MAX1220BETX ,4.096 V, 12-bit, multichannel ADC/DAC with FIFO, temperature sensing, and GPIO portELECTRICAL CHARACTERISTICS(AV = DV = 2.7V to 3.6V (MAX1221/MAX1223/MAX1257), external reference V = ..
MAX1220BETX+ ,12-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO PortsElectrical Characteristics(V = V = 2.7V to 3.6V (MAX1257), external reference V = 2.5V (MAX1257), V ..
MAX1220BETX+ ,12-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO PortsFeaturesThe MAX1220/MAX1257/MAX1258 is a highly integrat- • Reduce Parts Count and Board Space with ..
MAX1221BETX ,2.5 V, 12-bit, multichannel ADC/DAC with FIFO, temperature sensing, and GPIO portFeaturesThe MAX1220–MAX1223/MAX1257/MAX1258 integrate a ♦ 12-Bit, 300ksps ADC12-bit, multichannel, ..
MAX1226BEEE+ ,12-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal ReferenceELECTRICAL CHARACTERISTICS(V = +5V ±5%, f = 300kHz, f = 4.8MHz (50% duty cycle), V = 4.096V, T = T ..
MAX1228BCEP+ ,12-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal ReferenceFeaturesThe MAX1226/MAX1228/MAX1230 are serial 12-bit ana-♦ Internal Temperature Sensor (±0.7°C Acc ..
MAX351CSE ,Precision, Quad, SPST Analog Switches
MAX351CSE ,Precision, Quad, SPST Analog Switches
MAX351CSE+ ,Precision, Quad, SPST Analog Switches
MAX351ESE ,Precision, Quad, SPST Analog Switches
MAX351ESE ,Precision, Quad, SPST Analog Switches
MAX351ESE+ ,Precision, Quad, SPST Analog Switches
MAX1220BETX-MAX1221BETX-MAX1257BETM-MAX1258BETM
4.096 V, 12-bit, multichannel ADC/DAC with FIFO, temperature sensing, and GPIO port
General DescriptionThe MAX1220–MAX1223/MAX1257/MAX1258 integrate a
12-bit, multichannel, analog-to-digital converter (ADC),
and a 12-bit, octal, 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) for both the ADC and DAC. Programmable ref-
erence modes 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 power consumption and proces-
sor 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 volt-
age from +2.7V to +3.6V (MAX1221/MAX1223/MAX1257)
and from +4.75V to +5.25V (MAX1220/MAX1222/
MAX1258). These devices consume 2.5mA at 300ksps
throughput, only 22µA at 1ksp throughput, and under
0.2µA in the shutdown mode. The MAX1257/MAX1258
feature 12 GPIOs, while the MAX1220/MAX1221 offer 4
GPIOs that can be configured as inputs or outputs.
The MAX1220–MAX1223 are available in 36-pin thin
QFN packages. The MAX1257/MAX1258 are available
in 48-pin thin QFN packages. All devices are specified
over the -40°C to +85°C temperature range.
ApplicationsControls for Optical Components
Base-Station Control Loops
System Supervision and Control
Data-Acquisition Systems
Features12-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 DNL12-Bit, Octal, 2µs Settling DAC
Ultra-Low Glitch Energy (4nV•s)
Power-Up Options from Zero Scale or Full Scale
Excellent Accuracy: ±0.5 LSB INLInternal Reference or External Single-Ended/
Differential Reference
Internal Reference Voltage 2.5V or 4.096VInternal ±1°C Accurate Temperature SensorOn-Chip FIFO Capable of Storing 16 ADC
Conversion Results and One Temperature ResultOn-Chip Channel-Scan Mode and Internal
Data-Averaging FeaturesAnalog Single-Supply Operation
+2.7V to +3.6V or +4.75V to +5.25V25MHz, SPI/QSPI/MICROWIRE Serial InterfaceAutoShutdown Between ConversionsLow-Power ADC
2.5mA at 300ksps
22µA at 1ksps
0.2µA at ShutdownLow-Power DAC: 1.5µAEvaluation Kit Available (Order MAX1258EVKIT)
MAX1220–MAX1223/MAX1257/MAX1258
12-Bit, Multichannel ADCs/DACs with FIFO,emperature Sensing, and GPIO Ports19-3295; Rev 2; 8/04
*Future product—contact factory for availability.
**EP = Exposed pad.
***Number of resolution bits refers to both DAC and ADC.
Pin Configurations appear at end of data sheet.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
MAX1220–MAX1223/MAX1257/MAX1258
12-Bit, Multichannel ADCs/DACs with FIFO,emperature Sensing, and GPIO Ports
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS(AVDD= DVDD= 2.7V to 3.6V (MAX1221/MAX1223/MAX1257), external reference VREF= 2.5V (MAX1221/MAX1223/MAX1257), AVDD=
DVDD= 4.75V to 5.25V (MAX1220/MAX1222/MAX1258), external reference VREF= 4.096V (MAX1220/MAX1222/MAX1258), fSCLK = 4.8MHz
(50% duty cycle), TA = -40°C to +85°C, unless otherwise noted. Typical values are at AVDD= DVDD= 3V (MAX1221/MAX1223/MAX1257),
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.
AVDDto AGND.........................................................-0.3V to +6V
DGND to AGND.....................................................-0.3V to +0.3V
DVDDto 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
40-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.
MAX1220–MAX1223/MAX1257/MAX1258
12-Bit, Multichannel ADCs/DACs with FIFO,emperature Sensing, and GPIO Ports
ELECTRICAL CHARACTERISTICS (continued)(AVDD= DVDD= 2.7V to 3.6V (MAX1221/MAX1223/MAX1257), external reference VREF= 2.5V (MAX1221/MAX1223/MAX1257), AVDD=
DVDD= 4.75V to 5.25V (MAX1220/MAX1222/MAX1258), external reference VREF= 4.096V (MAX1220/MAX1222/MAX1258), fSCLK = 4.8MHz
(50% duty cycle), TA = -40°C to +85°C, unless otherwise noted. Typical values are at AVDD= DVDD= 3V (MAX1221/MAX1223/MAX1257),
AVDD= DVDD= 5V (MAX1220/MAX1222/MAX1258), TA= +25°C. Outputs are unloaded, unless otherwise noted.)
MAX1220–MAX1223/MAX1257/MAX1258
12-Bit, Multichannel ADCs/DACs with FIFO,emperature Sensing, and GPIO Ports
ELECTRICAL CHARACTERISTICS (continued)(AVDD= DVDD= 2.7V to 3.6V (MAX1221/MAX1223/MAX1257), external reference VREF= 2.5V (MAX1221/MAX1223/MAX1257), AVDD=
DVDD= 4.75V to 5.25V (MAX1220/MAX1222/MAX1258), external reference VREF= 4.096V (MAX1220/MAX1222/MAX1258), fSCLK = 4.8MHz
(50% duty cycle), TA = -40°C to +85°C, unless otherwise noted. Typical values are at AVDD= DVDD= 3V (MAX1221/MAX1223/MAX1257),
MAX1220–MAX1223/MAX1257/MAX1258
12-Bit, Multichannel ADCs/DACs with FIFO,emperature Sensing, and GPIO Ports
ELECTRICAL CHARACTERISTICS (continued)(AVDD= DVDD= 2.7V to 3.6V (MAX1221/MAX1223/MAX1257), external reference VREF= 2.5V (MAX1221/MAX1223/MAX1257), AVDD=
DVDD= 4.75V to 5.25V (MAX1220/MAX1222/MAX1258), external reference VREF= 4.096V (MAX1220/MAX1222/MAX1258), fSCLK = 4.8MHz
(50% duty cycle), TA = -40°C to +85°C, unless otherwise noted. Typical values are at AVDD= DVDD= 3V (MAX1221/MAX1223/MAX1257),
