MAX1420CCM+D - 12-Bit 60Msps 3.3V ADC | Maxim Integrated
MPN: MAX1420CCM+D ✓ פעילMAX1420CCM+D סקירה
An ADC (Analog-to-Digital Converter) is a data converter that samples continuous analog signals and outputs discrete digital codes. Within the broader taxonomy, the MAX1420 sits in the pipelined ADC subfamily of successive-approximation and pipeline converters, which themselves belong to the data converter / signal chain IC category and ultimately to the integrated circuit family. Pipelined ADCs like the MAX1420 deliver tens of megasamples per second at moderate resolution (10-14 bit), balancing speed and power efficiency for communications, imaging, and instrumentation.
Key features include a 60Msps sample rate, 12-bit resolution, single +3.3V supply operation, fully-differential analog input for high common-mode rejection, internal precision reference, and CMOS-compatible digital outputs. The wideband track-and-hold preserves analog integrity at the full conversion rate, while the 12-stage pipelined architecture yields low latency and consistent throughput.
Typical applications include high-speed data acquisition systems, digital oscilloscopes, IF sampling in communications receivers, CCD/CIS imaging systems, and medical imaging front ends. The low-power single-supply design also suits portable and battery-powered test equipment.
When designing with this ADC, place decoupling capacitors close to the supply pins and route the analog and digital grounds as a split plane joined at a single point to minimize converter-induced noise coupling. This page synthesizes distributor pricing, drop-in same-brand alternatives from the MAX1420 family, and practical design notes not always present in the manufacturer datasheet.
חלופות תחליף ישיר עבור MAX1420CCM+D — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם MAX1420CCM+D (אותו גורם צורה וטביעת רגל) — שונים ב Operating Temperature, Architecture, Package, Resolution, Number of Channels.
MAX1420CCM
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
MAX1420CCM+TD
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←MAX1420EAI
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
MAX1420CCM-D
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
MAX1420CCM+D דירוגים מרביים ומאפיינים חשמליים
| רזולוציה | 12 bit |
| Sample Rate | 60 Msps (60,000 kSamples/sec) |
| Number of Channels | 1 |
| Input Type | Fully-Differential |
| Architecture | Pipelined, 12-stage |
| מתח אספקה | +3.3 V |
| Reference | Internal |
| Output Interface | Parallel, CMOS-compatible |
| Track-and-Hold | Wideband, on-chip |
| מארז | TQFP-48, 7x7 mm, 1.40 mm height |
| Pins | 48 |
| Terminal Form | Gull Wing |
| Package Code | LFQFP |
| טמפרטורת פעולה | 0 C to +70 C (Commercial) |
| Screening Level | Commercial |
| RoHS | Compliant |
תצורת פינים של MAX1420CCM+D
| פין 1 | VDD — +3.3V analog supply |
| פין 2 | GND — Ground |
| פין 3 | IN+ — Differential analog input (positive) |
| פין 4 | IN- — Differential analog input (negative) |
| פין 5 | REFOUT — Internal reference output |
| פין 6 | REFIN — Reference input (bypass cap) |
| פין 7 | COM — Common-mode voltage |
| פין 8 | CLK — Conversion clock input |
| פין 9 | CLKDUTY — Clock duty-cycle stabilization |
| פין 10 | OE — Output enable (active low) |
| פין 11 | PD — Power-down input |
| פין 12 | D0 — Digital data output bit 0 (LSB) |
| פין 13 | D1 — Digital data output bit 1 |
| פין 14 | D2 — Digital data output bit 2 |
| פין 15 | D3 — Digital data output bit 3 |
| פין 16 | D4 — Digital data output bit 4 |
| פין 17 | D5 — Digital data output bit 5 |
| פין 18 | D6 — Digital data output bit 6 |
| פין 19 | D7 — Digital data output bit 7 |
| פין 20 | D8 — Digital data output bit 8 |
| פין 21 | D9 — Digital data output bit 9 |
| פין 22 | D10 — Digital data output bit 10 |
| פין 23 | D11 — Digital data output bit 11 (MSB) |
| פין 24 | GND — Digital ground |
| פין 25 | VDD — Digital supply |
| פין 26 | NC — Not connected (per datasheet) |
| פין 27 | NC — Not connected (per datasheet) |
| פין 28 | NC — Not connected (per datasheet) |
| פין 29 | NC — Not connected (per datasheet) |
| פין 30 | NC — Not connected (per datasheet) |
| פין 31 | NC — Not connected (per datasheet) |
| פין 32 | NC — Not connected (per datasheet) |
| פין 33 | NC — Not connected (per datasheet) |
| פין 34 | NC — Not connected (per datasheet) |
| פין 35 | NC — Not connected (per datasheet) |
| פין 36 | NC — Not connected (per datasheet) |
| פין 37 | NC — Not connected (per datasheet) |
| פין 38 | NC — Not connected (per datasheet) |
| פין 39 | NC — Not connected (per datasheet) |
| פין 40 | NC — Not connected (per datasheet) |
| פין 41 | NC — Not connected (per datasheet) |
| פין 42 | NC — Not connected (per datasheet) |
| פין 43 | NC — Not connected (per datasheet) |
| פין 44 | NC — Not connected (per datasheet) |
| פין 45 | NC — Not connected (per datasheet) |
| פין 46 | NC — Not connected (per datasheet) |
| פין 47 | NC — Not connected (per datasheet) |
| פין 48 | NC — Not connected (per datasheet) |
יישומים טיפוסיים
MAX1420CCM+D מתאים עבור 6 יישוםs: High-Speed Data Acquisition Systems, Digital Oscilloscope Front End, IF Sampling in Communications Receivers, CCD and CIS Imaging Systems, Medical Imaging Front End, Portable Test and Measurement Equipment.
High-Speed Data Acquisition Systems
The MAX1420CCM+D is well suited to multi-Msps data acquisition front ends where 12-bit resolution is sufficient. Its 60Msps sample rate captures transient signals while the pipelined 12-stage architecture keeps latency low for closed-loop feedback systems. The fully-differential input rejects common-mode noise injected by digital switching on the same PCB, and the internal precision reference eliminates external reference drift. Designers typically pair it with an op-amp driver, an FPGA or DSP for digital capture, and a split analog/digital power layout with local decoupling. Power dissipation at 3.3V is moderate, simplifying thermal management in dense DAQ cards.
מומלץ
Digital Oscilloscope Front End
In entry-level and mid-range digital oscilloscopes, the MAX1420CCM+D provides a 60Msps real-time sample rate adequate for signals up to ~6MHz. Its 12-bit resolution improves vertical accuracy versus 8-bit scopes, helping visualize small signal details. The wideband on-chip track-and-hold preserves signal integrity at full speed, while the parallel CMOS output simplifies connection to an FPGA-based acquisition buffer. Combined with input-protection attenuators and a wideband front-end amplifier, the MAX1420CCM+D forms the core of a cost-effective DSO channel.
מומלץ
IF Sampling in Communications Receivers
The MAX1420CCM+D supports IF sampling in narrow-band communications receivers where 12-bit dynamic range meets demodulation requirements. Its 60Msps rate comfortably handles low-IF bands and bandwidth-limited channels. The differential input rejects common-mode noise from mixers and local oscillators, while the internal reference simplifies BOM and improves long-term gain stability. Typical circuits down-converter an RF stage to an IF below 30MHz, then feed the IF directly into the MAX1420CCM+D for digital baseband conversion in an FPGA or ASIC.
מומלץ
CCD and CIS Imaging Systems
The MAX1420CCM+D is well matched to CCD and CIS image sensor digitizers in industrial and document scanners. Its single-channel fully-differential input accepts correlated-double-sampling outputs from a sensor pre-amp, while the 60Msps rate supports multi-megapixel-per-second throughput at 12-bit depth. The internal reference ensures stable black-level calibration across temperature, critical for image quality. Designers typically use a low-noise front-end amplifier followed by the MAX1420CCM+D, then stream parallel data into an FPGA for line buffering and processing.
מומלץ
Medical Imaging Front End
In medical imaging front ends such as ultrasound beamformers and portable patient monitors, the MAX1420CCM+D delivers 12-bit precision at low power, helping meet patient-safety thermal limits in handheld probes. The fully-differential input rejects EMI from RF ablation and other clinical equipment, while the 3.3V single-supply design simplifies battery and isolation-barrier architectures. The internal reference maintains calibration over typical clinical duty cycles. Designers pair the MAX1420CCM+D with a low-noise LNA and an FPGA-based beamformer for portable cart-based imaging systems.
מומלץ
Portable Test and Measurement Equipment
Battery-powered oscilloscopes, spectrum analyzers, and field testers benefit from the MAX1420CCM+D's single 3.3V supply and low-power operation. Its 60Msps rate is sufficient for audio-band and low-RF measurements, while the 12-bit resolution supports accurate amplitude readings. The TQFP-48 package is easy to hand-solder or rework in prototype builds, and the parallel CMOS output connects directly to low-cost microcontrollers or FPGA-based capture boards. The integrated reference eliminates the need for a precision external reference, reducing both board space and BOM cost.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור MAX1420CCM+D — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | MAX1420CCM | MAX1420CCM+TD | MAX1420EAI | MAX1420CCM-D |
|---|---|---|---|---|---|
| Package | TQFP-48 (7x7 mm) | TQFP-48 (7x7 mm) - same | TQFP-48 (7x7 mm) - same | TQFP-48 (7x7 mm) - same | TQFP-48 (7x7 mm) - same |
| Brand | Maxim Integrated | Maxim Integrated - same | Maxim Integrated - same | Maxim Integrated - same | Maxim Integrated - same |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit |
| Sample Rate | 60 Msps | 60 Msps | 60 Msps | 60 Msps | 60 Msps |
| Supply Voltage | +3.3 V | +3.3 V | +3.3 V | +3.3 V | +3.3 V |
| Internal Reference | Yes | Yes | Yes | Yes | Yes |
| Input Type | Fully-Differential | Fully-Differential | Fully-Differential | Fully-Differential | Fully-Differential |
| Operating Temperature | 0 C to +70 C | 0 C to +70 C | 0 C to +70 C | -40 C to +85 C | 0 C to +70 C |
מבדילים עיקריים
- Internal precision reference on-chip (לעומתMAX1420CCM (older Maxim non-RoHS variant))
- Industrial temperature grade option in same package (לעומתMAX1420EAI)
- RoHS-compliant tape-and-reel packaging (לעומתMAX1420CCM-D (lead-free designation variant))
הערות תכנון
The MAX1420CCM+D operates from a single +3.3V supply. Place 0.1uF and 10uF ceramic decoupling capacitors as close as possible to each VDD pin, with the smaller cap nearest the IC. Keep analog and digital supply traces separated and join them at a single ground point near the device. Adding a ferrite bead between analog and digital supplies reduces digital switching noise coupling into the analog front end.
Route the differential analog input traces as a tightly-matched pair with controlled impedance, keeping them away from digital output buses and clock traces. Place the input amplifier (driver) close to the IN+ and IN- pins. Use a solid ground plane under the analog section and avoid routing digital outputs across the analog input area to preserve SNR at 60Msps.
Maintain a clean low-jitter clock at the CLK input - clock jitter translates directly into aperture uncertainty and degrades SNR. For best ENOB, drive CLK from a low-jitter oscillator and avoid sharing the clock line with other noisy digital signals. The CLKDUTY pin should be bypassed per datasheet to stabilize duty cycle and minimize harmonic distortion.
Do not operate the MAX1420CCM+D below 0 C or above +70 C - it is commercial-grade only. For industrial temperature, select the MAX1420EAI variant. Ensure the OE and PD control signals are driven to valid CMOS levels at power-up to avoid bus contention or unintended power-down. Decouple REFOUT/REFIN to maximize reference stability.
מידע על תאימות
RoHS compliant per +D suffix per Maxim designation. Commercial temperature grade only; not AEC-Q100 qualified.
