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MAX1437B
Octal, 12-Bit, 50Msps, 1.8V ADC with Serial LVDS Outputs
Functionally Compatible with the MAX1437, but Provides a Much Smaller Footprint
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Status
Active: In Production.
Description
The MAX1437B octal, 12-bit analog-to-digital converter (ADC) features fully differential inputs, a pipelined architecture, and digital error correction incorporating a fully differential signal path. This ADC is optimized for low-power and high-dynamic performance in medical imaging instrumentation and digital communications applications. The MAX1437B operates from a 1.8V single supply and consumes only 768mW (96mW per channel) while delivering a 70.2dB (typ) signal-to-noise ratio (SNR) at a 5.3MHz input frequency. In addition to low operating power, the MAX1437B features a low-power standby mode for idle periods.
An internal 1.24V precision bandgap reference sets the full-scale range of the ADC. A flexible reference structure allows the use of an external reference for applications requiring increased accuracy or a different input voltage range. The reference architecture is optimized for low noise.
A single-ended clock controls the data-conversion process. An internal duty-cycle equalizer compensates for wide variations in clock duty cycle. An on-chip phase-locked loop (PLL) generates the high-speed serial low-voltage differential signal (LVDS) clock.
The MAX1437B has self-aligned serial LVDS outputs for data, clock, and frame-alignment signals. The output data is presented in two's complement format.
The MAX1437B offers a maximum sample rate of 50Msps. This device is available in a small, 10mm x 10mm x 0.8mm, 68-pin TQFN package with exposed pad and is specified for the extended industrial (-40°C to +85°C) temperature range.
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Data Sheet
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An evaluation kit is available: MAX1437BEVKIT
Key Features
- Excellent Dynamic Performance
- 70.2dB SNR at 5.3MHz
- 98dBc SFDR at 5.3MHz
- 82dB Channel Isolation at 5.3MHz
- Ultra-Low Power
- 96mW per Channel (Normal Operation)
- Serial LVDS Outputs
- Pin-Selectable LVDS/SLVS (Scalable Low-Voltage Signal) Mode
- LVDS Outputs Support Up to 30in FR-4 Backplane Connections
- Test Mode for Digital Signal Integrity
- Fully Differential Analog Inputs
- Wide Differential Input Voltage Range (1.4VP-P)
- On-Chip 1.24V Precision Bandgap Reference
- Clock Duty-Cycle Equalizer
- Compact, 68-Pin TQFN Package with Exposed Pad
- Evaluation Kit Available (Order MAX1437BEVKIT)
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Applications/Uses
- Instrumentation
- Multichannel Communications
- 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) |
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) |
| max ≥ |
@ fIN |
min |
min |
min |
typ |
max w/pins |
| MAX1437B |
8 |
12 |
50 |
20 |
93 |
11.4 |
69.7 |
70.1 |
-93 |
0.3 |
0.25 |
100 |
348 |
Serial LVDS |
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
Product Guides
Reliability Reports
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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| MAX1437BETK+
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Active |
TQFN;68 pin;102 mm²
Outline Drawing:21-0142 (PDF)
Land Pattern: 90-0101 (PDF)
Use pkgcode/variation: T6800+4*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX1437BETK+T
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Active |
TQFN;68 pin;102 mm²
Outline Drawing:21-0142 (PDF)
Land Pattern: 90-0101 (PDF)
Use pkgcode/variation: T6800+4*
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-40°C to +85°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
| MAX1434 |
Octal, 10-Bit, 50Msps, 1.8V ADC with Serial LVDS Outputs |
| MAX1436 |
Octal, 12-Bit, 40Msps, 1.8V ADC with Serial LVDS Outputs |
| MAX1437 |
Octal, 12-Bit, 50Msps, 1.8V ADC with Serial LVDS Outputs |
| MAX1438 |
Octal, 12-Bit, 65Msps, 1.8V ADC with Serial LVDS Outputs |
| MAX1436B |
Octal, 12-Bit, 40Msps, 1.8V ADC with Serial LVDS Outputs |
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Information Index
Document Ref.: 19-4204
Rev 2;
2011-03-08
This page last modified: 2011-03-08
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