My Inquiry
My Account
Texas Instruments ADC10321CIVT/NOPB
- Part No.:
- ADC10321CIVT/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 32-LQFP
- Datasheet:
-
ADC10321CIVT/NOPB.pdf
- Description:
- IC ADC 10BIT TWO-STEP 32TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:147
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADC10321CIVT/NOPB from Texas Instruments is a 10-bit, 20 MSPS analog-to-digital converter with internal sample-and-hold, single +5V operation, 98 mW typical power consumption, and TTL/CMOS or 3V logic I/O compatibility - used in high-speed CCD imaging and digital video acquisition systems.
For engineers reviewing the ADC10321CIVT/NOPB datasheet, ADC10321CIVT/NOPB pinout, ADC10321CIVT/NOPB application, or ADC10321CIVT/NOPB equivalent, key selection criteria include ENOB@10MHz (9.2 bits), conversion latency (2 clock cycles), PSRR (56 dB), and 32-pin TQFP package with force/sense reference architecture for precision biasing.
Technical Context
The ADC10321CIVT/NOPB employs a two-stage pipeline architecture achieving 9.2 effective bits at 10 MHz input with 20 MHz clock, and digitizes analog inputs on the falling edge of CLK with 2-cycle pipeline latency plus tOD (25 ns max) output delay.
Its reference system uses separate force (VREF+F/VREF−F) and sense (VREF+S/VREF−S) pins to compensate for IR drops across PCB traces, enabling precise ladder voltage control via external op-amps while maintaining 1.0 V minimum differential between VREF+S (2.3–4.0 V) and VREF−S (1.3–3.0 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10 bits - guarantees no missing codes over full industrial temperature range (−40°C to +85°C) |
| Conversion Rate | 20 MSPS - supports real-time digitization of video bandwidth signals up to 150 MHz full-power bandwidth |
| ENOB @ 10 MHz | 9.2 bits (typ) - defines usable dynamic resolution for baseband video and communications signals |
| DNL | ±0.35 LSB (typ) - ensures monotonic transfer function critical for imaging linearity |
| Conversion Latency | 2 clock cycles - enables deterministic timing alignment in synchronous sampling systems |
| PSRR | 56 dB - limits full-scale error drift under ±10% supply variation, reducing need for ultra-low-noise LDOs |
| Power Consumption | 98 mW (typ) - enables thermal management in dense PCB layouts without forced air cooling |
Pinout & Package
The ADC10321CIVT/NOPB is housed in a 32-pin Thin Quad Flat Package (TQFP) with exposed thermal pad, designed for industrial temperature operation (−40°C to +85°C) and requiring separate analog/digital ground planes tied near the package.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 30) | Analog Input | Accepts signal within VREF−S to VREF+S range; input capacitance varies 3–5 pF with clock phase |
| VREF+F (Pin 31) | Reference Force | Drives top of internal resistor ladder; requires external buffer to set VREF+S precisely |
| VREF+S (Pin 32) | Reference Sense | Monitors actual voltage at ladder top; zero-current node for high-accuracy feedback |
| VREF−F (Pin 2) | Reference Force | Drives bottom of internal resistor ladder; sinks current to establish VREF−S |
| VREF−S (Pin 1) | Reference Sense | Monitors actual voltage at ladder bottom; enables IR-drop compensation in long trace layouts |
| CLK (Pin 9) | Sampling Clock | Falling-edge triggered; 20 MHz nominal, 25 MHz max; 45–55% duty cycle required |
| PD (Pin 8) | Power Down Control | High = standby mode (<4 mW); outputs enter high-Z state, preserving system bus integrity |
| OE (Pin 26) | Output Enable | Low = data valid on D0–D9; high = tri-state; independent of PD for flexible bus arbitration |
| D0–D9 (Pins 14–19, 22–25) | Digital Outputs | 10-bit straight binary; MSB = D9, LSB = D0; VD I/O pins support 3V or 5V logic levels |
| VA (Pins 3,7,28) | Analog Supply | +4.5V to +5.5V; requires local 10 µF + 0.1 µF bypassing per pin for noise immunity |
| VD (Pins 5,10) | Digital Core Supply | +4.5V to +5.5V; separate bypassing from VA to isolate digital switching noise |
| VD I/O (Pins 12,21) | I/O Driver Supply | +2.7V to +5.5V - allows direct interfacing to 3V FPGA or ASIC without level shifters |
| AGND (Pins 4,27,29) | Analog Ground | Return path for analog circuitry; must be connected to DGND near package per layout guidelines |
| DGND (Pins 6,11) | Digital Ground | Return path for core digital logic; star-ground tie point minimizes ground bounce |
| DGND I/O (Pins 13,20) | I/O Ground | Return for digital output drivers; separates I/O return current from core digital switching |
Key Features
| Feature | Design Value |
|---|---|
| Internal Sample-and-Hold | Enables sustained AC performance beyond Nyquist limit; eliminates need for external SHA in video/CCD front-ends |
| Reference Force/Sense Architecture | Compensates for PCB trace resistance errors, enabling <±0.5% reference accuracy without trimming |
| 3V/5V I/O Compatible Outputs | Allows direct connection to 3V FPGAs or microcontrollers without level-shifting components or additional power rails |
| Low Power Standby Mode | Reduces system idle power by >95% (98 mW → <4 mW), critical for portable or battery-backed imaging modules |
| Ensured No Missing Codes | Guarantees monotonicity across full temperature range - essential for medical imaging and document scanner linearity |
Applications
| Digital Video Acquisition | CCD Imaging Systems |
|---|---|
Use Scenario: Digitizing composite NTSC/PAL video signals in broadcast-grade capture cards operating at 13.5 MHz pixel clock. IC Role / Device Role / Timing Role: Primary A/D converter sampling analog video at 20 MSPS with 2-cycle deterministic latency for frame-synchronized processing. Use Value: 9.2 ENOB at 4.43 MHz ensures >56 dB SINAD for broadcast color fidelity; 56 dB PSRR maintains sync pulse integrity amid noisy digital supply domains. | Use Scenario: Converting analog outputs from linear CCD arrays in high-resolution document scanners and flatbed copiers. IC Role / Device Role / Timing Role: High-speed digitizer synchronized to CCD line clock; interfaces directly to 3.3V FPGA image processors via VD I/O pins. Use Value: No missing codes guarantee pixel-level linearity across full temperature range; low 98 mW power enables compact thermal design in fanless enclosures. |
| Medical Ultrasound Front-End | Electro-Optic Signal Conditioning |
Use Scenario: Digitizing RF echo signals from ultrasound transducers in portable diagnostic equipment with battery life constraints. IC Role / Device Role / Timing Role: Analog front-end ADC capturing wideband echoes up to 10 MHz with minimal aperture jitter (<30 ps) for time-of-flight accuracy. Use Value: 2-cycle latency enables real-time beamforming; standby mode (<4 mW) extends battery runtime during idle probe periods. | Use Scenario: Sampling analog outputs from photodetectors and modulators in fiber-optic test equipment requiring DC-coupled precision. IC Role / Device Role / Timing Role: High-fidelity digitizer for low-distortion (<−70 dB THD) measurement of optical modulation waveforms. Use Value: 9.5 ENOB at 1 MHz supports sub-0.5% amplitude accuracy; force/sense reference architecture maintains calibration stability over temperature drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit, 20+ MSPS analog-to-digital converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS1000IRUGR | 12-bit, 1 MSPS, I²C interface, no internal reference - lower speed, higher resolution, serial output | Targeted at low-speed sensor monitoring, not real-time video or imaging | Select only when resolution > speed and serial interface are prioritized over parallel throughput |
| MAX1186ETL+ | 10-bit, 40 MSPS, 3.3V-only supply, no reference force/sense - higher speed but less flexible biasing | Suitable for high-speed portable instruments where 3.3V rail simplifies power design | Choose when clock rate >25 MSPS is mandatory and external reference buffering is acceptable |
Compared with ADS1000IRUGR and MAX1186ETL+, the ADC10321CIVT/NOPB uniquely balances 20 MSPS throughput, 10-bit no-missing-codes assurance, and dual-voltage I/O with precision reference force/sense - making it optimal for industrial imaging systems requiring deterministic timing, thermal stability, and mixed-voltage interfacing.
Availability
ADC10321CIVT/NOPB is available at Aetrix Electronics and suitable for digital video acquisition, CCD imaging systems, and medical ultrasound front-ends requiring stable component supply across extended industrial temperature ranges and multi-year production cycles.
Supply support for ADC10321CIVT/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, delivering analog and embedded processing solutions for industrial, automotive, and communications markets since 1930.
The ADC10321CIVT/NOPB belongs to TI's high-speed data converter product line, engineered specifically for real-time digitization in video, imaging, and instrumentation applications where resolution, speed, and power efficiency must coexist without compromise.
FAQ
What is the maximum clock frequency supported by the ADC10321CIVT/NOPB?
The ADC10321CIVT/NOPB supports a maximum clock frequency of 25 MSPS, though its guaranteed performance specifications (including ENOB and SNR) are validated at 20 MSPS. Operation above 20 MSPS may reduce dynamic performance, particularly at higher input frequencies, and requires careful attention to clock jitter and layout parasitics to maintain aperture accuracy.
Does the ADC10321CIVT/NOPB require an external reference voltage source?
Yes - the ADC10321CIVT/NOPB does not include an internal reference. It relies on external force/sense architecture: VREF+F and VREF−F accept buffered reference voltages, while VREF+S and VREF−S provide feedback nodes for precision regulation. This design enables high-accuracy biasing using op-amps like the LMC6082, as documented in TI's SNAS028F datasheet.
Can the ADC10321CIVT/NOPB operate with a 3.3V digital I/O supply while using a 5V analog supply?
Yes - the ADC10321CIVT/NOPB explicitly supports split-supply operation: VA and VD can be +5V for analog/digital core functions, while VD I/O pins (Pins 12, 21) accept +2.7V to +5.5V, enabling direct 3.3V logic interfacing without level shifters. This is confirmed in the Operating Ratings table and DC Electrical Characteristics section of the datasheet.
What is the meaning of "no missing codes" for the ADC10321CIVT/NOPB?
"No missing codes" means the ADC10321CIVT/NOPB guarantees monotonicity across its entire 10-bit transfer function - every integer value from 0 to 1023 appears at least once over the full input range and operating temperature (−40°C to +85°C). This is verified by DNL ≤ ±0.85 LSB (max) and is critical for applications like medical imaging and document scanning where code gaps cause visible artifacts.
How does the power-down mode affect output behavior in the ADC10321CIVT/NOPB?
When the PD pin is driven high, the ADC10321CIVT/NOPB enters low-power standby mode (<4 mW typical), halting conversion and placing all digital output pins (D0–D9) into high-impedance state - regardless of OE pin status. This preserves bus integrity in multi-device systems and eliminates contention during idle periods, as specified in the Pin Descriptions and DC Electrical Characteristics sections.
ADC10321CIVT/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 32-LQFP
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 20M
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- Two-Step
- Reference Type:
- External
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 32-TQFP (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC10321CIVT/NOPB FAQ
1.How can I place an order for ADC10321CIVT/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC10321CIVT/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 ADC10321CIVT/NOPB reliable?
The price and inventory of ADC10321CIVT/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC10321CIVT/NOPB is usually 5 days.
3.What payment methods are accepted for ADC10321CIVT/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC10321CIVT/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC10321CIVT/NOPB?
ADC10321CIVT/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC10321CIVT/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 ADC10321CIVT/NOPB?
For technical support, including ADC10321CIVT/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC10321CIVT/NOPB requirements.
6.How does Aetrix verify that ADC10321CIVT/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC10321CIVT/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 ADC10321CIVT/NOPB meets industry standards.
7.What is the process for return or replacement of ADC10321CIVT/NOPB?
All ADC10321CIVT/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC10321CIVT/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 ADC10321CIVT/NOPB part is unused and in its original packaging.
Return procedure for ADC10321CIVT/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADC10321CIVT/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…
