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Texas Instruments ADC1175CIMTCX/NOPB
- Part No.:
- ADC1175CIMTCX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADC1175CIMTCX/NOPB.pdf
- Description:
- IC ADC 8BIT TWO-STEP 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,699
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Product details
Overview
ADC1175CIMTCX/NOPB from Texas Instruments is an 8-bit, 20 MSPS analog-to-digital converter with internal sample-and-hold, single +5V operation, and TRI-STATE digital outputs. It delivers 7.5 effective bits (ENOB), consumes 60 mW typical power, and operates across −20°C to +75°C - enabling high-fidelity video digitization in portable imaging systems.
For engineers reviewing the ADC1175CIMTCX/NOPB datasheet, ADC1175CIMTCX/NOPB pinout, ADC1175CIMTCX/NOPB application, or ADC1175CIMTCX/NOPB equivalent, key selection considerations include its self-biasable reference ladder (VRT/VRB), aperture jitter of 30 ps rms, pipeline latency of 2.5 clock cycles, and TSSOP-24 package compatibility with industry-standard layout practices for mixed-signal video capture.
Technical Context
The ADC1175CIMTCX/NOPB employs a unique pipeline architecture optimized for video bandwidth, sampling at the falling edge of CLK and delivering data after 2.5 clock cycles plus output delay (tOD ≤ 19.5 ns). Its analog input accepts signals between VRB and VRT (1.0 V to 2.8 V range), with dynamic input capacitance (4 pF low, 11 pF high) requiring careful driver selection like LMH6702.
Reference configuration supports flexible top/bottom biasing: VRTS/VRBS pins enable self-bias to ~2.6 V / ~0.6 V, while external trimming allows precise control of VRT–VRB delta (1.0–2.8 V). The device features short-circuit-proof TRI-STATE outputs, latch-up immunity, and separate AVDD/DVDD supplies with dedicated DVDD (pin 11) for level-shifting digital interface voltage down to 2.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit straight binary output - defines quantization step size and full-scale code range (0x00 to 0xFF). |
| Max Sampling Rate | 20 MSPS minimum - guarantees real-time digitization of baseband video signals up to 10 MHz Nyquist bandwidth. |
| ENOB | 7.5 bits typical - indicates actual usable resolution under AC conditions, validated at fIN = 4.43 MHz, fCLK = 20 MHz. |
| DNL | ±0.75 LSB maximum - ensures monotonicity and absence of missing codes across full temperature range. |
| Aperture Jitter | 30 ps rms - directly limits SNR degradation at high input frequencies; enables >45 dB SINAD at 4.43 MHz. |
| Power Consumption | 60 mW typical (excluding IREF) - enables battery-powered video capture with thermal budget compatible with TSSOP-24. |
| Analog Input Bandwidth | 120 MHz - supports accurate sampling of fast-rising video edges and composite sync transitions. |
Pinout & Package
The ADC1175CIMTCX/NOPB is housed in a 24-pin TSSOP package (Package Number PW), with exposed pad not electrically connected. Pin spacing is 0.65 mm; body dimensions are 7.8 mm × 4.4 mm × 1.2 mm. Thermal resistance θJA = 92°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (19) | Analog signal input | Accepts differential or single-ended input referenced to VRB/VRT; dynamic capacitance varies with CLK state (4 pF/11 pF). |
| CLK (12) | Sampling clock input | Falling-edge triggered; supports 1–30 MHz; halting in low state reduces digital current to ~100 µA. |
| OE (1) | Output enable | Active-low control for TRI-STATE digital outputs; enables synchronous data gating in multi-device systems. |
| D0–D7 (3–10) | Digital output bus | CMOS/TTL-compatible; D0 = LSB, D7 = MSB; valid after rising CLK edge with 2.5-cycle pipeline latency. |
| VRT (17), VRB (23) | Reference ladder terminals | Define full-scale input range (VRT – VRB = 1.0–2.8 V); support self-bias via VRTS/VRBS or precision external drive. |
| AVDD (14,15,18), DVDD (11,13) | Supply rails | Separate analog/digital supplies; pin 11 (DVDD) may be set 2.5–5.0 V for level-shifted interfacing; AVDD/DVDD must share source but be independently bypassed. |
| AVSS (20,21), DVSS (2,24) | Analog/digital ground | Must be tied together near device; separation improves noise isolation but requires star grounding at package. |
Key Features
| Feature | Design Value |
|---|---|
| Internal Sample-and-Hold | Eliminates need for external S/H circuitry; enables accurate sampling of fast video transients without aperture uncertainty drift. |
| Self-Biasable Reference Ladder | VRTS/VRBS pins allow resistor-free 2.6 V / 0.6 V reference setup - reduces BOM count and layout complexity in cost-sensitive cameras. |
| TRI-STATE Outputs with OE Control | Enables direct connection to shared data buses without external buffers; simplifies timing in FPGA- or ASIC-based video pipelines. |
| Latch-Up Immunity & Short-Circuit Proof Outputs | Ensures robustness in field-deployed imaging equipment subject to ESD or transient overvoltage on digital lines. |
| Industry Standard Pinout | Compatible with legacy 8-bit ADC layouts - allows drop-in replacement in existing designs using similar sampling rate and resolution. |
Applications
| Video Digitization | Digital Still Cameras |
|---|---|
Use Scenario: Converting composite NTSC/PAL analog video signals into 8-bit digital streams for FPGA-based frame buffering and compression. IC Role / Device Role / Timing Role: Primary ADC in front-end video capture chain; samples at 17.7 MHz or 20 MHz with precise aperture timing to preserve chroma/luma integrity. Use Value: 45.7 dB SINAD at 4.43 MHz and 0.5° differential phase error ensure broadcast-grade color fidelity without post-processing correction. | Use Scenario: Digitizing CCD sensor output in compact digital still cameras where low power and small footprint are critical. IC Role / Device Role / Timing Role: High-speed analog interface between linear CCD array and image processor; operates from single +5V supply to minimize power conversion stages. Use Value: 60 mW typical power and TSSOP-24 package enable battery life extension and board space reduction versus older 28-pin SOIC alternatives. |
| Personal Computer Video Cameras | CCD Imaging Systems |
Use Scenario: USB-connected PC webcams capturing VGA-resolution video at 30 fps with minimal host CPU load. IC Role / Device Role / Timing Role: Real-time ADC feeding parallel digital interface to USB bridge IC; OE pin synchronized to frame start for clean data capture windows. Use Value: TRI-STATE outputs prevent bus contention during vertical blanking intervals; 2.5-cycle latency enables deterministic timing alignment with USB isochronous transfers. | Use Scenario: Scientific CCD imaging in spectroscopy or microscopy where linearity and low noise are essential. IC Role / Device Role / Timing Role: Precision digitizer for low-noise CCD readout; reference inputs driven externally to achieve <0.5 LSB INL across full scale. Use Value: ±0.5 LSB typical INL and 120 MHz analog bandwidth support accurate quantization of narrow spectral peaks without harmonic distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit, 20+ MSPS ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1180BCUI+ | 10-bit resolution, 40 MSPS max, +3.3V only, no internal reference bias resistors | Higher resolution and speed but requires external reference and level-shifting for +5V systems | Select when upgrading resolution/speed is prioritized over supply simplicity and pin compatibility |
| ADS7822U | 12-bit SAR architecture, 250 kSPS max, serial SPI interface, integrated reference | Orders-of-magnitude slower; suited for sensor monitoring, not video | Select only for low-speed, high-precision DC-coupled measurements - not a functional alternative for video digitization |
Compared with MAX1180BCUI+ and ADS7822U, the ADC1175CIMTCX/NOPB uniquely balances 20 MSPS throughput, +5V single-supply operation, self-biasable reference, and TRI-STATE parallel outputs - making it the only viable option for legacy-compatible, low-power video digitization in commercial temperature range applications.
Availability
ADC1175CIMTCX/NOPB is available at Aetrix Electronics and suitable for video digitization, digital still cameras, and personal computer video cameras requiring stable component supply and long-term industrial availability.
Supply support for ADC1175CIMTCX/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 high-performance analog ICs for industrial, automotive, and communications markets.
The ADC1175CIMTCX/NOPB belongs to TI's legacy high-speed data converter family designed specifically for cost-sensitive, portable video and imaging applications requiring low power, simple reference configuration, and robust mixed-signal integration.
FAQ
What is the guaranteed minimum sampling rate for ADC1175CIMTCX/NOPB?
The ADC1175CIMTCX/NOPB is specified for a minimum sampling rate of 20 MSPS across the full operating temperature range (−20°C to +75°C). While it typically functions up to 30 MSPS, only the 20 MSPS rating is ensured per datasheet limits. This makes ADC1175CIMTCX/NOPB suitable for standard-definition video digitization at 17.7 MHz (NTSC) or 20 MHz (PAL) with margin.
Does ADC1175CIMTCX/NOPB require an external reference voltage?
No - ADC1175CIMTCX/NOPB includes internal reference bias resistors and supports self-biasing by connecting VRT to VRTS and VRB to VRBS, yielding nominal reference voltages of 2.6 V and 0.6 V with +5V supply. External reference drive is optional for improved accuracy but not required for basic operation of ADC1175CIMTCX/NOPB.
Can ADC1175CIMTCX/NOPB operate from a 3.3V supply?
No - ADC1175CIMTCX/NOPB requires AVDD and DVDD between +4.75V and +5.25V. However, pin 11 (DVDD) - the digital output driver supply - can be set as low as 2.5V to interface with 3.3V or 2.5V logic, while AVDD and pin 13 DVDD remain at +5V. This dual-DVDD capability maintains ADC1175CIMTCX/NOPB functionality in mixed-voltage systems.
What is the purpose of the VRTS and VRBS pins on ADC1175CIMTCX/NOPB?
VRTS (pin 16) and VRBS (pin 22) provide internal pull-up and pull-down biasing for the reference ladder. When shorted to VRT and VRB respectively, they establish self-biased reference voltages (~2.6 V and ~0.6 V), eliminating external resistors. Leaving them unconnected allows full external control of VRT/VRB - a key flexibility feature of ADC1175CIMTCX/NOPB not found in many competing 8-bit ADCs.
Is ADC1175CIMTCX/NOPB pin-compatible with other TI ADCs like the TLC5510?
No - ADC1175CIMTCX/NOPB uses a 24-pin TSSOP package with unique pin assignments (e.g., separate DVDD pins 11/13, VRTS/VRBS bias terminals, dual ground sets). The TLC5510 uses a 28-pin SOIC package and lacks reference bias pins. While both are 8-bit, 20+ MSPS ADCs, ADC1175CIMTCX/NOPB is not a pin-compatible replacement for TLC5510 or other TI video ADCs.
ADC1175CIMTCX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 8
- 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, Internal
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- -20°C ~ 75°C
- Supplier Device Package:
- 24-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC1175CIMTCX/NOPB FAQ
1.How can I place an order for ADC1175CIMTCX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC1175CIMTCX/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 ADC1175CIMTCX/NOPB reliable?
The price and inventory of ADC1175CIMTCX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC1175CIMTCX/NOPB is usually 5 days.
3.What payment methods are accepted for ADC1175CIMTCX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC1175CIMTCX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC1175CIMTCX/NOPB?
ADC1175CIMTCX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC1175CIMTCX/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 ADC1175CIMTCX/NOPB?
For technical support, including ADC1175CIMTCX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC1175CIMTCX/NOPB requirements.
6.How does Aetrix verify that ADC1175CIMTCX/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC1175CIMTCX/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 ADC1175CIMTCX/NOPB meets industry standards.
7.What is the process for return or replacement of ADC1175CIMTCX/NOPB?
All ADC1175CIMTCX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC1175CIMTCX/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 ADC1175CIMTCX/NOPB part is unused and in its original packaging.
Return procedure for ADC1175CIMTCX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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