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Texas Instruments ADC1175-50CIJMX
- Part No.:
- ADC1175-50CIJMX
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
ADC1175-50CIJMX.pdf
- Description:
- IC ADC 8BIT TWO-STEP 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,502
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Product details
Overview
ADC1175-50CIJMX from Texas Instruments is an 8-bit, 50 MSPS analog-to-digital converter with internal track-and-hold, single +5V operation, 125 mW typical power consumption, and 6.8 effective bits at 25 MHz input frequency. It digitizes video and imaging signals in portable CCD systems requiring low-power, high-speed sampling with industry-standard pinout.
For engineers reviewing the ADC1175-50CIJMX datasheet, ADC1175-50CIJMX pinout, ADC1175-50CIJMX application, or ADC1175-50CIJMX equivalent, key selection criteria include ENOB @ 25 MHz, THD of −54 dB (typ), DNL of 0.7 LSB (typ), power-down mode (<5 mW), and dual 24-pin TSSOP/WQFN package compatibility.
Technical Context
The ADC1175-50CIJMX employs a flash-based architecture with integrated track-and-hold, enabling 50 MSPS sampling at 8-bit resolution while maintaining 6.8 ENOB at 25 MHz input. Its reference ladder supports configurable VRT/VRB inputs (1.0–5.0 V and 0–4.0 V ranges) and self-bias via VRTS/VRBS pins.
It features CMOS/TTL-compatible digital I/O, pipeline latency of 2.5 clock cycles, aperture jitter of 10 ps rms, and output delay of 14 ns (typ). The device operates across −20°C to +75°C with separate analog/digital supplies (AVDD/DVDD) and requires independent bypassing per supply rail.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8 bits - defines quantization step size and full-scale code count (0x00 to 0xFF). |
| Max Sampling Rate | 50 MSPS (min) - sets maximum real-time signal bandwidth capture capability without aliasing. |
| ENOB @ fIN = 25 MHz | 6.8 bits (typ) - indicates actual usable dynamic resolution under video-frequency conditions. |
| THD | −54 dB (typ) - quantifies harmonic distortion level for clean signal reconstruction in imaging paths. |
| DNL | 0.7 LSB (typ) - ensures monotonicity and absence of missing codes during ramp conversion. |
| Power Consumption | 125 mW (typ), <5 mW in power-down - enables battery-powered operation and thermal management in compact enclosures. |
| Input Capacitance | 7 pF (typ, CLK high) - determines required drive strength and settling time for front-end amplifiers. |
| Aperture Jitter | 10 ps rms - limits SNR degradation at high input frequencies due to sampling uncertainty. |
Pinout & Package
ADC1175-50CIJMX is available in 24-pin TSSOP (PW package) and 24-pin WQFN (NHW0024B package), both rated for −20°C to +75°C operation. Pin numbering differs between packages; TSSOP pin 1 is PD, WQFN pin 1 is AVSS (per TI SNAS027G).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (TSSOP), 22 (WQFN) | PD | Power-down control input - high disables conversion and reduces current to <5 mW; outputs enter high-Z state. |
| 3–10 (TSSOP), 1–8 (WQFN) | D0–D7 | CMOS/TTL digital outputs - straight binary coding, MSB = D7, LSB = D0, valid after rising CLK edge. |
| 11, 13, 14 (TSSOP), 9, 11, 12 (WQFN) | DVDD | +5V digital supply - must be decoupled with 10 µF + 0.1 µF capacitors; separate from AVDD. |
| 12 (TSSOP), 10 (WQFN) | CLK | Falling-edge sampling clock - initiates sample acquisition; supports 1–55 MHz range. |
| 15, 18 (TSSOP), 13, 16 (WQFN) | AVDD | +5V analog supply - requires independent bypassing; AVDD and DVDD share voltage source but not routing. |
| 19 (TSSOP), 17 (WQFN) | VIN | Analog input - conversion range defined by VRT and VRB; 7 pF input capacitance (CLK high) affects driver design. |
| 16, 17 (TSSOP), 14, 15 (WQFN) | VRT / VRTS | Reference top / bias - VRTS internally pulls up; shorting VRT to VRTS yields ~2.6V self-biased reference. |
| 22, 23 (TSSOP), 20, 21 (WQFN) | VRB / VRBS | Reference bottom / bias - VRBS internally pulls down; shorting VRB to VRBS yields ~0.6V self-biased reference. |
Key Features
| Feature | Design Value |
|---|---|
| Internal track-and-hold | Eliminates need for external S/H circuitry; enables accurate sampling of fast-rising video waveforms. |
| Single +5V operation | Reduces system power supply complexity and PCB layer count versus dual-supply ADCs. |
| Industry-standard pinout | Ensures drop-in compatibility with legacy 8-bit ADC layouts and evaluation board footprints. |
| Power-down mode | Reduces total system power by >95% during idle periods-critical for battery-operated digital still cameras. |
| Short-circuit-proof outputs | Prevents latch-up or damage when interfacing with FPGA or ASIC I/O banks under transient fault conditions. |
| Self-bias reference ladder | Enables rapid prototyping with only two external connections (VRT↔VRTS, VRB↔VRBS) for 2.6V/0.6V reference. |
Applications
| Digital Still Cameras | CCD Imaging Systems |
|---|---|
Use Scenario: Capturing high-resolution still images using interline-transfer CCD sensors with analog output. IC Role / Device Role / Timing Role: Digitizes CCD analog output at up to 50 MSPS to support 1080p frame rates with minimal motion blur. Use Value: 6.8 ENOB at 25 MHz preserves tonal gradation and color fidelity; 125 mW power enables compact thermal design. |
Use Scenario: Converting analog pixel data from scientific or industrial CCD arrays in machine vision equipment. IC Role / Device Role / Timing Role: Acts as primary digitizer in multi-channel CCD readout chains, synchronized to pixel clock. Use Value: 10 ps rms aperture jitter maintains SNR >44 dB across 20 MHz bandwidth; DNL <0.7 LSB prevents histogram artifacts. |
| Electro-Optic Sensors | Video Digitization Front-Ends |
Use Scenario: Signal conditioning in laser rangefinders or fiber-optic sensor interfaces where analog output must be sampled rapidly. IC Role / Device Role / Timing Role: Converts modulated photodiode or interferometer output into digital stream for FPGA-based demodulation. Use Value: 7 pF input capacitance simplifies op-amp driver selection (e.g., LMH6702); self-bias reference reduces component count. |
Use Scenario: Real-time digitization of composite or component video signals in broadcast or medical video recorders. IC Role / Device Role / Timing Role: Performs baseband sampling of NTSC/PAL luminance/chrominance signals at 4× or 8× subcarrier rate. Use Value: −54 dB THD minimizes color bleeding; 50 MSPS rate supports 10-bit-equivalent timing margin for 4:2:2 YUV encoding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit, 50 MSPS ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS820U | 8-bit, 20 MSPS max; no internal reference; requires external REF and clock buffer. | Limited to lower-bandwidth imaging; lacks power-down mode and self-bias reference. | Select when cost sensitivity outweighs speed and integration requirements. |
| MAX1185EUB+ | 8-bit, 40 MSPS; ±5V dual supply; higher THD (−48 dB typ); no power-down mode. | Suitable for industrial instrumentation with bipolar inputs; incompatible with single +5V systems. | Choose only if bipolar input range and legacy ±5V infrastructure are mandatory. |
Compared with ADS820U and MAX1185EUB+, ADC1175-50CIJMX delivers higher sampling rate (50 vs. 20/40 MSPS), lower power (125 mW vs. 220+ mW), integrated reference biasing, and power-down capability-making it optimal for portable, high-speed, single-supply video digitization.
Availability
ADC1175-50CIJMX is available at Aetrix Electronics and suitable for digital still cameras, CCD imaging systems, electro-optic sensors, and video digitization front-ends requiring stable component supply across extended commercial temperature range (−20°C to +75°C).
Supply support for ADC1175-50CIJMX 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 data converters for industrial, automotive, and communications markets.
ADC1175-50CIJMX belongs to TI's precision high-speed ADC product line, designed specifically for low-power, portable video and imaging applications where 8-bit resolution, 50 MSPS throughput, and single-supply operation are critical.
FAQ
What is the operating temperature range for ADC1175-50CIJMX?
The ADC1175-50CIJMX is specified for operation from −20°C to +75°C, meeting extended commercial grade requirements. This range supports deployment in portable digital cameras and industrial CCD systems exposed to ambient thermal variations without derating. The datasheet confirms performance specifications are ensured across this full range under AVDD/DVDD = +4.75 V to +5.25 V.
Does ADC1175-50CIJMX support true differential input?
No, ADC1175-50CIJMX accepts single-ended analog input at VIN referenced to VRT and VRB. It does not implement differential input pairs or internal subtraction circuitry. Input range is defined as VRB ≤ VIN ≤ VRT, with 0x00 output below VRB and 0xFF above VRT. Differential signaling must be implemented externally using a driver amplifier before VIN.
Can ADC1175-50CIJMX be used with a 3.3V digital interface?
No - ADC1175-50CIJMX requires DVDD = +4.75 V to +5.25 V and produces CMOS/TTL-compatible outputs referenced to DVDD. Its VIH minimum is 2.0 V and VIL maximum is 0.8 V, but logic high levels reach DVDD (≈5 V), making direct connection to 3.3V-only I/O banks unsafe without level translation. Interface to 3.3V FPGAs requires a bus buffer or level shifter.
How does the power-down mode affect output behavior in ADC1175-50CIJMX?
When PD is driven high, ADC1175-50CIJMX enters power-down mode consuming <5 mW, and all D0–D7 outputs transition to high-impedance TRI-STATE. Data becomes invalid within 140 ns (tEN), and the device resumes normal operation with valid output 140 ns after PD returns low. No clock activity is required during power-down.
What is the recommended reference configuration for best ENOB in ADC1175-50CIJMX?
For best ENOB (6.8 bits at 25 MHz), TI specifies VRT = +2.6 V and VRB = +0.6 V - achievable by shorting VRT to VRTS and VRB to VRBS. This self-bias configuration minimizes drift and noise. External reference drivers (e.g., LMC662) can improve linearity further but require careful layout to avoid degrading the 10 ps rms aperture jitter specification of ADC1175-50CIJMX.
ADC1175-50CIJMX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 50M
- 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-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC1175-50CIJMX FAQ
1.How can I place an order for ADC1175-50CIJMX through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC1175-50CIJMX 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 ADC1175-50CIJMX reliable?
The price and inventory of ADC1175-50CIJMX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC1175-50CIJMX is usually 5 days.
3.What payment methods are accepted for ADC1175-50CIJMX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC1175-50CIJMX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC1175-50CIJMX?
ADC1175-50CIJMX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC1175-50CIJMX 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 ADC1175-50CIJMX?
For technical support, including ADC1175-50CIJMX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC1175-50CIJMX requirements.
6.How does Aetrix verify that ADC1175-50CIJMX is sourced from the original manufacturer or authorized distributors?
All ADC1175-50CIJMX 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 ADC1175-50CIJMX meets industry standards.
7.What is the process for return or replacement of ADC1175-50CIJMX?
All ADC1175-50CIJMX units undergo pre-shipment inspection (PSI). If there is an issue with ADC1175-50CIJMX, 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 ADC1175-50CIJMX part is unused and in its original packaging.
Return procedure for ADC1175-50CIJMX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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