MAX1069BEUD Maxim Integrated, MAX1069BEUD Datasheet

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MAX1069BEUD

Manufacturer Part Number
MAX1069BEUD
Description
Analog to Digital Converters - ADC
Manufacturer
Maxim Integrated
Datasheet

Specifications of MAX1069BEUD

Number Of Channels
1
Architecture
SAR
Conversion Rate
58 KSPs
Resolution
14 bit
Input Type
Single-Ended
Snr
84 dB
Interface Type
I2C, Serial
Operating Supply Voltage
2.7 V to 5.25 V, 4.75 V to 5.25 V
Maximum Operating Temperature
+ 85 C
Package / Case
TSSOP-14
Maximum Power Dissipation
864 mW
Minimum Operating Temperature
- 40 C
Number Of Converters
1
Voltage Reference
4.096 V
The MAX1069 is a low-power, 14-bit successive-
approximation analog-to-digital converter (ADC). The
device features automatic power-down, an on-chip
4MHz clock, a +4.096V internal reference, and an I
compatible 2-wire serial interface capable of both fast
and high-speed modes.
The MAX1069 operates from a single supply and con-
sumes 5mW at the maximum conversion rate of
58.6ksps. AutoShutdown™ powers down the device
between conversions, reducing supply current to less
than 50µA at a 1ksps throughput rate. The option of a
separate digital supply voltage allows direct interfacing
with +2.7V to +5.5V digital logic.
The MAX1069 performs a unipolar conversion on its
single analog input using its internal 4MHz clock. The
full-scale analog input range is determined by the inter-
nal reference or by an externally applied reference volt-
age ranging from 1V to V
The four address select inputs (ADD0–ADD3) allow up
to 16 MAX1069 devices on the same bus.
The MAX1069 is packaged in a 14-pin TSSOP and
offers both commercial and extended temperature
ranges. Refer to the MAX1169 for a 16-bit device in a
pin-compatible package.
19-2652; Rev 2; 12/10
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Hand-Held Portable Applications
Medical Instruments
Battery-Powered Test Equipment
Solar-Powered Remote Systems
Receive Signal Strength Indicators
System Supervision
________________________________________________________________ Maxim Integrated Products
General Description
AVDD
.
58.6ksps, 14-Bit, 2-Wire Serial ADC
Applications
2
C-
o High-Speed I
o +4.75V to +5.25V Single Supply
o +2.7V to +5.5V Adjustable Logic Level
o Internal +4.096V Reference
o External Reference: 1V to V
o Internal 4MHz Conversion Clock
o 58.6ksps Sampling Rate
o AutoShutdown Between Conversions
o Low Power
o Small 14-Pin TSSOP Package
+ Denotes a lead(Pb)-free/RoHS-compliant package.
MAX1069AEUD+ -40°C to +85°C
MAX1069BEUD+ -40°C to +85°C
TOP VIEW
400kHz Fast Mode
1.7MHz High-Speed Mode
5.0mW at 58.6ksps
4.2mW at 50ksps
2.0mW at 10ksps
0.23mW at 1ksps
3µW in Shutdown
PART
in a 14-Pin TSSOP
DGND
DVDD
ADD2
ADD1
ADD0
2
SCL
SDA
C-Compatible Serial Interface
TEMP RANGE
1
2
3
4
5
6
7
Ordering Information
MAX1069
TSSOP
Pin Configuration
AVDD
14
13
12
11
10
9
8
PIN-
PACKAGE
14 TSSOP
14 TSSOP
ADD3
REF
REFADJ
AGNDS
AIN
AGND
AVDD
Features
(LSB)
INL
±1
±2
1

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MAX1069BEUD Summary of contents

Page 1

... Shutdown o Small 14-Pin TSSOP Package Applications PART MAX1069AEUD+ -40°C to +85°C MAX1069BEUD+ -40°C to +85°C + Denotes a lead(Pb)-free/RoHS-compliant package. TOP VIEW in a 14-Pin TSSOP Features 2 C-Compatible Serial Interface AVDD Ordering Information PIN- ...

Page 2

Serial ADC in a 14-Pin TSSOP ABSOLUTE MAXIMUM RATINGS AVDD to AGND.........................................................-0.3V to +6V DVDD to DGND ........................................................-0.3V to +6V AGND to DGND.....................................................-0.3V to +0.3V AGNDS to AGND...................................................-0.3V to +0.3V AIN, REF, REFADJ to AGND ..................-0.3V to ...

Page 3

Serial ADC ELECTRICAL CHARACTERISTICS (continued +4.75V to +5.25V +2.7V to +5.5V, f AVDD DVDD reference applied to REF, REFADJ = AVDD, C PARAMETER SYMBOL Aperture Delay (Figure 11c) (Note 6) Aperture Jitter (Figure ...

Page 4

Serial ADC in a 14-Pin TSSOP ELECTRICAL CHARACTERISTICS (continued +4.75V to +5.25V +2.7V to +5.5V, f AVDD DVDD reference applied to REF, REFADJ = AVDD, C PARAMETER SYMBOL POWER REQUIREMENTS (AVDD, AGND, DVDD, ...

Page 5

Serial ADC ELECTRICAL CHARACTERISTICS (continued +4.75V to +5.25V +2.7V to +5.5V, f AVDD DVDD reference applied to REF, REFADJ = AVDD, C PARAMETER SYMBOL TIMING CHARACTERISTICS FOR 2-WIRE HIGH-SPEED MODE (Figure 1b and ...

Page 6

Serial ADC in a 14-Pin TSSOP ELECTRICAL CHARACTERISTICS (continued +4.75V to +5.25V +2.7V to +5.5V, f AVDD DVDD reference applied to REF, REFADJ = AVDD, C Note 9: A master device must provide ...

Page 7

Serial ADC (V = +3.0V +5.0V 1.7MHz (33% duty cycle), f DVDD AVDD SCL to REF, REFADJ = AVDD 10µF, T REF ANALOG SUPPLY CURRENT vs. ANALOG SUPPLY VOLTAGE (INTERNAL REFERENCE) ...

Page 8

Serial ADC in a 14-Pin TSSOP (V = +3.0V +5.0V 1.7MHz (33% duty cycle), f DVDD AVDD SCL to REF, REFADJ = AVDD 10µF, T REF SUPPLY CURRENT vs. CONVERSION RATE ...

Page 9

Serial ADC (V = +3.0V +5.0V 1.7MHz (33% duty cycle), f DVDD AVDD SCL to REF, REFADJ = AVDD 10µF, T REF INTERNAL +4.096V REFERENCE VOLTAGE vs. ANALOG SUPPLY VOLTAGE 4.100 ...

Page 10

Serial ADC in a 14-Pin TSSOP (V = +3.0V +5.0V 1.7MHz (33% duty cycle), f DVDD AVDD SCL to REF, REFADJ = AVDD 10µF, T REF SIGNAL-TO-NOISE RATIO vs. FREQUENCY 120 ...

Page 11

Serial ADC PIN NAME 1 DGND Digital Ground 2 SCL Clock Input 3 SDA Data Input/Output 4 ADD2 Address Select Input 2 5 ADD1 Address Select Input 1 6 ADD0 Address Select Input 0 7 DVDD Digital ...

Page 12

Serial ADC in a 14-Pin TSSOP 8 AVDD 9 AGND 10 AIN 11 AGNDS 12 REFADJ 13 REF Figure 3. MAX1069 Simplified Functional Diagram 10µF ANALOG SOURCE Figure 4. Typical Application Circuit forming a digital representation of ...

Page 13

Serial ADC for f = 1.7MHz calculated with the fol- SCL SOURCE lowing equation: 2 ≤ R SOURCE × × SCL where R is the analog input source ...

Page 14

Serial ADC in a 14-Pin TSSOP SDA SCL Figure 7. START and STOP Conditions S SDA SCL Figure 8. Acknowledge Bits of a STOP condition to leave the bus active and in its current timing mode (see ...

Page 15

Serial ADC S 0 SDA 1 SCL Figure 9. MAX1069 Slave Address Byte SDA 1 2 Figure 10. F/S-Mode to HS-Mode Transfer clock cycle (Figure 10). After the not acknowledge, the MAX1069 is in ...

Page 16

Serial ADC in a 14-Pin TSSOP MASTER TO SLAVE SLAVE TO MASTER A. SINGLE CONVERSION SLAVE ADDRESS R A CLOCK STRETCH t t CONV ACQ B. CONTINUOUS CONVERSIONS ...

Page 17

Serial ADC The MAX1069 contains an internal 4.096V bandgap ref- erence. This bandgap reference is connected to REFADJ through a 5kΩ resistor. Bypass REFADJ with a 0.1µF capacitor to AGND. The MAX1069 reference buffer has a unity ...

Page 18

Serial ADC in a 14-Pin TSSOP 1...111 1...110 1...101 1...100 0...011 0...010 0...001 0...000 INPUT VOLTAGE (LSB) AGNDS Figure 14. Unipolar Transfer Function after a conversion. This allows more time for the input ...

Page 19

Serial ADC Signal-to-Noise Plus Distortion Signal-to-noise plus distortion (SINAD) is the ratio of the fundamental input frequency’s RMS amplitude to RMS equivalent of all other ADC output signals. ⎛ Signal = × SINAD ...

Page 20

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 20 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2010 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc ...

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