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MAX1446
10-Bit, 60Msps, 3.0V, Low-Power ADC with Internal Reference
3V, 10-Bit, 60Msps ADC Delivers 72dB SFDR
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Status
Active: In Production.
Description
The MAX1446 10-bit, 3V analog-to-digital converter (ADC) features a fully differential input, a pipelined 10-stage ADC architecture with digital error correction and wideband track and hold (T/H) incorporating a fully differential signal path. This ADC is optimized for low-power, high dynamic performance applications in imaging and digital communications. The MAX1446 operates from a single 2.7V to 3.6V supply, consuming only 90mW while delivering a 59.5dB signal-to-noise ratio (SNR) at a 20MHz input frequency. The fully differential input stage has a 400MHz, -3dB bandwidth and may be operated with single-ended inputs. In addition to low operating power, the MAX1446 features a 5µA power-down mode for idle periods.
An internal 2.048V precision bandgap reference is used to set the ADC full-scale range. A flexible reference structure allows the user to supply a buffered, direct or externally derived reference for applications requiring increased accuracy or a different input voltage range.
Lower and higher speed, pin-compatible versions of the MAX1446 are also available. Refer to the MAX1444 data sheet for a 40Msps version, the MAX1448 datasheet for an 80Msps version, and the MAX1449 datasheet for a 105Msps version.
The MAX1446 has parallel, offset binary, three-state outputs that can be operated from 1.7V to 3.3V to allow flexible interfacing. The device is available in a 5mm x 5mm, 32-pin TQFP package and is specified over the extended industrial (-40°C to +85°C) and automotive (-40°C to+105°C) temperature ranges.
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Data Sheet
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An evaluation kit is available: MAX1448EVKIT
Key Features
- Single 3.0V Operation
- Excellent Dynamic Performance
- 59.5dB SNR at fIN = 20MHz
- 73dB SFDR at fIN = 20MHz
- Low Power:
- 30mA (Normal Operation)
- 5µA (Shutdown Mode)
- Fully Differential Analog Input
- Wide 2VP-P Differential Input Voltage Range
- 400MHz -3dB Input Bandwidth
- On-Chip 2.048V Precision Bandgap Reference
- CMOS-Compatible Three-State Outputs
- 32-Pin TQFP Package
- Evaluation Kit Available (MAX1448 EV Kit)
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Applications/Uses
- Baseband and IF Digitization
- CCD Imaging
- Digital Set-Top Boxes
- Ultrasound Imaging
- Video Digitizing Applications
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Key Specifications:
| High-Speed ADCs (> 5Msps) |
| Part Number |
Input Chan. |
Resolution
(bits) |
Sample Rate
(Msps) |
AC Specs
(MHz) |
SFDR
(dBc) |
ENOB
(bits) |
SINAD
(dB) |
SNR
(dB) |
THD
(dB) |
INL
(±LSB) |
DNL
(±LSB) |
Full Pwr. BW
(MHz) |
ICC
(mA) |
Data Bus Interface |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| max ≥ |
@ fIN |
min |
min |
min |
typ |
max w/pins |
See Notes |
| MAX1446 |
1 |
10 |
60 |
20 |
73 |
9.5 |
59 |
59.5 |
-70 |
0.6 |
0.4 |
400 |
37 |
µP/10 |
51.8 |
$6.27 @1k |
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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
Product Guides
Reliability Reports
| Show FIT data for: |
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| 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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| MAX1446EHJ
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Active |
TQFP;32 pin;51.8 mm²
Outline Drawing:21-0110 (PDF)
Land Pattern: 90-0149 (PDF)
Use pkgcode/variation: H32-2F*
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-40°C to +85°C
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See data sheet
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| MAX1446EHJ+
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Active |
TQFP;32 pin;51.8 mm²
Outline Drawing:21-0110 (PDF)
Land Pattern: 90-0149 (PDF)
Use pkgcode/variation: H32+2F*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX1446EHJ+T
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Active |
TQFP;32 pin;51.8 mm²
Outline Drawing:21-0110 (PDF)
Land Pattern: 90-0149 (PDF)
Use pkgcode/variation: H32+2F*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX1446EHJ-T
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Active |
TQFP;32 pin;51.8 mm²
Outline Drawing:21-0110 (PDF)
Land Pattern: 90-0149 (PDF)
Use pkgcode/variation: H32-2F*
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-40°C to +85°C
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See data sheet
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| MAX1446GHJ+
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Active |
TQFP;32 pin;51.8 mm²
Outline Drawing:21-0110 (PDF)
Land Pattern: 90-0149 (PDF)
Use pkgcode/variation: H32+2F*
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-40°C to +105°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX1446GHJ+T
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Active |
TQFP;32 pin;51.8 mm²
Outline Drawing:21-0110 (PDF)
Land Pattern: 90-0149 (PDF)
Use pkgcode/variation: H32+2F*
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-40°C to +105°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
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
| MAX1425 |
10-Bit, 20Msps ADC |
| MAX1444 |
10-Bit, 40Msps, 3.0V, Low-Power ADC with Internal Reference |
| MAX1448 |
10-Bit, 80Msps, Single 3.0V, Low-Power ADC with Internal Reference |
| MAX1449 |
10-Bit, 105Msps, Single +3.3V, Low-Power ADC with Internal Reference |
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More Information
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Information Index
Document Ref.: 19-1729
Rev 4;
2009-03-11
This page last modified: 2009-10-27
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