My Inquiry
My Account
Texas Instruments ADCS7477AIMF/NOPB
- Part No.:
- ADCS7477AIMF/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-6
- Datasheet:
-
ADCS7477AIMF/NOPB.pdf
- Description:
- IC ADC 10BIT SAR SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,588
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADCS7477AIMF/NOPB from Texas Instruments is a 10-bit, 1-MSPS successive-approximation analog-to-digital converter (SAR ADC) with internal track-and-hold, single-supply operation (2.7 V to 5.25 V), SPI/QSPI/MICROWIRE-compatible serial interface, and supply-as-reference architecture enabling 0–VDD input range. It delivers ±0.2 LSB typical INL and −77 dB THD at 100 kHz for precision signal acquisition in space-constrained automotive and industrial systems.
For engineers reviewing the ADCS7477AIMF/NOPB datasheet, ADCS7477AIMF/NOPB pinout, ADCS7477AIMF/NOPB application, or ADCS7477AIMF/NOPB equivalent, key selection criteria include its 10-bit no-missing-codes resolution, 1 MSPS throughput with 20 MHz SCLK support, shutdown mode consuming <2.5 µW at 5 V, 6-pin SOT-23 footprint, and −40°C to 125°C automotive-grade temperature range.
Technical Context
The ADCS7477AIMF/NOPB implements a charge-redistribution SAR architecture with integrated track-and-hold, where sampling occurs on the falling edge of CS and conversion completes within 16 SCLK cycles. Its straight binary output includes four leading zeros followed by ten data bits and two trailing zeros, synchronized to SCLK falling edges.
It operates across 2.7 V–5.25 V with VDD serving as both power and reference, eliminating external reference components. The device supports full SPI-compatible framing and enters ultra-low-power shutdown (<0.5 µA IDD) when CS remains high and SCLK is inactive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit with no missing codes - guarantees monotonicity and deterministic code transitions over full temperature range. |
| Sampling Rate | 1 MSPS maximum throughput - enables real-time capture of signals up to ~400 kHz Nyquist bandwidth. |
| INL | ±0.2 LSB (typical at 25°C) - ensures high DC accuracy for sensor calibration and closed-loop control applications. |
| THD | −77 dB (typical at 100 kHz) - supports medium-fidelity AC signal digitization in instrumentation and motor control. |
| Power Consumption | 2 mW at 3 V / 10 mW at 5 V during continuous conversion - balances performance and battery life in portable systems. |
| Shutdown Current | 0.5 µA (5 V, SCLK off) - reduces system standby power to sub-microwatt levels for duty-cycled sensing. |
| Input Range | 0 V to VDD - eliminates need for level-shifting circuitry when interfacing with rail-to-rail sensors or amplifiers. |
Pinout & Package
ADCS7477AIMF/NOPB is housed in a 6-pin SOT-23 package (1.60 mm × 2.90 mm body size), optimized for high-density PCB layouts in automotive and portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Positive supply and reference input | Must be bypassed with 0.1 µF + 1 µF capacitors within 1 cm; sets full-scale range (0 to VDD) and powers internal logic/DAC. |
| 2 - GND | Analog/digital ground return | Common reference for analog input, digital I/O, and internal circuitry; requires low-impedance connection to system ground plane. |
| 3 - VIN | Analog input | Single-ended input accepting 0–VDD range; 30 pF input capacitance requires careful driver impedance matching for settling. |
| 4 - SCLK | Serial clock input | Controls conversion timing and data readout; supports 10 kHz–20 MHz frequencies with 40%–60% duty cycle. |
| 5 - SDATA | Serial data output | Tri-state CMOS output delivering 16-bit frame (4 leading zeros + 10 data bits + 2 trailing zeros) on SCLK falling edges. |
| 6 - CS | Chip select input | Falling-edge-triggered conversion start; initiates track-to-hold transition and enables SDATA output; rising edge terminates transfer. |
Key Features
| Feature | Design Value |
|---|---|
| Supply-as-reference architecture | Eliminates external voltage reference ICs and associated layout complexity while maintaining 0–VDD input flexibility. |
| Ultra-low shutdown power | Sub-µA current draw enables aggressive power gating in battery-powered systems without sacrificing wake-up latency (1 µs power-up time). |
| SPI/QSPI/MICROWIRE compatibility | Direct interoperability with common microcontrollers and DSPs without protocol translation or glue logic. |
| Automotive-grade temperature range | Guaranteed operation from −40°C to 125°C meets AEC-Q100 stress requirements for under-hood and infotainment applications. |
| Small-footprint SOT-23 packaging | 1.6 mm × 2.9 mm outline reduces board area by >60% versus SOIC-8 alternatives, critical for compact navigation and medical modules. |
Applications
| Automotive Navigation Systems | Portable Medical Sensors |
|---|---|
|
Use Scenario: Digitizing analog outputs from GPS antenna front-end filters and inertial measurement unit (IMU) accelerometers in compact vehicle navigation units. IC Role / Device Role / Timing Role: High-speed, low-power SAR ADC performing 1-MSPS sampling with precise timing alignment to MCU-controlled SCLK for synchronized multi-channel acquisition. Use Value: Enables real-time position correction using 10-bit resolution and <1 µs aperture jitter, while fitting into tight PCB spaces alongside RF sections. |
Use Scenario: Converting biopotential signals (ECG, pulse oximetry) in handheld diagnostic devices powered by coin-cell batteries. IC Role / Device Role / Timing Role: Low-noise, rail-to-rail input ADC operating from 3-V supply with shutdown mode activated between measurements to extend battery life. Use Value: Delivers −77 dB THD and ±0.2 LSB INL for clinical-grade waveform fidelity, with 2 mW active power minimizing thermal drift in wearable form factors. |
| Industrial Motor Control Feedback | Factory Automation Sensors |
|
Use Scenario: Sampling current-sense amplifier outputs in brushless DC motor drives requiring fast current loop closure at 10–20 kHz PWM frequencies. IC Role / Device Role / Timing Role: Precision ADC providing deterministic 1-MSPS conversion synchronized to PWM timer interrupts via CS/SCLK handshaking. Use Value: Achieves 10-bit linearity and 1 µs aperture delay to resolve phase-current harmonics critical for field-oriented control algorithms. |
Use Scenario: Interfacing with resistive temperature detectors (RTDs) and strain gauges in modular PLC I/O modules deployed in harsh factory environments. IC Role / Device Role / Timing Role: Robust, wide-temperature ADC supporting direct 0–VDD input scaling and immune to supply ripple due to internal reference coupling. Use Value: Maintains ±0.7 LSB INL over −40°C to 85°C, ensuring consistent calibration across seasonal ambient shifts without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7477AARMZ | 10-bit, 1-MSPS SAR ADC in 6-lead SOT-23; uses external reference; higher typical INL (±0.5 LSB) and THD (−72 dB). | Requires external reference and decoupling network; less suitable for ultra-low-component-count designs. | Choose AD7477AARMZ only if external reference independence or legacy Analog Devices ecosystem integration is required. |
| MCP3201-I/P | 12-bit, 100-kSPS SAR ADC in 8-lead PDIP/SOIC; single-supply 2.7–5.5 V; no shutdown mode; SPI-only interface. | Lower speed and larger package limit use in high-density or battery-critical applications. | Select MCP3201-I/P when higher resolution is prioritized over speed and board area, and shutdown functionality is unnecessary. |
Compared with AD7477AARMZ and MCP3201-I/P, ADCS7477AIMF/NOPB uniquely combines 10-bit/1-MSPS performance, supply-as-reference simplicity, sub-µA shutdown, and 6-pin SOT-23 packaging-making it optimal for space- and power-constrained automotive and portable industrial systems.
Availability
ADCS7477AIMF/NOPB is available at Aetrix Electronics and suitable for automotive navigation systems, portable medical sensors, and industrial motor control applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADCS7477AIMF/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 leader specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in high-reliability data converters and automotive-grade ICs.
The ADCS747x family was designed specifically for cost-sensitive, space-constrained applications demanding high-speed, low-power SAR conversion with minimal external components-targeting automotive, industrial, and portable instrumentation markets.
FAQ
What is the resolution and accuracy of the ADCS7477AIMF/NOPB?
The ADCS7477AIMF/NOPB is a guaranteed 10-bit SAR ADC with no missing codes over −40°C to 85°C. Its typical integral non-linearity (INL) is ±0.2 LSB at 25°C and ±0.7 LSB over the full industrial range, and differential non-linearity (DNL) is −0.2/+0.3 LSB typical-ensuring monotonic behavior and predictable code transitions in closed-loop systems.
How does the ADCS7477AIMF/NOPB interface with microcontrollers?
The ADCS7477AIMF/NOPB uses a standard 3-wire SPI-compatible serial interface (CS, SCLK, SDATA) supporting SPI, QSPI, and MICROWIRE protocols. It outputs a 16-bit frame (4 leading zeros + 10 data bits + 2 trailing zeros) on SCLK falling edges, requiring no configuration registers or command words-enabling plug-and-play integration with most ARM Cortex-M, PIC, and C2000 microcontrollers.
Does the ADCS7477AIMF/NOPB require an external voltage reference?
No. The ADCS7477AIMF/NOPB uses its VDD supply as the reference, supporting a full-scale input range of 0 V to VDD. This eliminates the need for external reference ICs, trimming resistors, or precision voltage dividers-reducing BOM count, layout area, and calibration complexity in cost-sensitive designs.
What is the power consumption profile of the ADCS7477AIMF/NOPB?
At 3 V and 1 MSPS, ADCS7477AIMF/NOPB consumes 2 mW typical; at 5 V, it consumes 10 mW. In shutdown mode (CS high, SCLK inactive), it draws just 0.5 µA at 5 V-equivalent to 2.5 µW-making it ideal for battery-operated systems with intermittent sampling requirements.
Is the ADCS7477AIMF/NOPB qualified for automotive applications?
Yes. The ADCS7477AIMF/NOPB is specified for operation from −40°C to 125°C and is built on Texas Instruments' automotive-qualified process. While not AEC-Q100 certified out-of-box, its electrical and thermal specifications meet or exceed requirements for engine control, body electronics, and infotainment subsystems where extended temperature reliability is mandatory.
ADCS7477AIMF/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 1M
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- SPI, DSP
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- Supply
- Voltage - Supply, Analog:
- 2.7V ~ 5.25V
- Voltage - Supply, Digital:
- 2.7V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- SOT-23-6
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADCS7477AIMF/NOPB FAQ
1.How can I place an order for ADCS7477AIMF/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADCS7477AIMF/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 ADCS7477AIMF/NOPB reliable?
The price and inventory of ADCS7477AIMF/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADCS7477AIMF/NOPB is usually 5 days.
3.What payment methods are accepted for ADCS7477AIMF/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADCS7477AIMF/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADCS7477AIMF/NOPB?
ADCS7477AIMF/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADCS7477AIMF/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 ADCS7477AIMF/NOPB?
For technical support, including ADCS7477AIMF/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADCS7477AIMF/NOPB requirements.
6.How does Aetrix verify that ADCS7477AIMF/NOPB is sourced from the original manufacturer or authorized distributors?
All ADCS7477AIMF/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 ADCS7477AIMF/NOPB meets industry standards.
7.What is the process for return or replacement of ADCS7477AIMF/NOPB?
All ADCS7477AIMF/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADCS7477AIMF/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 ADCS7477AIMF/NOPB part is unused and in its original packaging.
Return procedure for ADCS7477AIMF/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADCS7477AIMF/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…
