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Texas Instruments ADS930E/1K
- Part No.:
- ADS930E/1K
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
ADS930E/1K.pdf
- Description:
- IC ADC 8BIT PIPELINED 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,934
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Product details
Overview
ADS930E/1K from Texas Instruments is an 8-bit, 30 MSPS pipelined analog-to-digital converter (ADC) with internal reference, single-ended input range of +1.0 V to +2.0 V, 46 dB SNR at 500 kHz, ±0.4 LSB DNL, and SSOP-28 package. It serves as a high-speed data acquisition front-end in portable video capture and test instrumentation systems.
For engineers reviewing the ADS930E/1K datasheet, ADS930E/1K pinout, ADS930E/1K application, or ADS930E/1K equivalent, this page delivers verified technical context, real-world timing behavior, quantified dynamic performance limits, and validated alternative options for battery-powered imaging and communications signal chains.
Technical Context
The ADS930E/1K implements a 7-stage pipeline architecture with 2-bit per stage quantization and digital error correction to guarantee no missing codes and ±0.4 LSB differential nonlinearity. Its track-and-hold operates with 2 ns aperture delay and 7 ps rms jitter, enabling accurate sampling up to 30 MHz.
It integrates a resistor-ladder-based internal reference generating +1.25 V (REFB), +1.75 V (REFT), and derived +1.5 V common-mode voltage (CM), with dedicated bypass pins (LpBy, LnBy) and unbuffered +1VREF output. Input interface supports both single-ended (IN tied to CM) and differential modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit - delivers 256 discrete output levels for medium-speed digitization of video and telecom baseband signals. |
| Sampling Rate | 30 MSPS - supports Nyquist-limited input bandwidth up to 15 MHz; usable for undersampling applications beyond that. |
| SNR | 46 dB at 500 kHz - defines minimum detectable signal level above quantization and thermal noise floor. |
| DNL | ±0.4 LSB - ensures monotonic transfer function critical for imaging linearity and histogram fidelity. |
| Analog Input Range | +1.0 V to +2.0 V (single-ended) - requires external biasing to +1.5 V common-mode; eliminates need for external reference. |
| Power Dissipation | 66 mW at +3 V - enables integration into thermally constrained portable equipment without active cooling. |
| Aperture Jitter | 7 ps rms - limits SNR degradation at high input frequencies; critical for >10 MHz signal fidelity. |
Pinout & Package
ADS930E/1K is housed in a 28-pin SSOP (DB) package with 0.64 mm pitch, moisture sensitivity level 1, and RoHS-compliant NiPdAu finish. Pin layout supports analog/digital separation via dedicated LVDD and multiple +VS/GND pairs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 18, 28 | +VS | Analog supply input (2.7–5.25 V); three pins reduce IR drop and improve PSRR. |
| 2 | LVDD | Dedicated logic driver supply (2.7–5.25 V); sets VOH/VOL thresholds independently of analog rail. |
| 15 | CLK | Convert clock input; accepts TTL/HCT/CMOS levels; 33 ns min period supports 30 MSPS operation. |
| 16 | OE | Output enable (active low); places 8-bit data bus in high-impedance state for shared-bus interfacing. |
| 17 | Pwrdn | Power-down control (active high); reduces supply current by ~70% and disables conversion. |
| 23 | 1VREF | Unbuffered +1.0 V reference output; intended for external circuit biasing only under light load (<100 µA). |
| 26 | CM | Common-mode voltage output (+1.5 V typical); used to bias single-ended inputs or level-shift drivers. |
| 27 | +IN | Analog input (single-ended); full-scale range +1.0 V to +2.0 V when IN is tied to CM. |
| 24 | IN | Complementary analog input (differential mode); tied to CM for single-ended operation. |
| 5–12 | Bit 8 (LSB) to Bit 1 (MSB) | 8-bit straight offset binary output; data valid after 5-clock-cycle latency; compatible with TTL/CMOS logic. |
Key Features
| Feature | Design Value |
|---|---|
| Digital error correction | Guarantees no missing codes and ±0.4 LSB DNL across temperature, essential for medical imaging and scanner linearity. |
| Internal reference ladder | Provides stable +1.25 V, +1.75 V, and +1.5 V CM outputs; eliminates external reference IC and reduces BOM count. |
| 5-clock-cycle data latency | Enables deterministic timing alignment in synchronous FPGA or DSP interfaces without variable pipeline stalls. |
| Independent LVDD supply | Allows 3 V logic interfacing while analog core runs at 5 V; isolates digital switching noise from analog performance. |
| Power-down mode | Reduces dissipation to 10 mW at +3 V; supports rapid wake-up (18 ns disable time) for burst-mode acquisition. |
Applications
| Portable Camcorders | Battery-Powered Test Equipment |
|---|---|
|
Use Scenario: Digitizing composite video or Y/C signals in handheld camcorders operating from single-cell Li-ion batteries. IC Role / Device Role / Timing Role: ADC front-end capturing baseband luminance/chrominance at 30 MSPS with <2 ns aperture delay to preserve edge integrity. Use Value: 46 dB SNR and ±0.4 LSB DNL maintain color fidelity and reduce false contouring in compressed video streams. |
Use Scenario: Portable oscilloscope or spectrum analyzer modules requiring low-power, medium-resolution waveform capture. IC Role / Device Role / Timing Role: High-speed sampling engine with deterministic 5-cycle latency for real-time FFT triggering and buffer management. Use Value: 66 mW power at +3 V extends battery life; internal reference eliminates calibration drift during field use. |
| Computer Scanners | Communications Baseband Processing |
|
Use Scenario: Flatbed or document scanners digitizing reflected light intensity from CCD or CIS sensors. IC Role / Device Role / Timing Role: Precision digitizer converting analog pixel outputs with monotonic response to avoid banding artifacts. Use Value: Guaranteed no missing codes and <0.5 LSB DNL ensure uniform grayscale reproduction across A4 scan area. |
Use Scenario: IF sampling in software-defined radio receivers or broadband modems handling QAM/OFDM waveforms. IC Role / Device Role / Timing Role: Undersampling ADC capturing 12–20 MHz IF bands with 350 MHz small-signal bandwidth. Use Value: 51 dB SFDR at 500 kHz and 46 dB at 12 MHz support clean demodulation of multi-carrier signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit, 30 MSPS ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9203ARUZ | 3 V-only supply; 40 MSPS max; 48 dB SNR; TSSOP-28; no internal reference - requires external REF. | Better SNR and speed, but higher system complexity due to external reference and tighter layout constraints. | Choose AD9203ARUZ when higher dynamic range and sampling rate justify added board space and BOM cost. |
| MAX1186ETL+ | 2.7–3.6 V supply; 40 MSPS; 47 dB SNR; 32-pin QFN; integrated reference; SPI-configurable power modes. | Smaller footprint and programmable features, but lacks SSOP compatibility and has different pinout. | Choose MAX1186ETL+ for space-constrained designs needing flexible power sequencing and modern packaging. |
Compared with ADS930E/1K, AD9203ARUZ offers higher speed and SNR but demands external reference design effort, while MAX1186ETL+ provides QFN integration and configurability at the cost of pinout incompatibility and vendor-specific toolchain dependencies.
Availability
ADS930E/1K is available at Aetrix Electronics and suitable for portable camcorders, battery-powered test equipment, and computer scanners requiring stable component supply, long-term lifecycle support, and tape-and-reel delivery for SMT assembly.
Supply support for ADS930E/1K 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.
The ADS930E/1K belongs to TI's precision high-speed ADC product line, designed specifically for portable, low-power, medium-resolution digitization in imaging and instrumentation where internal reference integration and SSOP manufacturability are critical.
FAQ
What is the absolute maximum analog input voltage for the ADS930E/1K?
The absolute maximum analog input voltage for the ADS930E/1K is +VS + 0.3 V, where VS is the analog supply voltage. For a +3 V supply, this means +3.3 V maximum. Exceeding this risks permanent damage. The specified full-scale single-ended input range remains +1.0 V to +2.0 V, and operation outside this range degrades linearity and SNR even if within absolute limits. Always limit input transients with clamping diodes or series resistance.
Does the ADS930E/1K require external decoupling capacitors, and where should they be placed?
Yes, the ADS930E/1K requires 0.1 µF ceramic decoupling capacitors on every +VS pin (pins 1, 18, 28) and LVDD (pin 2), placed as close as possible-within 2 mm-to each respective pin. This minimizes high-frequency supply impedance and suppresses pipeline-induced transients. The datasheet Figure 8 shows this layout; omitting or misplacing these caps causes increased noise, reduced SFDR, and potential metastability in output data.
How does the power-down mode affect data validity and timing in the ADS930E/1K?
When Pwrdn is asserted high, the ADS930E/1K enters power-down mode after 133 ns, disabling internal clocks and setting outputs to high-impedance. Upon exit (Pwrdn low), the first five clock cycles produce invalid data due to pipeline reset latency. Valid data resumes on the sixth cycle. This 5-cycle latency is identical to normal operation, ensuring consistent timing margins for downstream logic interfacing with the ADS930E/1K.
Can the ADS930E/1K operate with a 50% duty cycle clock, and what is the tolerance?
Yes, the ADS930E/1K is designed for a 50% duty cycle clock but tolerates ±10% variation (i.e., 40–60% duty cycle) without performance degradation. However, for optimal SNR-especially at high input frequencies-TI recommends fast rise/fall times ≤2 ns and minimal jitter. Duty cycle deviation beyond ±10% may increase aperture uncertainty and reduce effective resolution in the ADS930E/1K.
Is the +1VREF pin (pin 23) buffered, and what load can it drive?
No, the +1VREF pin (pin 23) on the ADS930E/1K is unbuffered and must not drive loads exceeding 100 µA. It is derived from the internal resistor ladder without amplification. Connecting it directly to an op-amp input or logic gate may cause voltage droop and reference instability. TI recommends leaving pin 23 unconnected unless driving ultra-high-impedance nodes; for active biasing, use the buffered CM (pin 26) or external reference instead.
ADS930E/1K Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SpeedPlus™
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 30M
- Number of Inputs:
- 1
- Input Type:
- Differential, Single Ended
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 2.7V ~ 5.25V
- Voltage - Supply, Digital:
- 2.7V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 28-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS930E/1K FAQ
1.How can I place an order for ADS930E/1K through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS930E/1K 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 ADS930E/1K reliable?
The price and inventory of ADS930E/1K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS930E/1K is usually 5 days.
3.What payment methods are accepted for ADS930E/1K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS930E/1K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS930E/1K?
ADS930E/1K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS930E/1K 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 ADS930E/1K?
For technical support, including ADS930E/1K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS930E/1K requirements.
6.How does Aetrix verify that ADS930E/1K is sourced from the original manufacturer or authorized distributors?
All ADS930E/1K 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 ADS930E/1K meets industry standards.
7.What is the process for return or replacement of ADS930E/1K?
All ADS930E/1K units undergo pre-shipment inspection (PSI). If there is an issue with ADS930E/1K, 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 ADS930E/1K part is unused and in its original packaging.
Return procedure for ADS930E/1K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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