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MAX11638, MAX11639, MAX11642, MAX11643
8-Bit, 16-/8-Channel, 300ksps ADCs with FIFO and Internal Reference
Complete Family of Low-Cost, 8-Bit, 8-/16-Channel ADCs with Internal Reference, FIFO, and SPI Interface
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Status
Active: In Production.
Description
The MAX11638/MAX11639/MAX11642/MAX11643 are serial 8-bit analog-to-digital converters (ADCs) with an internal reference. These devices feature on-chip FIFO, scan mode, internal clock mode, internal averaging, and AutoShutdown™. The maximum sampling rate is 300ksps using an external clock. The MAX11642/MAX11643 have 16 input channels and the MAX11638/MAX11639 have 8 input channels. These four devices operate from either a +3V supply or a +5V supply, and contain a 10MHz SPI/QSPI™/MICROWIRE®-compatible serial port.
The MAX11638/MAX11639 are available in 16-pin QSOP packages. The MAX11642/MAX11643 are available in 24-pin QSOP packages. All four devices are specified over the extended -40°C to +85°C temperature range.
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Data Sheet
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An evaluation kit is available: MAX11633EVSYS, MAX11635EVSYS, MAX1231BEVSYS
Key Features
- Analog Multiplexer with Track-and-Hold
- 16 Channels (MAX11642/MAX11643)
- 8 Channels (MAX11638/MAX11639)
- Single Supply
- 2.7V to 3.6V (MAX11639/MAX11643)
- 4.75V to 5.25V (MAX11638/MAX11642)
- Internal Reference
- 2.5V (MAX11639/MAX11643)
- 4.096V (MAX11638/MAX11642)
- External Reference: 1V to VDD
- 16-Entry First-In/First-Out (FIFO)
- Scan Mode, Internal Averaging, and Internal Clock
- Accuracy: ±1 LSB INL, ±1 LSB DNL, No Missing Codes Over Temperature
- 10MHz 3-Wire SPI-/QSPI-/MICROWIRE-Compatible Interface
- Small Packages
- 16-Pin QSOP (MAX11638/MAX11639)
- 24-Pin QSOP (MAX11642/MAX11643)
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Applications/Uses
- Data Logging
- Data-Acquisition Systems
- Industrial Control Systems
- Instrumentation
- Patient Monitoring
- System Supervision
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Key Specifications:
| Precision ADCs (< 5Msps) |
| Part Number |
Resolution
(bits) |
Input Chan. |
Conv. Rate
(ksps) |
Data Bus
(bits) |
Diff/S.E. Input |
Internal VREF
(V) |
External VREF
(V) |
External VREF
(V) |
Unipolar VIN
(V) |
SNR
(dB) |
SINAD
(dB) |
THD
(dB) |
SFDR
(dB) |
DNL
(±LSB) |
INL
(±LSB) |
Package/Pins |
Budgetary Price |
| ADC |
max |
nominal |
min |
max |
max |
See Notes |
| MAX11638 |
8 |
8 |
300 |
SPI |
S.E. Only |
4.096 |
1 |
5.25 |
4.096 |
49 |
49 |
-70 |
72 |
0.5 |
0.5 |
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$1.90 @1k |
| MAX11639 |
8 |
2.5 |
3.6 |
2.5 |
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$1.90 @1k |
| MAX11640 |
12 |
4.096 |
5.25 |
4.096 |
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- |
| MAX11641 |
12 |
2.5 |
3.6 |
2.5 |
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- |
| MAX11642 |
16 |
4.096 |
5.25 |
4.096 |
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$2.20 @1k |
| MAX11643 |
16 |
2.5 |
3.6 |
2.5 |
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$2.20 @1k |
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See All Precision ADCs (< 5Msps) (423)
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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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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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| MAX11638EEE+
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Active |
QSOP;16 pin;30.9 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16+5*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX11638EEE+T
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Active |
QSOP;16 pin;30.9 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16+5*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX11639EEE+
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Active |
QSOP;16 pin;30.9 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16+5*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX11639EEE+T
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Active |
QSOP;16 pin;30.9 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16+5*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX11642EEG+
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Active |
QSOP;24 pin;54.2 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24+3*
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-40°C to +85°C
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See data sheet
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| MAX11642EEG+T
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Active |
QSOP;24 pin;54.2 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24+3*
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-40°C to +85°C
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See data sheet
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| MAX11643EEG+
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Active |
QSOP;24 pin;54.2 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24+3*
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-40°C to +85°C
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See data sheet
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| MAX11643EEG+T
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Active |
QSOP;24 pin;54.2 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0172 (PDF)
Use pkgcode/variation: E24+3*
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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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Notes and Comments
Please refer to MAX11618–MAX11621/MAX11624/MAX11625 for an equivalent 10-bit family, and the MAX11626–MAX11629 for an equivalent 12-bit family of ADCs.
Similar Products by Function
Evaluation Kits
| MAX11633EVSYS, MAX11635EVSYS, ... |
Evaluation Systems for the MAX1030, MAX1031, MAX1230, MAX1231, MAX11624, MAX11625, MAX11632, MAX11633, MAX11634, MAX11635, MAX11642, and MAX11643 |
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Information Index
Document Ref.: 19-6035
Rev 0;
2011-10-20
This page last modified: 2011-10-20
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