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MAX12558
Dual, 80Msps, 14-Bit, IF/Baseband ADC
Ideal for High-Performance Communication Receivers
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Status
Active: In Production.
Description
The MAX12558 is a dual 3.3V, 14-bit analog-to-digital
converter (ADC) featuring fully differential wideband
track-and-hold (T/H) inputs, driving internal quantizers.
The MAX12558 is optimized for low power, small size,
and high dynamic performance in intermediate frequency
(IF) and baseband sampling applications. This dual
ADC operates from a single 3.3V supply, consuming
only 756mW while delivering a typical 71.7dB signal-tonoise
ratio (SNR) performance at a 175MHz input frequency.
The T/H input stages accept single-ended or
differential inputs up to 400MHz. In addition to low operating
power, the MAX12558 features a 330µW powerdown
mode to conserve power during idle periods.
A flexible reference structure allows the MAX12558 to
use the internal 2.048V bandgap reference or accept
an externally applied reference and allows the reference
to be shared between the two ADCs. The reference
structure allows the full-scale analog input range
to be adjusted from ±0.35V to ±1.15V. The MAX12558
provides a common-mode reference to simplify design
and reduce external component count in differential
analog input circuits.
The MAX12558 supports either a single-ended or differential
input clock. User-selectable divide-by-two (DIV2)
and divide-by-four (DIV4) modes allow for design flexibility
and help to reduce the negative effects of clock jitter.
Wide variations in the clock duty cycle are compensated
with the ADC's internal duty-cycle equalizer (DCE).
The MAX12558 features two parallel, 14-bit-wide,
CMOS-compatible outputs. The digital output format is
pin-selectable to be either two's complement or Gray
code. A separate power-supply input for the digital outputs
accepts a 1.7V to 3.6V voltage for flexible interfacing
with various logic levels. The MAX12558 is available
in a 10mm x 10mm x 0.8mm, 68-pin thin QFN package
with exposed paddle (EP), and is specified for the
extended (-40°C to +85°C) temperature range.
See a parametric table of the complete family of pin-compatible, 12-/14-bit high-speed ADCs.
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Data Sheet
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An evaluation kit is available: MAX12527EVKIT, MAX12528EVKIT, MAX12529EVKIT, MAX12557EVKIT, MAX12558EVKIT, MAX12559EVKIT
Key Features
- Direct IF Sampling Up to 400MHz
- Excellent Dynamic Performance
- 74.4dB/71.7dB SNR at fIN = 70MHz/175MHz
- 84.2dBc/79dBc SFDR at fIN = 70MHz/175MHz
- 3.3V Low-Power Operation
- 789mW (Differential Clock Mode)
- 756mW (Single-Ended Clock Mode)
- Fully Differential or Single-Ended Analog Input
- Adjustable Differential Analog Input Voltage
- 750MHz Input Bandwidth
- Adjustable, Internal or External, Shared Reference
- Differential or Single-Ended Clock
- Accepts 25% to 75% Clock Duty Cycle
- User-Selectable DIV2 and DIV4 Clock Modes
- Power-Down Mode
- CMOS Outputs in Two's Complement or Gray Code
- Out-of-Range and Data-Valid Indicators
- Small, 68-Pin Thin QFN Package (10mm x 10mm x 0.8mm)
- 12-Bit, Pin-Compatible Version Available (MAX12528)
- Evaluation Kit Available (Order MAX12558EVKIT)
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Applications/Uses
- Digital Set-Top Boxes
- I/Q Receivers
- IF and Baseband Communication Receivers: Cellular, LMDS, Point-to-Point Microwave, MMDS, HFC, WLAN
- Low-Power Data Acquisition
- Portable Instrumentation
- Ultrasound and Medical Imaging
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Key Specifications:
| High-Speed ADCs (> 5Msps) |
| Part Number |
Input Chan. |
Resolution
(bits) |
Sample Rate
(Msps) |
AC Specs
(MHz) |
SFDR
(dBc) |
SINAD
(dB) |
SNR
(dB) |
THD
(dB) |
INL
(±LSB) |
DNL
(±LSB) |
Full Pwr. BW
(MHz) |
ICC
(mA) |
Data Bus Interface |
Smallest Available Pckg.
(mm2) |
| max ≥ |
@ fIN |
min |
min |
typ |
max w/pins |
| MAX12558 |
2 |
14 |
80 |
175 |
79 |
70.6 |
71.7 |
-77.1 |
1.4 |
0.6 |
750 |
251 |
µP/14 |
102 |
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See All High-Speed ADCs (> 5Msps) (75)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Functional Diagram
Application Notes
Reliability Reports
| Request Reliability Report for: |
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Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX12558ETK+D
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Active |
TQFN;68 pin;102 mm²
Outline Drawing:21-0142 (PDF)
Land Pattern: 90-0099 (PDF)
Use pkgcode/variation: T6800+2*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX12558ETK+TD
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Active |
QFN;
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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| MAX12558ETK-D
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Active |
TQFN;68 pin;102 mm²
Outline Drawing:21-0142 (PDF)
Land Pattern: 90-0099 (PDF)
Use pkgcode/variation: T6800-2*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX12558ETK-TD
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Active |
QFN;
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Similar Products by Function
| MAX12527 |
Dual, 65Msps, 12-Bit, IF/Baseband ADC |
| MAX12557 |
Dual, 65Msps, 14-Bit, IF/Baseband ADC |
| MAX12528 |
Dual, 80Msps, 12-Bit, IF/Baseband ADC |
| MAX12559 |
Dual, 96Msps, 14-Bit, IF/Baseband ADC |
| MAX12529 |
Dual, 96Msps, 12-Bit, IF/Baseband ADC |
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Evaluation Kits
Products with Similar Part Numbers
Didn't Find What You Need?
Information Index
Document Ref.: 19-3842
Rev 0;
2005-11-03
This page last modified: 2009-10-14
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