THS1041IPWRG4 - 10-Bit 40 MSPS Low-Power ADC | TI 28-TSSOP
Référence : THS1041IPWRG4 ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $8.42 | $8,42 |
| 10 | $7.55 | $75,50 |
| 100 | $6.34 | $634,00 |
| 500 | $5.12 | $2 560,00 |
| 1 000 | $4.27 | $4 270,00 |
THS1041IPWRG4 Présentation
An ADC is a mixed-signal integrated circuit that converts real-world analog signals into digital codes for downstream processing. The THS1041 sits in the converter hierarchy as: ADC -> data converter -> data acquisition IC -> mixed-signal/analog front-end. It uses a pipelined architecture with a sample-and-hold front-end, enabling high throughput while keeping power consumption low (~55.5 mW at 3 V) for portable or thermally constrained designs.
Key features include single 3 V supply operation, configurable analog input functions (single-ended, single-ended with analog clamp, single-ended with programmable digital clamp, differential), a built-in PGA with adjustable gain, parallel CMOS-compatible data interface, low-power standby mode, and an operating temperature range of -40 C to +85 C. The part supports one analog input channel sampled at up to 40 MSPS.
The architecture combines S/H + PGA + ADC blocks in a 1:1 ratio, with the internal 1.2 V precision bandgap reference setting the full-scale range and offering a buffered reference output for designs needing an external reference. This integration reduces external component count and PCB area compared to discrete ADC + external PGA implementations.
Typical applications include portable imaging devices, digital video, set-top box digitizers, industrial inspection cameras, low-cost digital oscilloscopes, and general-purpose data-acquisition front ends. The integrated clamp and PGA simplify interface to direct-coupled video or sensor outputs.
When designing with this part, note that it is now obsolete/NRND at TI; verify last-time-buy windows and lifecycle status before committing new designs. Use the standby pin for power cycling in battery systems, and respect the analog/digital supply decoupling guidance in the datasheet.
This page synthesizes distributor pricing, lifecycle observations, and engineering notes from the TI datasheet into a single source intended to support sourcing, replacement analysis, and front-end design decisions for this ADC.
Alternatives de remplacement direct pour THS1041IPWRG4 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec THS1041IPWRG4 (même facteur de forme et même empreinte) — différant par Package.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
THS1041CPWRG4
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
THS1041CPWR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
THS1041IPW
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
THS1040IPWR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
THS1040CPWRG4
✅ Remplacement direct✓ En stock
$4.1 / unité
Voir la fiche technique →THS1041IPWRG4 Valeurs maximales et caractéristiques électriques
| Résolution | 10 bit |
| Fréquence d'échantillonnage | 40 MSPS |
| Number of Inputs | 1 |
| Input Type | Differential, Single-Ended |
| Data Interface | Parallel |
| Configuration | S/H-PGA-ADC |
| Architecture | Pipelined |
| Ratio S/H:ADC | 1:1 |
| Number of A/D Converters | 1 |
| Analog Supply Voltage | 3 V |
| Digital Supply Voltage | 3 V |
| Power Consumption | 55.5 mW (typical at 3 V) |
| Input Functions | Single-ended / Clamped / Differential |
| Integrated PGA | Yes (programmable gain) |
| Internal Reference | 1.2 V precision bandgap (buffered output) |
| Température de fonctionnement | -40 C to +85 C |
| Boîtier | 28-TSSOP (PW), 4.40 mm body width |
| Type de montage | Surface Mount |
| Lead-Free / RoHS | Lead-Free finish (G4 suffix), RoHS compliant |
Configuration des broches de THS1041IPWRG4
| Broche 1 | AVDD — Analog supply voltage (3 V) |
| Broche 2 | AIN — Analog input |
| Broche 3 | AIN_COM — Analog input common / clamp reference |
| Broche 4 | CLAMP — Analog clamp input |
| Broche 5 | REFT — Reference top decoupling |
| Broche 6 | REFB — Reference bottom decoupling |
| Broche 7 | REFOUT — Buffered internal 1.2 V reference output |
| Broche 8 | AGND — Analog ground |
| Broche 9 | DVDD — Digital supply voltage (3 V) |
| Broche 10 | DGND — Digital ground |
| Broche 11 | CLK — External clock input |
| Broche 12 | STBY — Standby mode control (active high) |
| Broche 13 | D0 — Parallel data output bit 0 (LSB) |
| Broche 14 | D1 — Parallel data output bit 1 |
| Broche 15 | D2 — Parallel data output bit 2 |
| Broche 16 | D3 — Parallel data output bit 3 |
| Broche 17 | D4 — Parallel data output bit 4 |
| Broche 18 | D5 — Parallel data output bit 5 |
| Broche 19 | D6 — Parallel data output bit 6 |
| Broche 20 | D7 — Parallel data output bit 7 |
| Broche 21 | D8 — Parallel data output bit 8 |
| Broche 22 | D9 — Parallel data output bit 9 (MSB) |
| Broche 23 | OTR — Out-of-range indicator |
| Broche 24 | PGA0 — PGA gain setting input 0 |
| Broche 25 | PGA1 — PGA gain setting input 1 |
| Broche 26 | MODE — Input mode select (SE / clamp / differential) |
| Broche 27 | AVDD — Analog supply (duplicate pin for low inductance) |
| Broche 28 | DVDD — Digital supply (duplicate pin for low inductance) |
Applications typiques
THS1041IPWRG4 convient pour 6 applications: Portable Imaging Digitizer, Set-Top Box Video Capture, Low-Cost Digital Oscilloscope Front End, Industrial Inspection Camera Interface, General-Purpose Data Acquisition Front End, Ultrasound / Medical Imaging Signal Path.
Portable Imaging Digitizer
The THS1041IPWRG4 suits portable imaging digitizers that need 10-bit pixel resolution at video frame rates up to 40 MSPS. Its integrated PGA amplifies small CCD/CIS sensor outputs directly into the ADC's full-scale range, while the on-chip analog clamp restores DC level for AC-coupled video sources - eliminating an external op-amp and clamp diode. At 55.5 mW typical power from 3 V, it fits battery-powered handheld camera designs without active cooling. Pin-compatible migration to the THS1040 family is straightforward if higher sample rates become necessary.
Recommandé
Set-Top Box Video Capture
In set-top box and digital-TV downstream designs, the THS1041IPWRG4 digitizes composite or component video streams at up to 40 MSPS with 10-bit resolution - sufficient for standard-definition MPEG-2 capture and modest oversampling of EDTV signals. The configurable single-ended input with programmable digital clamp simplifies sync-tip clamping for composite video. The 28-TSSOP footprint integrates easily onto video capture daughter cards alongside an MPEG decoder. Industrial grade temperature rating supports set-top box internal thermal envelopes.
Recommandé
Low-Cost Digital Oscilloscope Front End
The THS1041IPWRG4 serves as a cost-effective single-channel digitizer for entry-level digital oscilloscopes and bench DMMs sampling at 40 MSPS. Its integrated PGA with programmable gain replaces an external attenuator/amplifier stage, while the differential input mode supports floating measurements with proper biasing. The 1.2 V internal reference is buffered for use by adjacent circuitry. Designers can stack multiple THS1041 channels for simultaneous multi-channel acquisition if the 28-TSSOP footprint is acceptable on each acquisition card.
Recommandé
Industrial Inspection Camera Interface
The THS1041IPWRG4 interfaces to line-scan or area-scan industrial cameras in machine-vision inspection systems. Its 10-bit resolution captures grayscale intensity with adequate dynamic range for defect detection on assembly lines, and the 40 MSPS sample rate handles standard VGA-rate sensor outputs. The -40 C to +85 C industrial temperature rating supports factory-floor enclosures without derating. The integrated clamp accommodates AC-coupled sensor outputs directly, minimizing analog front-end complexity on the vision processor card.
Recommandé
General-Purpose Data Acquisition Front End
The THS1041IPWRG4 is a compact ADC for general-purpose data-acquisition boards measuring analog signals from transducers, sensors, or process-control outputs. Single 3 V supply operation simplifies power-tree design, while the parallel data interface allows direct connection to FPGAs or microcontrollers without a serial-deserializer stage. The integrated PGA adapts low-amplitude sensor outputs (e.g., thermocouples after pre-amplification) to the ADC's input range. The 28-TSSOP package is friendly to 4-layer mixed-signal PCBs with proper grounding.
Recommandé
Ultrasound / Medical Imaging Signal Path
In low-end ultrasound or medical imaging front ends, the THS1041IPWRG4 digitizes pre-amplified transducer return signals at 40 MSPS with 10-bit resolution. The integrated PGA gain stage is sized for typical TGC (time-gain-compensation) outputs, and the differential input mode supports pseudo-differential transducer interfaces for common-mode rejection. Industrial temperature rating supports medical equipment enclosures. Designers should verify EMI/EMC compliance of the chosen 28-TSSOP layout against medical device standards during qualification.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour THS1041IPWRG4 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | THS1041CPWRG4 | THS1041CPWR | THS1041IPW | THS1040IPWR | THS1040CPWRG4 |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 28-TSSOP (PW) | 28-TSSOP (PW) - same | 28-TSSOP (PW) - same | 28-TSSOP (PW) - same | 28-TSSOP (PW) - same | 28-TSSOP (PW) - same |
| Resolution | 10 bit | 10 bit | 10 bit | 10 bit | 10 bit | 10 bit |
| Sampling Rate | 40 MSPS | 40 MSPS | 40 MSPS | 40 MSPS | Higher than 40 MSPS (THS1040 family) | Higher than 40 MSPS (THS1040 family) |
| Temperature Grade | Industrial (-40 C to +85 C) | Commercial (0 C to +70 C) | Commercial (0 C to +70 C) | Industrial (-40 C to +85 C) | Industrial (-40 C to +85 C) | Commercial (0 C to +70 C) |
| Lead Finish | Lead-free (G4) | Lead-free (G4) | Standard (non-G4) | Standard (non-G4) | Standard (non-G4) | Lead-free (G4) |
| Integrated PGA | Yes | Yes | Yes | Yes | Yes | Yes |
| Supply Voltage | 3 V | 3 V | 3 V | 3 V | 3 V | 3 V |
| Pin Count | 28 | 28 | 28 | 28 | 28 | 28 |
Principaux différenciateurs
- Industrial temperature range with lead-free finish (vs THS1041CPWRG4)
- Drop-in upgrade path to higher-speed family (vs THS1040IPWR)
- Integrated PGA and analog clamp reduce external BOM (vs Discrete ADC + external PGA (e.g., MAX197 + AD602))
Notes de conception
Estimated: at 3.0 V analog and digital supply and 40 MSPS continuous sampling, the THS1041IPWRG4 draws roughly 18.5 mA (55.5 mW total). Decouple AVDD and DVDD with a 0.1 uF ceramic capacitor placed within 3 mm of each supply pin, plus a 10 uF bulk capacitor on each rail. The 28-TSSOP has duplicate supply pins (1/27 for AVDD, 9/28 for DVDD) - tie both to the same rail via independent vias to minimize supply inductance.
Use a four-layer PCB with a continuous ground plane beneath the ADC. Keep analog input traces short and guarded with ground on both sides. Separate the analog (AVDD/AGND) and digital (DVDD/DGND) ground returns and join them at a single point near the ADC's AGND pin. Place the REFT and REFB decoupling capacitors (pins 5 and 6) directly at the pins with short traces to the adjacent ground via to limit reference noise injection into the conversion result.
Route the external CLK input (pin 11) as a 50-ohm controlled-impedance trace, terminated at the source. Keep the clock trace away from the analog input and reference pins to avoid coupling. The parallel data outputs D0-D9 should be impedance-matched and length-matched within ~2 mm if they fan out to an FPGA at 40 MHz, to limit skew on the captured byte. Add 22 ohm series damping resistors near the ADC outputs if the bus is long or heavily loaded.
Do not leave STBY (pin 12) floating - tie it to DGND through a 10 kohm resistor for normal operation, or drive it high to enter standby mode. Selecting the wrong MODE setting (pin 26) leaves the analog clamp inactive and may damage the ADC on AC-coupled video inputs that swing beyond the supply rails. When the part is obsolete, double-check the active silicon revision against the latest TI datasheet before committing to a last-time-buy order, since later revisions occasionally shift reference behavior.
Informations de conformité
G4 suffix indicates lead-free (Pb-free) finish and RoHS compliance per TI product marking. AEC-Q100 not applicable - this is a converter IC, not an automotive-qualified part. Halogen-free status not explicitly listed in the verified web data; halogen-free marking, if present, is on the device label.
