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MAX5742
12-Bit, Low-Power, Quad, Voltage-Output DAC with Serial Interface
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Status
Active: In Production.
Description
The MAX5742 quad, 12-bit, low-power, buffered voltage-output, digital-to-analog converter (DAC) is packaged in a space-saving 10-pin µMAX® package (5mm x 3mm). The wide supply voltage range of +2.7V to +5.5V and 229µA supply current accommodates low-power and low-voltage applications. DAC outputs employ on-chip precision output amplifiers that swing rail-to-rail. The MAX5742's reference input accepts a voltage range from 0 to VDD. In power-down the reference input is high impedance, further reducing the system's total power consumption.
The 20MHz, 3-wire SPI™, QSPI™, MICROWIRE™ and DSP-compatible serial interface saves board space and reduces the complexity of opto- and transformer-isolated applications. The MAX5742 on-chip power-on reset (POR) circuit resets the DAC outputs to zero and loads the output with a 100kΩ resistor to ground. This provides additional safety for applications that drive valves or other transducers that need to be off on power-up. The MAX5742's software-controlled power-down reduces supply current to less than 0.3µA and provides software-selectable output loads (1kΩ, 100kΩ, or high impedance) while in power-down. The MAX5742 is specified over the -40°C to +125°C automotive temperature range.
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Data Sheet
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Key Features
- Ultra-Low Power Consumption
- 229µA at VDD = +3.6V
- 271µA at VDD = +5.5V
- Wide +2.7V to +5.5V Single-Supply Range
- 10-Pin µMAX Package
- 0.3µA Power-Down Current
- Guaranteed 12-Bit Monotonicity (±1 LSB DNL)
- Safe Power-Up Reset to Zero Volts at DAC Output
- Three Software-Selectable Power-Down Impedances (100kΩ, 1kΩ, Hi-Z)
- Fast 20MHz 3-Wire SPI, QSPI, and MICROWIRE-Compatible Serial Interface
- Rail-to-Rail Output Buffer Amplifiers
- Schmitt-Triggered Logic Inputs for Direct Interfacing to Optocouplers
- Wide -40°C to +125°C Operating Temperature Range
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Applications/Uses
- Automatic Tuning
- Battery-Powered Instruments
- Gain and Offset Adjustment
- Power Amplifier Control
- Process-Control I/O Boards
- VCO Control
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Key Specifications:
| Precision DACs (12-18 Bits) |
| Part Number |
Resolution
(bits) |
Channels |
Output Type |
Reference |
INL
(±LSB) |
Interface |
Supply Range
(V) |
Supply Range
(V) |
Voltage Supplies |
ISHUTDN
(µA) |
ICC
(mA) |
Settling Time
(µs) |
Glitch Energy
(nVs) |
Oper. Temp.
(°C) |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| max |
min |
max |
typ |
max |
typ |
typ |
max w/pins |
See Notes |
| MAX5742 |
12 |
4 |
Voltage- Buffered |
Ext. |
16 |
Serial - SPI |
2.7 |
5.5 |
1 |
260 |
0.42 |
4 |
12 |
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15.4 |
$7.36 @1k |
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See All Precision DACs (12-18 Bits) (247)
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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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| Precision DACs (4-12 Bits) |
| Part Number |
Resolution
(bits) |
Channels |
Output Type |
Reference |
INL
(±LSB) |
Interface |
Supply Range
(V) |
Supply Range
(V) |
Oper. Temp.
(°C) |
Budgetary Price |
| max |
min |
max |
See Notes |
| MAX5742 |
12 |
4 |
Voltage- Buffered |
Ext. |
16 |
Serial - SPI |
2.7 |
5.5 |
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$7.36 @1k |
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See All Precision DACs (4-12 Bits) (268)
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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 Block 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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| MAX5742AUB
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Active |
µMAX;10 pin;15.4 mm²
Outline Drawing:21-0061 (PDF)
Land Pattern: 90-0330 (PDF)
Use pkgcode/variation: U10CN-1*
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-40°C to +125°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX5742AUB+
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Active |
µMAX;10 pin;15.4 mm²
Outline Drawing:21-0061 (PDF)
Land Pattern: 90-0330 (PDF)
Use pkgcode/variation: U10CN+1*
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-40°C to +125°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX5742AUB+T
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Active |
µMAX;10 pin;15.4 mm²
Outline Drawing:21-0061 (PDF)
Land Pattern: 90-0330 (PDF)
Use pkgcode/variation: U10CN+1*
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-40°C to +125°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX5742AUB-T
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Active |
µMAX;10 pin;15.4 mm²
Outline Drawing:21-0061 (PDF)
Land Pattern: 90-0330 (PDF)
Use pkgcode/variation: U10CN-1*
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-40°C to +125°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX5742EUB
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Active |
µMAX;10 pin;15.4 mm²
Outline Drawing:21-0061 (PDF)
Land Pattern: 90-0330 (PDF)
Use pkgcode/variation: U10CN-1*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX5742EUB+
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Active |
µMAX;10 pin;15.4 mm²
Outline Drawing:21-0061 (PDF)
Land Pattern: 90-0330 (PDF)
Use pkgcode/variation: U10CN+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX5742EUB+T
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Active |
µMAX;10 pin;15.4 mm²
Outline Drawing:21-0061 (PDF)
Land Pattern: 90-0330 (PDF)
Use pkgcode/variation: U10CN+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX5742EUB-T
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Active |
uMAX;10 pin
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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Information Index
Document Ref.: 19-2122
Rev 2;
2003-08-22
This page last modified: 2009-05-13
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