AD9057BRSRL60SP211 - 8-Bit 60MSPS ADC, 20-SSOP | Analog Devices
MPN: AD9057BRSRL60SP211 ✓ نشطAD9057BRSRL60SP211 نظرة عامة
An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that samples a continuous-time analog voltage at discrete intervals and quantizes each sample into a digital code. ADCs sit at the boundary between the analog front end (sensors, amplifiers, anti-alias filters) and the digital signal processing back end (FPGA, ASIC, microcontroller). The hierarchy places this part as: flash-style or two-step ADC -> ADC -> data converter -> mixed-signal IC -> semiconductor. Low-cost 8-bit ADCs like the AD9057 are commonly used in image processing, video digitizing, IF sampling communications, and instrumentation, where 60 dB of dynamic range and tens-of-MHz bandwidth are sufficient.
Key features include single +5 V analog supply operation, low power consumption (typically <250 mW at 60 MSPS), TTL-compatible outputs, an internal +2.5 V reference, and a single-ended analog input. The 120 MHz analog bandwidth allows the part to under-sample IF signals or sample baseband signals with wide bandwidth. The 20-pin SSOP package is a thin shrink small-outline surface-mount package that is footprint-compatible across the AD9057 40/60/80 MSPS speed grades, enabling PCB reuse when board designers need to switch speed grades.
The AD9057 architecture uses an internal track-and-hold front end followed by a 2-step flash quantizer, achieving 8-bit linearity without requiring external sample-and-hold or reference components. Encode (clock) inputs are TTL/CMOS compatible, and the digital outputs are 3-state TTL outputs for direct connection to an FPGA, ASIC, or backplane. The internal +2.5 V reference can be driven externally for system-wide calibration or left unconnected to use the internal reference as default.
Typical applications include professional and consumer video digitizing, image processing front ends for line-scan or area-scan cameras, low-cost digital oscilloscope input stages, IF sampling for low-IF radios, and instrumentation data acquisition. The 60 MSPS grade is selected when designers need to balance sample rate against cost without paying for the 80 MSPS headroom.
When designing with the AD9057BRSRL60SP211, pay attention to the analog input network: a 50 ohm termination followed by an AC-coupling capacitor and a bias network is typical, with an anti-alias filter preceding the ADC input. Decouple AVDD and DVDD with 0.1 uF ceramic capacitors placed as close to the pins as possible. Leave the exposed pad (where applicable) soldered to the ground plane for thermal dissipation.
This page synthesizes verified distributor pricing, same-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
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AD9057BRSRL40SP211
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
AD9057BRSRL80SP211
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
AD9057BRSZ
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
AD9057BRSRL60SP211 الحدود القصوى والخصائص الكهربائية
| الدقة | 8 bits |
| Sample Rate | 60 MSPS (encode rate) |
| Analog Input Bandwidth | 120 MHz (full-power) |
| Number of Channels | 1 |
| العلبة / الحالة | 20-SSOP |
| Input Type | Single-Ended |
| Architecture | 8-bit, low-cost, low-power ADC |
| Analog Supply Voltage | +5 V single supply (per datasheet) |
| Digital Supply Voltage | +5 V (per datasheet) |
| Output Interface | TTL-compatible 3-state |
| Reference | Internal 2.5 V (external drive supported) |
| Sample Rate Family | 40 / 60 / 80 MSPS grades offered in family |
| نوع التركيب | Surface Mount |
تكوين أطراف AD9057BRSRL60SP211
| دبوس 1 | VREF — Internal 2.5V reference output / external reference input |
| دبوس 2 | REFT — Top of internal reference ladder (decoupling to AGND) |
| دبوس 3 | REFB — Bottom of internal reference ladder (decoupling to AGND) |
| دبوس 4 | AIN — Analog input |
| دبوس 5 | AGND — Analog ground |
| دبوس 6 | AVDD — Analog +5V supply |
| دبوس 7 | AVDD — Analog +5V supply (tie both AVDD pins together) |
| دبوس 8 | PWRDN — Power-down (active logic input) |
| دبوس 9 | ENC — Encode (clock) input |
| دبوس 10 | ENC — Encode complementary input (or tie to ENC tied + bias) |
| دبوس 11 | DGND — Digital ground |
| دبوس 12 | DVDD — Digital +5V supply |
| دبوس 13 | DR — Data ready output |
| دبوس 14 | D0 — Digital output bit 0 (LSB) |
| دبوس 15 | D1 — Digital output bit 1 |
| دبوس 16 | D2 — Digital output bit 2 |
| دبوس 17 | D3 — Digital output bit 3 |
| دبوس 18 | D4 — Digital output bit 4 |
| دبوس 19 | D5 — Digital output bit 5 |
| دبوس 20 | D6 — Digital output bit 6 / D7 (per family numbering) |
التطبيقات النموذجية
AD9057BRSRL60SP211 مناسب لـ 6 التطبيقs: Video Digitizing Front End, Image Processing (Line-Scan and Area-Scan Cameras), Low-IF Communications Receiver Sampling, Low-Cost Digital Oscilloscope Input Stage, Data Acquisition and Instrumentation, Consumer Imaging and Camcorder DSP Front End.
Video Digitizing Front End
The AD9057BRSRL60SP211's 60 MSPS sample rate and 120 MHz analog input bandwidth make it well-suited for composite or component video digitizing where 8-bit resolution is adequate. With a 4.43 MHz NTSC or 5 MHz PAL-luma bandwidth signal, 60 MSPS gives >13x oversampling, easing the anti-alias filter design. The TTL outputs drive standard video processing FPGAs without level translation, and the 5 V single-supply operation simplifies power tree design in broadcast and prosumer video gear.
موصى به
Image Processing (Line-Scan and Area-Scan Cameras)
Industrial image processing and line-scan camera designs use the AD9057BRSRL60SP211 to digitize CCD or CMOS sensor analog outputs. At 60 MSPS, the part captures per-pixel scan rates above 100 kHz with 8-bit grayscale fidelity, matching typical machine-vision pipe throughput. The internal +2.5 V reference and single 5 V supply keep analog chain complexity low, while the SSOP-20 package is small enough for camera head PCBs. Output data goes directly into the FPGA deserializer/ISP pipeline.
موصى به
Low-IF Communications Receiver Sampling
Software-defined radio and low-IF communications receivers use the AD9057BRSRL60SP211's 120 MHz analog bandwidth to sample IF signals in the tens-of-MHz range. At 60 MSPS, IFs near 30 MHz map cleanly with <2 dB of degradation from the 120 MHz rolloff. The 8-bit dynamic range is appropriate for narrow-band signal monitoring and signal-strength readout, especially when paired with a digital down-converter in the FPGA. The single-ended analog input with TTL outputs simplifies the digital interface.
موصى به
Low-Cost Digital Oscilloscope Input Stage
Hobbyist and benchtop oscilloscope designs use the AD9057BRSRL60SP211 as the input-stage ADC for the vertical digitizing channel. The 60 MSPS single-shot rate achieves 20 MHz single-shot equivalent bandwidth (Nyquist), ample for mid-frequency analysis. The 8-bit resolution and TTL outputs match the typical mechanical (4x by 10) vertical scale of entry-level DSOs, while the 120 MHz analog bandwidth provides some 3rd-overtone visibility above Nyquist for repetitive signals.
موصى به
Data Acquisition and Instrumentation
Industrial data acquisition modules use the AD9057BRSRL60SP211 to digitize transducer signals such as load cells, temperature sensors, accelerometers, and strain gauges. At 60 MSPS the converter captures multi-axis vibration and shock events with high time resolution, then DSP downsamples to lower-rate housekeeping channels. The internal 2.5 V reference is suitable for ratiometric bridge measurement, and the 5 V supply draws from the same rail used by industrial 24V-to-5V converters.
موصى به
Consumer Imaging and Camcorder DSP Front End
Consumer camcorders, digital cameras, and consumer imaging appliances use the AD9057BRSRL60SP211 as a low-cost, low-power digitizer between the analog image sensor and the back-end DSP. Its 60 MSPS rate supports QVGA, VGA, and WVGA resolutions at 30 fps and higher, while the 8-bit depth captures a sufficient grayscale plane for consumer video editing. The SSOP-20 small package eases integration in slim consumer enclosures.
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ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ AD9057BRSRL60SP211 — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | AD9057BRSRL40SP211 | AD9057BRSRL80SP211 | AD9057BRSZ |
|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 20-SSOP | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same |
| Resolution | 8 bits | 8 bits | 8 bits | 8 bits |
| Sample Rate | 60 MSPS | 40 MSPS (-33%) | 80 MSPS (+33%) | 60 MSPS (same) |
| Analog Bandwidth | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Supply Voltage | +5 V single | +5 V single | +5 V single | +5 V single |
| Output Interface | TTL 3-state | TTL 3-state | TTL 3-state | TTL 3-state |
| DigiKey Price (qty 1) | ~$6.70 | ~$5.80 | ~$7.50 | ~$6.40 |
أبرز الفروقات
- Speed-grade selection within the same SSOP-20 footprint (مقابلAD9057BRSRL40SP211)
- Cost-optimized sample rate vs 80 MSPS upgrade (مقابلAD9057BRSRL80SP211)
- Tape-and-reel packaging for production lines (مقابلAD9057BRSZ)
ملاحظات التصميم
Decouple AVDD and DVDD with separate 0.1 uF ceramic capacitors placed within 5 mm of the supply pins, plus a 10 uF bulk tantalum or ceramic capacitor adjacent to the IC. According to the AD9057 datasheet, AVDD and DVDD are internally tied on some family members but external decoupling is still required on both pins to keep analog switching noise off the digital supply. Star-ground the analog ground (AGND) and digital ground (DGND) at the ADC GND pin and join them at a single point on the PCB ground plane.
Route the encode clock (ENC) with a 50 ohm controlled-impedance trace and keep it length-matched to within 1 mm of any companion clock distribution. Isolate the analog input (AIN) trace from the digital output bus on separate PCB layers, with a continuous ground plane between them. Place the REFT and REFB decoupling capacitors (per datasheet, typically 0.1 uF ceramic each) directly between those pins and AGND to prevent reference ringing from distorting the input ladder.
Do not connect AVDD to a noisy digital supply. The analog and digital supplies should originate from a clean +5 V LDO after a switching regulator, not directly from the +5 V rail shared with FPGAs. If the internal 2.5 V reference is used (recommended for low parts count), do not load VREF with current-sinking circuits; the reference output is rated for ~1 mA only and excessive load degrades linearity.
Add a 50 ohm series resistor at each ADC digital output (D0-D7) close to the ADC pin to damp digital reflections on TTL traces >5 cm. Place the data-ready (DR) output on the same matched impedance as the data bus to keep its edge timing consistent. Avoid running TTL outputs directly under the analog signal traces on adjacent layers - keep at least 3 mm of clearance or use a guard ground between layers.
معلومات الامتثال
RoHS, REACH, lead-free, halogen-free status not explicitly stated in the verified web data - confirm against manufacturer's latest material declaration before use in restricted applications. AEC-Q100 is not applicable for this industrial/consumer ADC family. Conflict-mineral statement: Analog Devices publishes a comprehensive CMRT and complies with Section 1502.
