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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1040 Datasheet

(MAX1040 - MAX1048) Multichannel ADCs/DACs

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MAX1040 pdf
19-3294; Rev 3; 3/08
EVAALVUAAILTAIOBNLEKIT
10-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
General Description
The MAX1040/MAX1042/MAX1046/MAX1048 integrate a
multichannel, 10-bit, analog-to-digital converter (ADC)
and a quad, 10-bit, digital-to-analog converter (DAC) in a
single IC. The devices also include a temperature sensor
and configurable general-purpose I/O ports (GPIOs) with
a 25MHz SPI™-/QSPI™-/MICROWIRE™-compatible seri-
al interface. The ADC is available in a four or an eight
input-channel version. The four DAC outputs settle within
2.0µs, and the ADC has a 225ksps conversion rate.
All devices include an internal reference (4.096V) provid-
ing a well-regulated, low-noise reference for both the
ADC and DAC. Programmable reference modes for the
ADC and DAC allow the use of an internal reference, an
external reference, or a combination of both. Features
such as an internal ±1°C accurate temperature sensor,
FIFO, scan modes, programmable internal or external
clock modes, data averaging, and AutoShutdown™ allow
users to minimize both power consumption and proces-
sor requirements. The low glitch energy (4nVs) and low
digital feedthrough (0.5nVs) of the integrated quad
DACs make these devices ideal for digital control of fast-
response closed-loop systems.
The devices are guaranteed to operate with a supply volt-
age from +4.75V to +5.25V. These devices consume
2.5mA at 225ksps throughput, only 22µA at 1ksps
throughput, and under 0.2µA in the shutdown mode. The
MAX1042/MAX1048 offer four GPIOs that can be config-
ured as inputs or outputs.
The MAX1040/MAX1042/MAX1046/MAX1048 are avail-
able in 36-pin thin QFN packages. All devices are speci-
fied over the -40°C to +85°C temperature range.
Applications
Closed-Loop Controls for Optical Components
and Base Stations
System Supervision and Control
Data-Acquisition Systems
Features
10-Bit, 225ksps ADC
Analog Multiplexer with True-Differential
Track/Hold (T/H)
Eight Single-Ended Channels or Four
Differential
Channels (Unipolar or Bipolar)
(MAX1040/MAX1042)
Four Single-Ended Channels or Two Differential
Channels (Unipolar or Bipolar)
(MAX1046/MAX1048)
Excellent Accuracy: ±0.5 LSB INL, ±0.5 LSB
DNL, No Missing Codes Over Temperature
10-Bit, Quad, 2µs Settling DAC
Ultra-Low-Glitch Energy (4nVs)
Power-Up Options from Zero Scale or Full Scale
Excellent Accuracy: ±0.5 LSB INL
Internal Reference or External Single-Ended/
Differential Reference
Internal Reference Voltage (4.096V)
Internal ±1°C Accurate Temperature Sensor
On-Chip FIFO Capable of Storing 16 ADC
Conversion Results and One Temperature Result
On-Chip Channel-Scan Mode and Internal
Data-Averaging Features
Analog Single-Supply Operation: +4.75V to +5.25V
Digital Supply: +2.7V to AVDD
25MHz, SPI/QSPI/MICROWIRE Serial Interface
AutoShutdown Between Conversions
Low-Power ADC
2.5mA at 225ksps
22µA at 1ksps
0.2µA at Shutdown
Low-Power DAC: 1.5mA
Evaluation Kit Available (Order MAX1258EVKIT)
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
Pin Configurations appear at end of data sheet.
Ordering Information/Selector Guide
PART
MAX1040BETX
MAX1042BETX
MAX1046BETX
MAX1048BETX
PIN-PACKAGE
36 Thin QFN-EP*
36 Thin QFN-EP*
36 Thin QFN-EP*
36 Thin QFN-EP*
REF
ANALOG SUPPLY RESOLUTION
VOLTAGE (V) VOLTAGE (V)
BITS**
4.096
4.096
4.75 to 5.25
4.75 to 5.25
10
10
4.096
4.75 to 5.25
10
4.096
4.75 to 5.25
10
ADC
CHANNELS
8
8
4
4
DAC
CHANNELS
4
4
4
4
GPIOs
0
4
0
4
Note: All devices are specified over the -40°C to +85°C operating temperature range.
*EP = Exposed pad.
**Number of resolution bits refers to both DAC and ADC.
________________________________________________________________ Maxim Integrated Products 1
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.
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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1040 Datasheet

(MAX1040 - MAX1048) Multichannel ADCs/DACs

No Preview Available !

MAX1040 pdf
10-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
ABSOLUTE MAXIMUM RATINGS
AVDD to AGND .........................................................-0.3V to +6V
DGND to AGND.....................................................-0.3V to +0.3V
DVDD to AVDD .......................................................-3.0V to +0.3V
Digital Inputs to DGND.............................................-0.3V to +6V
Digital Outputs to DGND .........................-0.3V to (DVDD + 0.3V)
Analog Inputs, Analog Outputs and REF_
to AGND ...............................................-0.3V to (AVDD + 0.3V)
Maximum Current into Any Pin (except AGND, DGND, AVDD,
DVDD, and OUT_) ...........................................................50mA
Maximum Current into OUT_.............................................100mA
Continuous Power Dissipation (TA = +70°C)
36-Pin Thin QFN (6mm x 6mm)
(derate 26.3mW/°C above +70°C) ..........................2105.3mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-60°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note: If the package power dissipation is not exceeded, one output at a time can be shorted to AVDD, DVDD, AGND, or DGND
indefinitely.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(AVDD = DVDD = 4.75V to 5.25V, external reference VREF = 4.096V, fCLK = 3.6MHz (50% duty cycle), TA = -40°C to +85°C, unless
otherwise noted. Typical values are at AVDD = DVDD = 5V, TA = +25°C. Outputs are unloaded, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP
ADC
DC ACCURACY (Note 1)
Resolution
10
Integral Nonlinearity
INL
±0.5
Differential Nonlinearity
DNL
±0.5
Offset Error
±0.25
Gain Error
(Note 2)
±0.025
Gain Temperature Coefficient
±1.4
Channel-to-Channel Offset
±0.1
DYNAMIC SPECIFICATIONS (10kHz sine-wave input, VIN = 4.096VP-P, 225ksps, fCLK = 3.6MHz)
Signal-to-Noise Plus Distortion
SINAD
61
MAX
±1.0
±1
±2.0
±2.0
UNITS
Bits
LSB
LSB
LSB
LSB
ppm/°C
LSB
dB
Total Harmonic Distortion
(Up to the Fifth Harmonic)
Spurious-Free Dynamic Range
Intermodulation Distortion
Full-Linear Bandwidth
Full-Power Bandwidth
CONVERSION RATE (Note 3)
THD
SFDR
IMD
fIN1 = 9.9kHz, fIN2 = 10.2kHz
SINAD > 70dB
-3dB point
External reference
-70 dBc
66 dBc
72 dBc
100 kHz
1 MHz
0.8 µs
Power-Up Time
tPU Internal reference (Note 4)
Conversion
218 clock
cycles
2 _______________________________________________________________________________________
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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1040 Datasheet

(MAX1040 - MAX1048) Multichannel ADCs/DACs

No Preview Available !

MAX1040 pdf
10-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
ELECTRICAL CHARACTERISTICS (continued)
(AVDD = DVDD = 4.75V to 5.25V, external reference VREF = 4.096V, fCLK = 3.6MHz (50% duty cycle), TA = -40°C to +85°C, unless
otherwise noted. Typical values are at AVDD = DVDD = 5V, TA = +25°C. Outputs are unloaded, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
Acquisition Time
tACQ (Note 5)
Conversion Time
Internally clocked
tCONV Externally clocked
External Clock Frequency
Duty Cycle
fCLK Externally clocked conversion (Note 5)
Aperture Delay
Aperture Jitter
ANALOG INPUTS
Input Voltage Range (Note 6)
Unipolar
Bipolar
Input Leakage Current
Input Capacitance
INTERNAL TEMPERATURE SENSOR
Measurement Error (Notes 5, 7)
TA = +25°C
TA = TMIN to TMAX
Temperature Resolution
INTERNAL REFERENCE
REF1 Output Voltage
(Note 8)
REF1 Voltage Temperature
Coefficient
TCREF
REF1 Output Impedance
REF1 Short-Circuit Current
EXTERNAL REFERENCE
VREF = 4.096V
REF1 Input Voltage Range
VREF1 REF mode 11 (Note 4)
MIN TYP MAX UNITS
0.6 µs
5.5
3.6
µs
0.1 3.6 MHz
40 60 %
30 ns
< 50
ps
0
-VREF / 2
±0.01
24
VREF
+VREF / 2
±1
V
µA
pF
±0.7
±1.0
1/8
±3.0
°C
°C/LSB
4.066
4.096
±30
6.5
0.63
4.126
V
ppm/°C
kΩ
mA
1
AVDD +
0.05
V
REF2 Input Voltage Range
(Note 4)
REF1 Input Current (Note 9)
REF2 Input Current
VREF2
IREF1
IREF2
REF mode 01
REF mode 11
VREF = 4.096V, fSAMPLE = 225ksps
Acquisition between conversions
VREF = 4.096V, fSAMPLE = 225ksps
Acquisition between conversions
1 AVDD +
0.05 V
01
40
±0.01
80
±1
µA
40
±0.01
80
±1
µA
_______________________________________________________________________________________ 3
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Part Number MAX1040
Description (MAX1040 - MAX1048) Multichannel ADCs/DACs
Maker Maxim
Total Page 30 Pages
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