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, 2s Settling DAC
Ultra-Low Glitch Energy (4nV•s)
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
22A at 1ksps
0.2A at Shutdown
` Low-Power DAC: 1.5A
` Evaluation Kit Available (Order MAX1258EVKIT)ApplicationControls for Optical Components
Base-Station Control Loops
System Supervision and Control
Data-Acquisition SystemsSpecificationsAVDD 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)
36-Pin Thin QFN (6mm x 6mm)
(derate 26.3mW/ above +70).....................2105.3mW
48-Pin Thin QFN (7mm x 7mm)
(derate 26.3mW/ above +70).....................2105.3mW
Operating Temperature Range ..................-40 to +85
Storage Temperature Range ....................-60 to +150
Junction Temperature.............................................+150
Lead Temperature (soldering, 10s) .......................+300DescriptionThe MAX1020MAX1023/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 sensor 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 inputchannel versions. The octal DAC outputs settle within 2.0s, and the ADC has a 300ksps conversion rate.
The MAX1020MAX1023/MAX1057/MAX1058 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 reference, an external reference, or a combination of both.
Features such as an internal ±1 accurate temperature sensor, FIFO, scan modes, programmable internal or external clock modes, data averaging, and AutoShutdown™ allow users to minimize both power consumption and processor requirements. The low glitch energy (4nV•s) and low digital feedthrough (0.5nV•s) 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 voltage 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 22A at 1ksps throughput, and under 0.2A 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 MAX1020MAX1023 are available in 36- pin thin QFN packages. All devices are specified over the -40 to +85 temperature range.
MAX1058 Data Sheet
