Timing Role: Dual-channel simultaneous ADC capturing phase currents with <200ps skew to preserve spatial relationship in rotating field calculations. Use Value: Enables accurate field-oriented control (FOC) without interpolation delay or phase mismatch errors that degrade efficiency and cause torque ripple. |
Use Scenario: Direct sampling of RF quadrature signals (I and Q paths) after mixer downconversion in software-defined radio receivers. IC Role / Device Role / Timing Role: Simultaneous acquisition of in-phase and quadrature baseband signals to maintain phase orthogonality critical for constellation fidelity. Use Value: Prevents image distortion and EVM degradation caused by timing skew between I and Q paths, supporting >70dB SFDR performance. |
| Data Acquisition Systems | Industrial Control |
|
Use Scenario: High-speed monitoring of multiple analog sensors (voltage, temperature, vibration) in programmable logic controller (PLC) backplanes. IC Role / Device Role / Timing Role: Dual-channel ADC with 0V–2.5V unipolar differential input range interfacing directly to isolated sensor front-ends. Use Value: Eliminates external level-shifting and amplification stages while maintaining 72dB SINAD at 100kHz for sub-0.1% measurement accuracy. |
Use Scenario: Closed-loop feedback sensing in servo drives where position, velocity, and current loops require deterministic latency and channel matching. IC Role / Device Role / Timing Role: Simultaneous sampling of motor current and bus voltage to compute instantaneous power and detect fault conditions. Use Value: Enables cycle-accurate protection triggering and adaptive control algorithms by guaranteeing temporal alignment across critical feedback signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel simultaneous-sampling ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8326IDGSR | 16-bit, 1Msps, single-supply 2.7–5.5V; no integrated reference; requires external REF; higher resolution but lower speed | Better DC accuracy for precision instrumentation; unsuitable for >1.5Msps real-time control loops due to throughput limit | Select when absolute linearity (<±0.5LSB INL) and 16-bit resolution outweigh speed requirements. |
| AD7357BRUZ | 14-bit, 4.2Msps dual-channel; 3.3V supply only; no internal reference; higher power (22mW); SPI-compatible 4-wire interface | Higher throughput for wideband IF sampling; lacks Sleep mode; requires external reference and more board area | Select when >3Msps aggregate sampling is required and system power budget allows 22mW active draw. |
Compared with ADS8326IDGSR and AD7357BRUZ, the LTC1407IMSE#PBF uniquely balances 14-bit resolution, 3Msps aggregate rate, integrated 2.5V reference, and ultra-low Sleep power (10μW) in a 3mm × 3mm MSOP package - making it optimal for portable, phase-critical, and energy-constrained dual-channel acquisition.
Availability
LTC1407IMSE#PBF is available at Aetrix Electronics and suitable for multiphase motor control, I/Q demodulation, and industrial data acquisition requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for LTC1407IMSE#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 (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing ICs, serving industrial, automotive, communications, and healthcare markets.
The LTC1407 series belongs to Linear's precision high-speed ADC product line, engineered specifically for applications demanding simultaneous sampling, low power, and small footprint - such as portable test equipment and real-time control systems.
FAQ
What is the operating temperature range for the LTC1407IMSE#PBF?
The LTC1407IMSE#PBF is rated for –40°C to +85°C operation, as indicated by the "I" grade suffix in the part number. This industrial temperature range ensures reliable performance in harsh environments such as factory automation, motor drives, and outdoor instrumentation where ambient temperatures fluctuate widely. The device maintains full specification compliance across this range, including offset match, gain match, and CMRR performance.
Does the LTC1407IMSE#PBF support external reference voltage?
Yes, the LTC1407IMSE#PBF supports external reference voltage applied to the VREF pin (Pin 3). The internal 2.5V reference is an open-drain P-channel output, allowing overdrive with an external source between 2.55V and VDD (up to 3.6V). When using an external reference, the differential input range scales proportionally - e.g., a 3.3V reference yields a 0–3.3V unipolar input span - enabling improved dynamic range or SNR in specific signal chain configurations.
How does the Sleep mode function on the LTC1407IMSE#PBF?
Sleep mode on the LTC1407IMSE#PBF is activated by applying four or more CONV pulses while SCK is held static (high or low), reducing supply current to 10μW. Upon wake-up, the internal 2.5V reference requires 2ms to settle before valid conversions resume. This mode is ideal for duty-cycled acquisition systems where brief bursts of high-speed sampling alternate with extended idle periods - such as battery-powered condition monitoring nodes.
What is the maximum differential input voltage the LTC1407IMSE#PBF can handle?
The LTC1407IMSE#PBF accepts a maximum differential input voltage of 2.5V across each channel (CH0+ to CH0–, CH1+ to CH1–). Exceeding this causes the output code to saturate at full scale (all ones). The absolute voltage on any analog input pin must remain within GND to VDD (0–3.6V); violation risks latch-up or damage. Input leakage is limited to 1μA, and input capacitance is 13pF, defining drive strength and anti-alias filter design constraints.
Can the LTC1407IMSE#PBF be used with a 5V microcontroller SPI interface?
No - the LTC1407IMSE#PBF operates exclusively from a 2.7V–3.6V supply and its digital I/O is not 5V-tolerant. Driving SCK or CONV with 5V logic violates Absolute Maximum Ratings (VIH max = VDD + 0.3V ≈ 3.9V) and risks permanent damage. Interface with 5V microcontrollers requires level translation (e.g., TXB0104 or discrete MOSFET buffers) on all digital lines, or use of a 3.3V-compatible MCU with native SPI peripherals.
LTC1407IMSE#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 3M
- Number of Inputs:
- 2
- Input Type:
- Differential, Single Ended
- Data Interface:
- SPI
- Configuration:
- S/H-MUX-ADC
- Ratio - S/H:ADC:
- 2:1
- Number of A/D Converters:
- 1
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 2.7V ~ 3.6V
- Voltage - Supply, Digital:
- 2.7V ~ 3.6V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 10-MSOP-EP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC1407IMSE#PBF FAQ
1.How can I place an order for LTC1407IMSE#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1407IMSE#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 LTC1407IMSE#PBF reliable?
The price and inventory of LTC1407IMSE#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1407IMSE#PBF is usually 5 days.
3.What payment methods are accepted for LTC1407IMSE#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1407IMSE#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1407IMSE#PBF?
LTC1407IMSE#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1407IMSE#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 LTC1407IMSE#PBF?
For technical support, including LTC1407IMSE#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1407IMSE#PBF requirements.
6.How does Aetrix verify that LTC1407IMSE#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1407IMSE#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 LTC1407IMSE#PBF meets industry standards.
7.What is the process for return or replacement of LTC1407IMSE#PBF?
All LTC1407IMSE#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1407IMSE#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 LTC1407IMSE#PBF part is unused and in its original packaging.
Return procedure for LTC1407IMSE#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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