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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1023 Datasheet

10-Bit / Multichannel ADCs/DACs with FIFO / Temperature Sensing / and GPIO Ports

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MAX1023 pdf
19-3280; Rev 2; 8/04
EVAALVUAAILTAIOBNLEKIT
10-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
General Description
The MAX1020–MAX1023/MAX1057/MAX1058 integrate a
multichannel, 10-bit, analog-to-digital converter (ADC)
and an octal, 10-bit, digital-to-analog converter (DAC) in a
single IC. These devices also include a temperature sen-
sor and configurable general-purpose I/O ports (GPIOs)
with a 25MHz SPI™-/QSPI™-/MICROWIRE™-compatible
serial interface. The ADC is available in 8/12/16 input-
channel versions. The octal 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 the DAC allow the use of an internal refer-
ence, 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 con-
sumption and processor requirements. The low glitch
energy (4nVs) and low digital feedthrough (0.5nVs) of
the integrated octal 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 (MAX1021/MAX1023/MAX1057)
and from +4.75V to +5.25V (MAX1020/MAX1022/
MAX1058). The devices consume 2.5mA at 300ksps
throughput, only 22µA at 1ksps throughput, and under
0.2µA in the shutdown mode. The MAX1057/MAX1058
feature 12 GPIOs, while the MAX1020/MAX1021 offer 4
GPIOs that can be configured as inputs or outputs.
The MAX1057/MAX1058 are available in 48-pin thin QFN
packages. The MAX1020–MAX1023 are available in 36-
pin thin QFN packages. All devices are specified over the
-40°C to +85°C temperature range.
Applications
Controls for Optical Components
Base-Station Control Loops
System Supervision and Control
Data-Acquisition Systems
Features
10-Bit, 300ksps ADC
Analog Multiplexer with True-Differential
Track/Hold (T/H)
16 Single-Ended Channels or 8 Differential
Channels (Unipolar or Bipolar)
12 Single-Ended Channels or 6 Differential
Channels (Unipolar or Bipolar)
8 Single-Ended Channels or 4 Differential
Channels (Unipolar or Bipolar)
Excellent Accuracy: ±0.5 LSB INL, ±0.5 LSB DNL
10-Bit, Octal, 2µs Settling DAC
Ultra-Low Glitch Energy (4nVs)
Power-Up Options from Zero Scale or Full Scale
Excellent Accuracy: ±1 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)
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.
Ordering Information/Selector Guide
PART
TEMP RANGE
PIN-PACKAGE
REF
VOLTAGE
(V)
ANALOG
SUPPLY
VOLTAGE (V)
RESOLUTION
BITS***
ADC
DAC
CHANNELS CHANNELS
GPIOs
MAX1020BETX -40°C to +85°C 36 Thin QFN-EP** 4.096
4.75 to 5.25
10
8 84
MAX1021BETX* -40°C to +85°C 36 Thin QFN-EP** 2.5
2.7 to 3.6
10
8 84
MAX1022BETX* -40°C to +85°C 36 Thin QFN-EP** 4.096
4.75 to 5.25
10
12 8 0
MAX1023BETX* -40°C to +85°C 36 Thin QFN-EP** 2.5
2.7 to 3.6
10
12 8 0
MAX1057BETM -40°C to +85°C 48 Thin QFN-EP** 2.5
2.7 to 3.6
10
16 8 12
MAX1058BETM -40°C to +85°C 48 Thin QFN-EP** 4.096
*Future product—contact factory for availability.
**EP = Exposed pad.
***Number of resolution bits refers to both DAC and ADC.
4.75 to 5.25
10
16 8
Pin Configurations appear at end of data sheet.
12
________________________________________________________________ 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.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1023 Datasheet

10-Bit / Multichannel ADCs/DACs with FIFO / Temperature Sensing / and GPIO Ports

No Preview Available !

MAX1023 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
48-Pin Thin QFN (7mm x 7mm)
(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 may 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 (MAX1021/MAX1023/MAX1057), external reference VREF = 2.5V (MAX1021/MAX1023/MAX1057), AVDD =
DVDD = 4.75V to 5.25V (MAX1020/MAX1022/MAX1058), external reference VREF = 4.096V (MAX1020/MAX1022/MAX1058), fSCLK = 4.8MHz
(50% duty cycle), TA = -40°C to +85°C, unless otherwise noted. Typical values are at AVDD = DVDD = 3V (MAX1021/MAX1023/MAX1057),
AVDD = DVDD = 5V (MAX1020/MAX1022/MAX1058), TA = +25°C. Outputs are unloaded, unless otherwise noted.)
PARAMETER
DC ACCURACY (Note 1)
Resolution
Integral Nonlinearity
Differential Nonlinearity
Offset Error
Gain Error
Gain Temperature Coefficient
Channel-to-Channel Offset
SYMBOL
INL
DNL
(Note 2)
CONDITIONS
ADC
MIN
TYP
MAX
UNITS
10 Bits
±0.5 ±1.0
LSB
±0.5 ±1.0
LSB
±0.25 ±2.0
LSB
±0.025 ±2.0
LSB
±1.4
ppm/°C
±0.1
LSB
DYNAMIC SPECIFICATIONS (10kHz sine wave input, VIN = 2.5VP-P (MAX1021/MAX1023/MAX1057), VIN = 4.096VP-P
(MAX1020/MAX1022/MAX1058), 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 _______________________________________________________________________________________


Part Number MAX1023
Description 10-Bit / Multichannel ADCs/DACs with FIFO / Temperature Sensing / and GPIO Ports
Maker Maxim
Total Page 30 Pages
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