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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1049 Datasheet

(MAX1040 - MAX1049) Multichannel ADCs/DACs

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MAX1049 pdf
19-3294; Rev 1; 8/04
EVAALVUAAILTAIOBNLEKIT
10-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
General Description
The MAX1040–MAX1043/MAX1046–MAX1049 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 4 or an 8 input-
channel version. The four DAC outputs settle within 2.0µs,
and the ADC has a 300ksps conversion rate.
All devices include an internal reference (2.5V or 4.096V)
providing 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 +2.7V to +3.6V (MAX1041/MAX1043/MAX1047/
MAX1049) and from +4.75V to +5.25V (MAX1040/
MAX1042/MAX1046/MAX1048). These devices consume
2.5mA at 300ksps throughput, only 22µA at 1ksps
throughput, and under 0.2µA in the shutdown mode. The
MAX1042/MAX1043/MAX1048/MAX1049 offer four GPIOs
that can be configured as inputs or outputs.
The MAX1040–MAX1043/MAX1046–MAX1049 are avail-
able in 36-pin thin QFN packages. All devices are speci-
fied over the -40°C to +85°C temperature range.
Features
10-Bit, 300ksps ADC
Analog Multiplexer with True-Differential
Track/Hold (T/H)
8 Single-Ended Channels or 4 Differential
Channels (Unipolar or Bipolar)
4 Single-Ended Channels or 2 Differential
Channels (Unipolar or Bipolar)
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 2.5V or 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
+2.7V to +3.6V or +4.75V to +5.25V
25MHz, SPI/QSPI/MICROWIRE Serial Interface
AutoShutdown Between Conversions
Low-Power ADC
2.5mA at 300ksps
22µA at 1ksps
0.2µA at Shutdown
Low-Power DAC: 1.5µA
Evaluation Kit Available (Order MAX1258EVKIT)
Applications
Closed-Loop Controls for Optical Components
and Base Stations
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.
System Supervision and Control
Data-Acquisition Systems
Ordering Information/Selector Guide
PART
TEMP RANGE
PIN-PACKAGE
REF
VOLTAGE
(V)
ANALOG
SUPPLY
VOLTAGE (V)
RESOLUTION
BITS***
ADC
CHANNELS
DAC
CHANNELS
GPIOs
MAX1040BETX -40°C to +85°C 36 Thin QFN-EP** 4.096 4.75 to 5.25
10
8 40
MAX1041BETX* -40°C to +85°C 36 Thin QFN-EP** 2.5
2.7 to 3.6
10
8 40
MAX1042BETX -40°C to +85°C 36 Thin QFN-EP** 4.096 4.75 to 5.25
10
8 44
MAX1043BETX* -40°C to +85°C 36 Thin QFN-EP**
*Future product—contact factory for availability.
**EP = Exposed pad.
***Number of resolution bits refers to both DAC and ADC.
2.5
2.7 to 3.6
10
8 44
Ordering Information/Selector Guide continued on last page.
Pin Configurations appear at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas 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

MAX1049 Datasheet

(MAX1040 - MAX1049) Multichannel ADCs/DACs

No Preview Available !

MAX1049 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 = 2.7V to 3.6V (MAX1041/MAX1043/MAX1047/MAX1049), external reference VREF = 2.5V (MAX1041/MAX1043/
MAX1047/MAX1049), AVDD = DVDD = 4.75V to 5.25V (MAX1040/MAX1042/MAX1046/MAX1048), external reference VREF = 4.096V
(MAX1040/MAX1042/MAX1046/MAX1048), fSCLK = 4.8MHz (50% duty cycle), TA = -40°C to +85°C, unless otherwise noted. Typical
values are at AVDD = DVDD = 3V (MAX1041/MAX1043/MAX1047/MAX1049), AVDD = DVDD = 5V (MAX1040/MAX1042/
MAX1046/MAX1048), TA = +25°C. Outputs are unloaded, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
ADC
DC ACCURACY (Note 1)
Resolution
10 Bits
Integral Nonlinearity
INL
±0.5
±1.0
LSB
Differential Nonlinearity
DNL
±0.5
±1
LSB
Offset Error
±0.25 ±2.0
LSB
Gain Error
(Note 2)
±0.025 ±2.0
LSB
Gain Temperature Coefficient
±1.4
ppm/°C
Channel-to-Channel Offset
±0.1
LSB
DYNAMIC SPECIFICATIONS (10kHz sine wave input, VIN = 2.5VP-P (MAX1041/MAX1043/MAX1047/MAX1049), VIN = 4.096VP-P
(MAX1040/MAX1042/MAX1046/MAX1048), 300ksps, fSCLK = 4.8MHz)
Signal-to-Noise Plus Distortion
SINAD
61 dB
Total Harmonic Distortion
(Up to the Fifth Harmonic)
THD
-70 dBc
Spurious-Free Dynamic Range
Intermodulation Distortion
Full-Linear Bandwidth
Full-Power Bandwidth
CONVERSION RATE (Note 3)
SFDR
IMD
fIN1 = 9.9kHz, fIN2 = 10.2kHz
SINAD > 70dB
-3dB point
External reference
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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Part Number MAX1049
Description (MAX1040 - MAX1049) Multichannel ADCs/DACs
Maker Maxim
Total Page 30 Pages
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