My Inquiry
My Account
Texas Instruments ADC141S626CIMM/NOPB
- Part No.:
- ADC141S626CIMM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADC141S626CIMM/NOPB.pdf
- Description:
- IC ADC 14BIT SAR 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,954
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADC141S626CIMM/NOPB from Texas Instruments is a 14-bit, successive-approximation register (SAR) analog-to-digital converter with true differential inputs, 50–250 kSPS sampling rate, ±0.95 LSB INL/DNL, and zero-power track mode. It operates from independent 2.7V–5.5V analog (VA) and digital (VIO) supplies, accepts external reference (1.0V to VA), and targets low-power sensor interface applications in portable medical instruments and motor control systems.
For engineers reviewing the ADC141S626CIMM/NOPB datasheet, ADC141S626CIMM/NOPB pinout, ADC141S626CIMM/NOPB application, or ADC141S626CIMM/NOPB equivalent, key selection considerations include guaranteed 14-bit no-missing-code performance, differential input common-mode rejection up to 76 dB, SPI/QSPI/MICROWIRE-compatible serial interface with no pipeline latency, and ultra-low 4 µW power-down consumption at 3V.
Technical Context
The ADC141S626CIMM/NOPB implements a capacitive redistribution SAR architecture with integrated sample-and-hold, preserving differential signal integrity from input pins through conversion. Its internal switch matrix connects +IN/−IN/VREF to a capacitor array during acquisition, enabling precise differential measurement while rejecting common-mode noise.
Conversion is clocked by an external SCLK (0.9–4.5 MHz); each full 14-bit result requires 18 SCLK cycles and appears on DOUT MSB-first as binary 2's complement with no latency. Chip Select (CS) controls acquisition mode: high for zero-power track, falling edge initiates conversion, and rising edge terminates output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit with guaranteed no missing codes - ensures monotonicity and unambiguous code mapping across full range. |
| Sampling Rate | 50 kSPS to 250 kSPS - supports real-time monitoring of medium-bandwidth sensors (e.g., bridge-based strain gauges, RTDs). |
| INL / DNL | ±0.95 LSB (max) - limits integral and differential nonlinearity to <0.006% FS, critical for precision DC and low-frequency AC measurements. |
| SNR / ENOB | 82 dBc (max) / 13.3 bits (min) - delivers >13-bit effective resolution at 20 kHz input, suitable for 12-bit+ system accuracy. |
| Power Consumption | 2.0 mW @ 200 kSPS/3V; 4 µW @ power-down - enables battery operation for >1-year life in intermittent-sampling IoT nodes. |
| Reference Range | 1.0 V to VA - allows flexible scaling (e.g., 2.048 V ref for 0–4.096 V differential input) without external op-amp buffering. |
| Common-Mode Rejection | 76 dB - suppresses shared noise (e.g., EMI, supply ripple) between +IN and −IN, essential for noisy industrial environments. |
Pinout & Package
ADC141S626CIMM/NOPB is housed in a 10-lead VSSOP (DGK) package, 3.0 mm × 3.0 mm × 1.0 mm, with exposed thermal pad (not electrically connected). Pin pitch is 0.5 mm; recommended reflow profile complies with TI's lead-free specifications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VREF (Pin 1) | External reference voltage input | Defines full-scale differential input range (±VREF); must be decoupled with ≥0.1 µF ceramic + 1–10 µF bulk capacitor. |
| +IN (Pin 2) | Non-inverting analog input | Positive terminal of true differential pair; accepts input common-mode voltage from 0 to VA per datasheet Figure 41. |
| −IN (Pin 3) | Inverting analog input | Negative terminal of true differential pair; differential input range is −VREF to +VREF with proper VCM. |
| GND (Pins 4, 5) | Analog/digital ground reference | Dual GND pins reduce ground bounce; both must connect to low-impedance system ground plane. |
| CS (Pin 6) | Chip select (active-low) | Falling edge starts conversion; HIGH places ADC in zero-power track mode (4 µW typical at 3V). |
| DOUT (Pin 7) | Serial data output | MSB-first 2's complement output: 2 null bits + 14 data bits; valid on rising SCLK edge after falling SCLK edge. |
| SCLK (Pin 8) | Serial clock input | Drives conversion timing and data transfer; 0.9–4.5 MHz range; duty cycle not critical if tCH/tCL ≥67 ns. |
| VIO (Pin 9) | Digital I/O supply | Independent 2.7–5.5 V rail for CS/SCLK/DOUT logic; allows interfacing with 3V microcontrollers while VA = 5V. |
| VA (Pin 10) | Analog supply | 2.7–5.5 V analog core supply; powers internal SAR, comparator, and sample-and-hold; decouple with 0.1 µF + 1–10 µF. |
Key Features
| Feature | Design Value |
|---|---|
| True differential input architecture | Maintains signal integrity from +IN/−IN through internal capacitor array, delivering 76 dB CMRR and eliminating need for external instrumentation amplifiers in balanced sensor interfaces. |
| Zero-power track mode | Reduces current draw to 4 µW (3V) or 13 µW (5V) when CS is HIGH, enabling ultra-low-power wake-on-event sensing in battery-powered devices. |
| Independent VA and VIO supplies | Allows analog section to run at 5V for optimal SNR while digital interface operates at 3V, simplifying mixed-voltage system design without level shifters. |
| SPI/QSPI/MICROWIRE compatibility | Uses standard 3-wire serial interface (CS/SCLK/DOUT) with no additional control lines-reduces MCU GPIO count and PCB routing complexity. |
| No pipeline latency | Output reflects conversion currently in progress; DOUT data is valid on rising SCLK edge following falling SCLK edge-enables deterministic real-time control loops. |
Applications
| Automotive Navigation | Portable Medical Instruments |
|---|---|
Use Scenario: High-precision angular position sensing using resolver-to-digital conversion in EPS (Electric Power Steering) modules. IC Role / Device Role / Timing Role: ADC141S626CIMM/NOPB digitizes differential resolver sine/cosine outputs at 100 kSPS with 14-bit linearity to feed motor control MCU. Use Value: ±0.95 LSB INL ensures sub-0.01° angular resolution; differential input rejects engine EMI; 2.0 mW power enables compact, fanless module design. |
Use Scenario: Battery-powered glucose meter measuring electrochemical current from test strip via transimpedance amplifier. IC Role / Device Role / Timing Role: ADC141S626CIMM/NOPB performs single-shot 14-bit conversion of amplified differential current signal at 50 kSPS. Use Value: Zero-power track mode extends battery life >2 years; 82 dB SNR resolves 100 nA current steps; VREF scaling supports 0–1.2 V input range. |
| Industrial Motor Control | Direct Sensor Interface |
Use Scenario: Closed-loop current sensing in BLDC inverter drives using isolated shunt-based feedback. IC Role / Device Role / Timing Role: ADC141S626CIMM/NOPB samples differential voltage across shunt resistor synchronized to PWM switching edges. Use Value: 250 kSPS max rate captures fast current transients; 76 dB CMRR rejects common-mode noise from high dv/dt gate drivers. |
Use Scenario: Direct connection to Wheatstone bridge pressure transducers in HVAC remote sensors. IC Role / Device Role / Timing Role: ADC141S626CIMM/NOPB interfaces directly to bridge output without signal conditioning, using VREF = 2.5 V. Use Value: True differential input eliminates need for instrumentation amp; 13.3-bit ENOB meets ASME B40.200 accuracy requirements; 4 µW sleep current enables 10-year battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 14-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7816U | 12-bit resolution, 200 kSPS, single-ended input only, no VIO independence | Lacks differential input and separate VIO - unsuitable for noisy bridge sensor interfaces requiring CMRR | Select ADC141S626CIMM/NOPB when 14-bit linearity, differential input, or dual-supply flexibility are required. |
| ADS8325IBDR | 16-bit resolution, 100 kSPS, SPI interface, but requires external reference buffer and has higher 12 mW power | Better resolution but lower speed and higher power - trades off sampling rate and energy efficiency for precision | Choose ADC141S626CIMM/NOPB for battery-operated systems needing 14-bit accuracy at ≤250 kSPS with <2.5 mW active power. |
Compared with ADS7816U and ADS8325IBDR, ADC141S626CIMM/NOPB uniquely balances 14-bit no-missing-code performance, true differential input, zero-power track mode, and independent VA/VIO supplies - making it optimal for portable, noise-immune, energy-constrained sensor digitization where 12-bit is insufficient and 16-bit power budgets are prohibitive.
Availability
ADC141S626CIMM/NOPB is available at Aetrix Electronics and suitable for automotive navigation, portable medical instruments, industrial motor control, and direct sensor interface applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ADC141S626CIMM/NOPB 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
Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, designing and manufacturing analog ICs, embedded processors, and digital signal processors for industrial, automotive, and consumer markets.
ADC141S626CIMM/NOPB belongs to TI's precision SAR ADC product line, engineered specifically for low-power, high-accuracy sensor signal digitization in space- and energy-constrained systems - emphasizing differential input fidelity, flexible supply architecture, and seamless microcontroller integration.
FAQ
What is the maximum sampling rate supported by the ADC141S626CIMM/NOPB?
The ADC141S626CIMM/NOPB supports a maximum sampling rate of 250 kSPS under specified conditions (VA = VIO = VREF = 5.0 V, fSCLK = 4.5 MHz). This rate is derived from the minimum SCLK period and fixed 18-cycle conversion requirement. At lower supply voltages or clock frequencies, the achievable rate scales down - e.g., 200 kSPS at 3.0 V/3.6 MHz - as confirmed in the Electrical Characteristics table on page 5 of the SNAS434B datasheet.
Does the ADC141S626CIMM/NOPB require an external reference voltage?
Yes, the ADC141S626CIMM/NOPB requires an external reference voltage applied to the VREF pin (Pin 1). The reference must be between 1.0 V and VA, and it directly sets the full-scale differential input range (±VREF). Unlike internally referenced ADCs, this external reference allows users to optimize dynamic range and resolution for specific sensor outputs - for example, using a 2.048 V reference to match a 0–4.096 V bridge output span.
How does the zero-power track mode function in the ADC141S626CIMM/NOPB?
The zero-power track mode in ADC141S626CIMM/NOPB is activated when the CS pin is held HIGH. In this state, the internal sampling capacitor continuously tracks the analog input voltage (+IN and −IN), while analog and digital supply currents drop to 4 µW (3V) or 13 µW (5V). This mode eliminates conversion-related power spikes and enables ultra-low-quiescent-current wake-up architectures - ideal for battery-powered systems that sample infrequently but demand rapid response upon event detection.
Can the ADC141S626CIMM/NOPB interface directly with a 3.3V microcontroller?
Yes, the ADC141S626CIMM/NOPB can interface directly with a 3.3V microcontroller using its independent VIO supply (Pin 9). Set VIO = 3.3V while operating VA at 5.0V for optimal analog performance; the DOUT, SCLK, and CS logic levels will then be compatible with 3.3V CMOS thresholds (VIH = 1.9V min, VIL = 0.7V max). No level-shifting circuitry is required, simplifying hardware design and reducing BOM cost.
What is the guaranteed integral nonlinearity (INL) specification for the ADC141S626CIMM/NOPB?
The ADC141S626CIMM/NOPB guarantees an integral nonlinearity (INL) of ±0.95 LSB maximum across the full operating temperature range (−40°C to +85°C) and supply conditions (VA/VIO/VREF = 2.7V to 5.5V). This value is explicitly listed in the "STATIC CONVERTER CHARACTERISTICS" table on page 3 of the SNAS434B datasheet and ensures monotonic behavior and accurate end-point calibration for precision measurement systems.
ADC141S626CIMM/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- microPOWER™
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 250k
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- SPI
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.7V ~ 5.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 10-VSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC141S626CIMM/NOPB FAQ
1.How can I place an order for ADC141S626CIMM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC141S626CIMM/NOPB 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 ADC141S626CIMM/NOPB reliable?
The price and inventory of ADC141S626CIMM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC141S626CIMM/NOPB is usually 5 days.
3.What payment methods are accepted for ADC141S626CIMM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC141S626CIMM/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC141S626CIMM/NOPB?
ADC141S626CIMM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC141S626CIMM/NOPB 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 ADC141S626CIMM/NOPB?
For technical support, including ADC141S626CIMM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC141S626CIMM/NOPB requirements.
6.How does Aetrix verify that ADC141S626CIMM/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC141S626CIMM/NOPB 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 ADC141S626CIMM/NOPB meets industry standards.
7.What is the process for return or replacement of ADC141S626CIMM/NOPB?
All ADC141S626CIMM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC141S626CIMM/NOPB, 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 ADC141S626CIMM/NOPB part is unused and in its original packaging.
Return procedure for ADC141S626CIMM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADC141S626CIMM/NOPB 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…
