MAX5223EKA+T Maxim Integrated Products, MAX5223EKA+T Datasheet

IC DAC 8BIT DUAL LP SER SOT23-8

MAX5223EKA+T

Manufacturer Part Number
MAX5223EKA+T
Description
IC DAC 8BIT DUAL LP SER SOT23-8
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX5223EKA+T

Settling Time
50µs
Number Of Bits
8
Data Interface
Serial
Number Of Converters
2
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-8
Number Of Dac Outputs
2
Resolution
8 bit
Interface Type
Serial (SPI)
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Maximum Power Dissipation
696 mW
Minimum Operating Temperature
- 40 C
Supply Current
150 uA
Voltage Reference
External
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power Dissipation (max)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
MAX5223EKA+T
The MAX5223 contains two 8-bit, buffered, voltage out-
put digital-to-analog converters (DAC A and DAC B) in a
small 8-pin SOT23 package. DAC outputs can source
and sink 1mA to within 100mV of ground and V
MAX5223 operates with a single +2.7V to +5.5V supply.
The device uses a 3-wire serial interface, which oper-
ates at clock rates up to 25MHz and is compatible with
SPI™, QSPI™, and MICROWIRE™ interface standards.
The serial input shift register is 16 bits long and con-
sists of 8 bits of DAC input data and 8 bits for DAC
selection and shutdown control. DAC registers can be
loaded independently or in parallel at the positive edge
of CS.
The MAX5223’s ultra-low power consumption and tiny
8-pin SOT23 package make it ideal for portable and
battery-powered applications. Supply current is a low
100µA and drops below 1µA in shutdown mode. In
addition, the reference input is disconnected from the
REF pin during shutdown, which reduces the system’s
total power consumption.
________________________Applications
19-1895; Rev 0; 1/01
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
TOP VIEW
Digital Gain and Offset Adjustment
Programmable Current Source
Programmable Voltage Source
Power Amp Bias Control
VCO Tuning
SCLK
GND
V
CS
DD
________________________________________________________________ Maxim Integrated Products
1
2
3
4
Low-Power, Dual, 8-Bit, Voltage Output
General Description
SOT23-8
MAX5223
Pin Configuration
8
7
6
5
DIN
REF
OUTB
OUTA
DD
. The
Serial DAC in 8-Pin SOT23
MAX5223EKA-T
SCLK
Tiny 8-Pin SOT23 Package (3mm
Low Power Consumption
+2.7V to +5.5V Single-Supply Operation
Dual Buffered Voltage Output
Programmable Shutdown Mode
25MHz, 3-Wire Serial Interface
SPI, QSPI, and MICROWIRE-Compatible
CS
4
1
100µA Operating Current
<1µA Shutdown Current
PART
8
DIN
0.22 F
LATCH
LATCH
DAC
DAC
TEMP. RANGE
-40°C to +85°C
A
B
3
Ordering Information
2
V
Functional Diagram
DD
GND
7
DAC A
DAC B
REF
MAX5223
0.1 F
(OPTIONAL)
8 SOT23
PIN-PACKAGE
3mm)
Features
OUTA
OUTB
5
6
V
V
OUTA
OUTB
1

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MAX5223EKA+T Summary of contents

Page 1

... SCLK SOT23-8 SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp. ________________________________________________________________ Maxim Integrated Products For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Serial DAC in 8-Pin SOT23 Tiny 8-Pin SOT23 Package (3mm Low Power Consumption 100µ ...

Page 2

Low-Power, Dual, 8-Bit, Voltage Output Serial DAC in 8-Pin SOT23 ABSOLUTE MAXIMUM RATINGS V to GND ............................................................. -0.3V to +6V DD All Other Pins to GND (Note 1).................. -0. Continuous Power Dissipation (T = +70°C) A 8-Pin SOT23 ...

Page 3

Low-Power, Dual, 8-Bit, Voltage Output ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.5V, REF = PARAMETER SYMBOL DYNAMIC PERFORMANCE Voltage Output Slew Rate Voltage Output Settling Time Digital Feedthrough and Crosstalk POWER SUPPLY Supply ...

Page 4

Low-Power, Dual, 8-Bit, Voltage Output Serial DAC in 8-Pin SOT23 __________________________________________Typical Operating Characteristics (V = +3V +25°C, unless otherwise noted OUTPUT VOLTAGE vs. OUTPUT SOURCE CURRENT 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 0.001 0.01 ...

Page 5

Low-Power, Dual, 8-Bit, Voltage Output (V = +3V +25°C, unless otherwise noted LARGE-SIGNAL OUTPUT STEP RESPONSE 10 s/div +3V REF 10k , C = 100pF L L POWER-UP OUTPUT ...

Page 6

Low-Power, Dual, 8-Bit, Voltage Output Serial DAC in 8-Pin SOT23 (V = +3V +25°C, unless otherwise noted ______________________________________________________________Pin Description PIN NAME – — – Chip Select. Active-Low. Enables data to be shifted into the 16-bit shift ...

Page 7

Low-Power, Dual, 8-Bit, Voltage Output Detailed Description The MAX5223 contains two 8-bit, voltage output DACs. The DACs are “inverted” R-2R ladder networks. They use complementary switches that convert 8-bit digital inputs into equivalent analog output voltages in propor- tion to ...

Page 8

Low-Power, Dual, 8-Bit, Voltage Output Serial DAC in 8-Pin SOT23 in starting with UB1 (uncommitted bit), followed by the remaining control bits and the data byte. The least sig- nificant bit (LSB) of the data byte (D0) is the last ...

Page 9

Low-Power, Dual, 8-Bit, Voltage Output Table 2. Serial-Interface Programming Commands CONTROL UB1 UB2 UB3 SB SA UB4 ...

Page 10

Low-Power, Dual, 8-Bit, Voltage Output Serial DAC in 8-Pin SOT23 CS t CSS t CH SCLK DIN Figure 3. Detailed Serial-Interface Timing Diagram Applications Information The MAX5223 is specified for single-supply operation with V ranging from ...

Page 11

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________11 © 2001 Maxim Integrated Products ...

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