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Analog Devices Inc. LTC1407CMSE-1#PBF
- Part No.:
- LTC1407CMSE-1#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC1407CMSE-1#PBF.pdf
- Description:
- IC ADC 12BIT PIPELINED 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,686
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Product details
Overview
LTC1407CMSE-1#PBF from Analog Devices (formerly Linear Technology) is a 14-bit, 3Msps simultaneous-sampling dual-channel ADC with two fully differential inputs, ±1.25V input range, 80dB CMRR at 100kHz, and 10μW sleep shutdown mode. It operates from a single 3V supply in a 10-lead MSOP package and is used in high-speed portable data acquisition systems requiring precise phase-matched sampling.
For engineers reviewing the LTC1407CMSE-1#PBF datasheet, LTC1407CMSE-1#PBF pinout, LTC1407CMSE-1#PBF application, or LTC1407CMSE-1#PBF equivalent, key selection criteria include simultaneous differential sampling capability, 1.5Msps per channel throughput, internal 2.5V reference with external overdrive support, 3-wire serial interface timing compliance, and MSOP-10 thermal performance under continuous conversion load.
Technical Context
The LTC1407CMSE-1#PBF implements two independent sample-and-hold circuits triggered synchronously on the rising edge of CONV, enabling true simultaneous capture of CH0 and CH1 differential inputs. Each channel converts at 1.5Msps using a successive-approximation architecture with 14-bit resolution (1LSB = 152μV) and internal 2.5V bandgap reference.
Its analog front-end supports 0V to VDD common-mode voltage while maintaining ±1.25V differential swing, and features 13pF input capacitance, 39ns acquisition time, and 200ps inter-channel aperture skew. The 3-wire serial interface outputs two 14-bit words in 32 SCK cycles with three-state SDO and fixed 1.2ns CONV-to-HOLD timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit with no missing codes; enables 152μV LSB quantization for precision DC and AC measurements |
| Sampling Rate | 3Msps aggregate (1.5Msps per channel); supports Nyquist-limited signal capture up to 5MHz full linear bandwidth |
| Differential Input Range | ±1.25V; allows direct interfacing with AC-coupled sensors without external level-shifting circuitry |
| Common-Mode Rejection | 80dB at 100kHz; suppresses ground-loop noise and enables clean measurement in electrically noisy industrial environments |
| Power Consumption | 4.7mA active current (14mW typical at 3V); enables battery-powered portable instrumentation with >10-hour runtime |
| Shutdown Power | 10μW sleep mode; reduces system standby power by >99.9% during idle intervals without losing configuration state |
| Reference Voltage | 2.5V internal bandgap (±15ppm/°C tempco); provides stable scaling without external reference components unless higher accuracy is required |
Pinout & Package
Package: 10-lead plastic MSOP (MSE), exposed pad (Pin 11) soldered to PCB ground plane for thermal and electrical integrity; θJA = 40°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0+ | Noninverting input, Channel 0 | Differential pair input with ±1.25V swing relative to CH0–; absolute voltage must remain within 0V to VDD |
| CH0– | Inverting input, Channel 0 | Completes differential pair for CH0; same voltage constraints and noise rejection as CH0+ |
| VREF | Internal reference output | 2.5V bandgap source; requires 10μF ceramic bypass to GND; can be overdriven by external ≥2.55V reference |
| CH1+ | Noninverting input, Channel 1 | Independent differential input synchronized to CH0+; enables I/Q or multiphase sampling |
| CH1– | Inverting input, Channel 1 | Completes differential pair for CH1; matched gain/offset to CH0– for channel-to-channel consistency |
| GND (Pins 6 & 11) | Analog/digital ground | Single ground node shared by analog and digital sections; exposed pad must be soldered for thermal dissipation and low-impedance return path |
| VDD | Positive supply | 3V single supply (2.7V–3.6V range); powers entire device including reference, S&H, and serial interface |
| SDO | Three-state serial data output | Outputs 14-bit 2's complement words for both channels in 32-clock sequence; Hi-Z when not active |
| SCK | Serial clock input | Drives data output timing; rising edge clocks data; also wakes device from nap/sleep modes |
| CONV | Convert start input | Rising edge initiates simultaneous sampling; pulse count determines nap (2 pulses) or sleep (≥4 pulses) entry |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous differential sampling | Enables phase-coherent acquisition across two channels for I/Q demodulation or motor current sensing without timing skew errors |
| 80dB CMRR at 100kHz | Eliminates need for external instrumentation amplifiers in noisy industrial settings where common-mode interference exceeds 100mV |
| 10μW sleep shutdown | Reduces system-level quiescent power to microampere levels during sensor idle periods, extending battery life in portable DAQ devices |
| Internal 2.5V reference with external overdrive | Provides calibrated full-scale range out-of-box while allowing upgrade to higher-accuracy external references (e.g., LT6655) without layout changes |
| 3-wire serial interface with 32-clock frame | Ensures compatibility with standard SPI controllers and simplifies FPGA/CPLD interface design with deterministic timing and no CS pin requirement |
| 200ps inter-channel aperture skew | Maintains <0.02° phase error at 1MHz input frequency, critical for vector measurements in RF and power electronics applications |
Applications
| Telecommunications I/Q Demodulation | Data Acquisition Systems |
|---|---|
Use Scenario: Capturing in-phase and quadrature baseband signals from RF downconverters in software-defined radios. IC Role / Device Role / Timing Role: Simultaneous sampling ADC providing phase-aligned digitization of I and Q analog paths with sub-degree timing coherence. Use Value: Eliminates inter-channel timing mismatch that would otherwise distort constellation diagrams and increase EVM in LTE/5G receivers. |
Use Scenario: High-speed monitoring of multiple analog sensor outputs (e.g., vibration, temperature, pressure) in industrial PLCs. IC Role / Device Role / Timing Role: Dual-channel synchronized converter acquiring correlated physical parameters without sample misalignment artifacts. Use Value: Enables accurate cross-parameter analysis (e.g., phase relationship between motor current and shaft position) for predictive maintenance algorithms. |
| Multiphase Motor Control | Uninterruptible Power Supplies |
Use Scenario: Real-time current sensing across two motor phases in brushless DC or PMSM drives. IC Role / Device Role / Timing Role: Simultaneous sampling ADC capturing phase currents at identical instants for precise field-oriented control torque calculation. Use Value: Prevents torque ripple caused by sequential sampling delay, improving motor efficiency and acoustic noise performance. |
Use Scenario: Monitoring AC line voltage and battery voltage simultaneously during transfer switching in UPS units. IC Role / Device Role / Timing Role: Dual-channel converter measuring grid and DC bus voltages with zero inter-channel latency for fast switchover decisions. Use Value: Ensures seamless transition between utility and battery power by eliminating timing-induced voltage comparison errors during critical 4ms window. |
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 |
|---|---|---|---|
| ADS8327IDRCT | 16-bit, 1Msps, single-supply 2.7–5.5V, no internal reference, SPI-compatible but requires external REF | Higher resolution but lower speed; lacks simultaneous sampling - uses internal mux for pseudo-simultaneous operation | Select when DC accuracy > dynamic performance; avoid if phase coherence between channels is mandatory |
| AD7357BRUZ | 14-bit, 4.2Msps, dual 2.5V supplies, internal reference, parallel/serial interface, larger 32-lead LFCSP | Higher throughput and better SNR (74dB), but requires dual supply and occupies 3× PCB area of LTC1407CMSE-1#PBF | Select for higher-speed applications where board space and supply complexity are acceptable trade-offs |
Compared with ADS8327IDRCT and AD7357BRUZ, the LTC1407CMSE-1#PBF uniquely delivers true simultaneous sampling in a compact MSOP-10 package with ultra-low 10μW sleep power, making it optimal for portable, phase-critical, and power-constrained dual-channel acquisition where pin count and thermal footprint are limiting factors.
Availability
LTC1407CMSE-1#PBF is available at Aetrix Electronics and suitable for telecommunications infrastructure, industrial data acquisition systems, and uninterruptible power supplies requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for LTC1407CMSE-1#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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LTC1407 family was designed specifically for portable, battery-operated instrumentation requiring simultaneous sampling, low power, and small form factor - targeting applications where phase coherence, power efficiency, and integration density outweigh raw resolution or speed.
FAQ
What is the maximum sampling rate per channel for the LTC1407CMSE-1#PBF?
The LTC1407CMSE-1#PBF achieves 1.5Msps per channel with true simultaneous sampling across both differential inputs. Its aggregate sampling rate is 3Msps, and it maintains full 14-bit performance up to this rate with specified SINAD of 72.0dB at 100kHz input frequency. The minimum sampling period is 667ns, enforced by internal timing logic tied to the CONV signal.
Does the LTC1407CMSE-1#PBF require an external reference voltage?
No, the LTC1407CMSE-1#PBF includes a factory-trimmed 2.5V internal bandgap reference with ±15ppm/°C tempco and 600μV/V line regulation. VREF (Pin 3) must be bypassed with a 10μF ceramic capacitor to GND. However, the pin supports external overdrive with voltages from 2.55V to VDD, enabling higher-accuracy reference substitution when needed.
How does the LTC1407CMSE-1#PBF enter and exit sleep mode?
The LTC1407CMSE-1#PBF enters sleep mode when four or more CONV pulses are applied while SCK is held static (high or low). Sleep mode draws only 10μW. To wake, a single SCK pulse suffices - the internal reference settles in 2ms (with 10μF load) before valid conversions resume. Nap mode (3mW) activates after two CONV pulses and wakes faster.
What is the analog input voltage range specification for the LTC1407CMSE-1#PBF?
The LTC1407CMSE-1#PBF accepts differential inputs from –1.25V to +1.25V (i.e., 2.5Vpp span) across each channel pair (CH0+/CH0– and CH1+/CH1–). The absolute voltage on any analog input pin must remain between GND and VDD (0V to 3.6V). Exceeding ±1.25V differential causes code clamping at full scale or zero scale.
Is the LTC1407CMSE-1#PBF pin-compatible with other variants in the LTC1407 family?
Yes, the LTC1407CMSE-1#PBF shares identical pinout and package (10-lead MSOP) with all LTC1407/LTC1407A variants including LTC1407IMSE-1#PBF and LTC1407ACMSE-1#PBF. Differences lie in grade (C-grade = 0°C to 70°C), resolution (LTC1407-1 = 12-bit, LTC1407A-1 = 14-bit), and initial offset/gain error specs - all functionally compatible at the board level.
LTC1407CMSE-1#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:
- 0°C ~ 70°C
- Supplier Device Package:
- 10-MSOP-EP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC1407CMSE-1#PBF FAQ
1.How can I place an order for LTC1407CMSE-1#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1407CMSE-1#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 LTC1407CMSE-1#PBF reliable?
The price and inventory of LTC1407CMSE-1#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1407CMSE-1#PBF is usually 5 days.
3.What payment methods are accepted for LTC1407CMSE-1#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1407CMSE-1#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1407CMSE-1#PBF?
LTC1407CMSE-1#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1407CMSE-1#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 LTC1407CMSE-1#PBF?
For technical support, including LTC1407CMSE-1#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1407CMSE-1#PBF requirements.
6.How does Aetrix verify that LTC1407CMSE-1#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1407CMSE-1#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 LTC1407CMSE-1#PBF meets industry standards.
7.What is the process for return or replacement of LTC1407CMSE-1#PBF?
All LTC1407CMSE-1#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1407CMSE-1#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 LTC1407CMSE-1#PBF part is unused and in its original packaging.
Return procedure for LTC1407CMSE-1#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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