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Texas Instruments ADS804E/1K
- Part No.:
- ADS804E/1K
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
ADS804E/1K.pdf
- Description:
- IC ADC 12BIT PIPELINED 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,405
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Product details
Overview
ADS804E/1K from Texas Instruments is a 12-bit, 10-MSPS pipelined analog-to-digital converter with 80 dB SFDR at Nyquist, 69 dB SNR, ±0.3 LSB DLE, and flexible 2Vp-p or 5Vp-p input range - used in IF/baseband digitization, CCD imaging, and test instrumentation systems requiring high dynamic range and low jitter.
For engineers reviewing the ADS804E/1K datasheet, ADS804E/1K pinout, ADS804E/1K application, or ADS804E/1K equivalent, this page delivers verified technical context, SSOP-28 package mapping, real-world timing and noise performance data, and two validated alternative ADCs for imaging and communications signal chains.
Technical Context
The ADS804E/1K employs a high-bandwidth track-and-hold with 270 MHz –3dB input bandwidth and 4 psrms aperture jitter to preserve SNR up to Nyquist. Its digital error correction logic ensures ±0.3 LSB differential linearity and no missing codes across –40°C to +85°C.
It integrates a programmable internal reference (1V or 2.5V), over-range indicator (OVR), and 3-state CMOS/TTL-compatible outputs driven by separate VDRV supply - enabling direct interfacing to 3V or 5V logic while isolating digital noise from analog sections.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 4096 discrete output levels for precision waveform capture |
| Sampling Rate | 10 MSPS - supports real-time digitization of signals up to 5 MHz Nyquist bandwidth |
| SFDR | 80 dBFS at 4.8 MHz - suppresses spurious tones critical for spectral purity in comms and radar |
| SNR | 69 dBFS at 4.8 MHz - enables >11.1 ENOB for high-fidelity signal reconstruction |
| Differential Linearity Error | ±0.3 LSB - ensures monotonicity and minimal code-width variation in imaging pixel data |
| Input Range Options | Configurable 2Vp-p (best SFDR) or 5Vp-p (0.09 LSBrms noise) - adapts to front-end gain and noise trade-offs |
| Power Dissipation | 180 mW at 10 MSPS - balances speed and thermal load in compact instrumentation PCBs |
Pinout & Package
ADS804E/1K is housed in a 28-pin SSOP (DB) package with exposed pad not electrically connected. Pin spacing is 0.65 mm; body dimensions are 10.2 mm × 5.3 mm × 1.95 mm. Thermal resistance θJA = 50°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OVR (Pin 1) | Over-range flag output | Active-HI when input exceeds full-scale range - enables automatic gain control in front-end amplifiers |
| B1–B12 (Pins 2–13) | Data bits D11–D0 | MSB-first straight offset binary output; 3-state controlled by OE - reduces bus contention in multi-ADC systems |
| CLK (Pin 14) | Convert clock input | Rising-edge triggered; 100 ns period (10 MHz); requires <4 psrms jitter for rated SNR |
| OE (Pin 15) | Output enable | Low = enabled; internal 50 kΩ pull-down - allows shared data bus without external logic |
| +VS (Pins 16, 27, 28) | Analog supply | +4.7 V to +5.3 V; powers analog core, reference, and T/H - must be decoupled with 0.1 µF + 2.2 µF |
| IN / IN (Pins 23, 25) | Differential analog inputs | Accept single-ended or differential drive; common-mode voltage set via CM pin or REFT/REFB divider |
| SEL / VREF / REFT / REFB / CM (Pins 18–22) | Reference configuration | Pin-strapped to select 1V/2.5V internal ref, input range (2Vp-p/5Vp-p), or external reference mode |
| VDRV (Pin 28) | Digital output driver supply | Independent +3 V or +5 V supply - sets output logic levels without affecting analog section |
Key Features
| Feature | Design Value |
|---|---|
| Digital error correction | Guarantees ±0.3 LSB DLE and no missing codes - essential for medical/industrial imaging linearity |
| Programmable input range | 2Vp-p (optimal SFDR) or 5Vp-p (0.09 LSBrms noise) - selectable via SEL/VREF strap without external components |
| Over-range indicator (OVR) | Real-time digital flag synchronized to pipeline latency - enables closed-loop gain adjustment in CCD scanners |
| Separate VDRV supply | Isolates digital I/O noise from analog core - permits mixed-voltage system integration (e.g., +5V analog / +3V FPGA interface) |
| Internal reference options | 1V or 2.5V bandgap reference with ±35 mV tolerance - eliminates need for external precision reference in cost-sensitive test gear |
Applications
| IF and Baseband Digitization | CCD Imaging |
|---|---|
Use Scenario: Digitizing intermediate frequency signals in software-defined radio receivers operating at 4.8 MHz. IC Role / Device Role / Timing Role: High-speed ADC capturing complex baseband I/Q waveforms with minimal harmonic distortion. Use Value: 80 dB SFDR prevents adjacent-channel interference; 69 dB SNR preserves modulation accuracy for QAM-64 constellations. |
Use Scenario: Converting analog pixel outputs from linear CCD sensors in industrial inspection cameras. IC Role / Device Role / Timing Role: Precision digitizer acquiring low-noise, high-linearity image data at 10 MSPS line rate. Use Value: ±0.3 LSB DLE ensures uniform pixel response; 0.09 LSBrms noise at 5Vp-p range maximizes dynamic range for defect detection. |
| Scanners | Test Instrumentation |
Use Scenario: High-resolution document scanning where analog sensor output must be converted with minimal code-width nonlinearity. IC Role / Device Role / Timing Role: Low-distortion ADC providing monotonic transfer function for grayscale fidelity. Use Value: No missing codes and 11-bit ENOB guarantee accurate reproduction of fine tonal gradations in A4 scans. |
Use Scenario: Embedded digitizer in portable spectrum analyzers requiring wideband signal analysis up to 5 MHz. IC Role / Device Role / Timing Role: Core ADC delivering spectrally clean samples for FFT-based frequency-domain processing. Use Value: 270 MHz track-and-hold bandwidth supports undersampling of RF signals; low aperture jitter maintains measurement repeatability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, high-dynamic-range ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS803E/1K | 5 MSPS max sample rate; identical SSOP-28 pinout and register map - lower power (120 mW) but reduced Nyquist bandwidth | Better suited for DC-coupled sensor interfaces below 2.5 MHz; insufficient for 4.8 MHz IF sampling | Select when system clock budget or thermal constraints limit to ≤5 MSPS operation |
| ADS805E/1K | 20 MSPS max sample rate; same architecture and pinout - higher power (240 mW) and tighter layout requirements for clock integrity | Required for >10 MHz IF bands or wideband transient capture; demands sub-2 ps clock jitter | Choose when future-proofing for higher-frequency signal chains or multi-carrier systems |
Compared with ADS804E/1K, ADS803E/1K trades speed for lower power and thermal footprint in sub-5 MHz applications, while ADS805E/1K extends bandwidth at the cost of increased power and stricter clock design - all three share identical reference, OVR, and digital interface behavior for seamless migration.
Availability
ADS804E/1K is available at Aetrix Electronics and suitable for IF digitization, CCD imaging, and test instrumentation requiring stable component supply, long-term production continuity, and RoHS-compliant SSOP packaging.
Supply support for ADS804E/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 - with over 40 years of ADC innovation and broad industrial qualification.
The ADS804E/1K belongs to TI's high-speed pipeline ADC product line, designed specifically for demanding communications, medical imaging, and automated test equipment where dynamic range, linearity, and low-latency conversion are critical.
FAQ
What is the maximum sampling rate supported by the ADS804E/1K?
The ADS804E/1K supports a maximum sampling rate of 10 million samples per second (10 MSPS), as confirmed in its electrical characteristics table under "Conversion Characteristics." This rate enables digitization of input signals up to 5 MHz (Nyquist frequency) while maintaining specified SFDR and SNR performance. Operation above 10 MSPS is not guaranteed and may degrade linearity or introduce missing codes.
Does the ADS804E/1K require an external reference voltage?
No, the ADS804E/1K includes an integrated bandgap reference that can be configured for either +1 V or +2.5 V output via pin strapping on SEL and VREF. External reference operation is optional and enabled by connecting SEL to +VS - allowing use of higher-accuracy references like REF1004 when DC precision is critical in test instrumentation designs using ADS804E/1K.
How does the over-range indicator (OVR) pin function in the ADS804E/1K?
The OVR pin on the ADS804E/1K is a digital output that goes HIGH whenever the analog input voltage exceeds the selected full-scale range - either below REFB or above REFT. It updates synchronously with the pipeline latency (6 clock cycles) and remains asserted until the next valid conversion completes. This signal is used in CCD scanners and IF receivers to trigger automatic gain control or alert firmware of saturation events in real time.
What package type and lead finish does the ADS804E/1K use?
The ADS804E/1K is supplied in a 28-pin SSOP (DB) package with NIPDAU lead finish, moisture sensitivity level (MSL) rating of Level-2 (260°C peak reflow, 1-year floor life), and RoHS compliance. The package marking is "ADS804E", and it ships in tape-and-reel format with 1000 units per reel - optimized for automated SMT assembly in high-reliability industrial PCBs.
Can the ADS804E/1K interface directly with 3V logic systems?
Yes, the ADS804E/1K supports direct 3V logic interfacing via its dedicated VDRV pin (Pin 28), which powers the digital output drivers independently from the +5V analog supply. When VDRV is set to +3V, the outputs meet TTL/CMOS thresholds for 3V systems - eliminating level shifters and reducing board area in mixed-signal FPGA or microcontroller-based designs using ADS804E/1K.
ADS804E/1K Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 10M
- 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:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 28-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS804E/1K FAQ
1.How can I place an order for ADS804E/1K through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS804E/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 ADS804E/1K reliable?
The price and inventory of ADS804E/1K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS804E/1K is usually 5 days.
3.What payment methods are accepted for ADS804E/1K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS804E/1K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS804E/1K?
ADS804E/1K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS804E/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 ADS804E/1K?
For technical support, including ADS804E/1K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS804E/1K requirements.
6.How does Aetrix verify that ADS804E/1K is sourced from the original manufacturer or authorized distributors?
All ADS804E/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 ADS804E/1K meets industry standards.
7.What is the process for return or replacement of ADS804E/1K?
All ADS804E/1K units undergo pre-shipment inspection (PSI). If there is an issue with ADS804E/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 ADS804E/1K part is unused and in its original packaging.
Return procedure for ADS804E/1K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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