MAX5550ETE+ Maxim Integrated Products, MAX5550ETE+ Datasheet

IC DAC 10BIT DUAL 30MA 16-TQFN

MAX5550ETE+

Manufacturer Part Number
MAX5550ETE+
Description
IC DAC 10BIT DUAL 30MA 16-TQFN
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX5550ETE+

Settling Time
30µs
Number Of Bits
10
Data Interface
Serial
Number Of Converters
2
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-TQFN Exposed Pad
Conversion Rate
10 MSPs
Resolution
10 bit
Interface Type
Serial (SPI, I2C)
Supply Voltage (max)
5.25 V
Supply Voltage (min)
2.7 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Supply Current
6 mA
Voltage Reference
Internal
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power Dissipation (max)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
The MAX5550 dual, 10-bit, digital-to-analog converter
(DAC) features high-output-current capability. The
MAX5550 sources up to 30mA per DAC, making it ideal
for PIN diode biasing applications. Outputs can also be
paralleled for high-current applications (up to 60mA
typ). Operating from a single +2.7V to +5.25V supply,
the MAX5550 typically consumes 1.5mA per DAC in
normal operation and less than 1µA (max) in shutdown
mode. The MAX5550 also features low output leakage
current in shutdown mode (±1µA max) that is essential
to ensure that the external PIN diodes are off.
Additional features include an integrated +1.25V
bandgap reference, and a control amplifier to ensure
high accuracy and low-noise performance. A separate
reference input (REFIN) allows for the use of an external
reference source, such as the MAX6126, for improved
gain accuracy. A pin-selectable I
serial interface provides optimum flexibility for the
MAX5550. The maximum programmable output current
value is set using software and an adjustment resistor.
The MAX5550 is available in a (3mm x 3mm) 16-pin thin
QFN package, and is specified over the extended
(-40°C to +85°C) temperature range.
19-3871; Rev 2; 5/06
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.
SPI is a trademark of Motorola, Inc.
Pin Configuration appears at end of data sheet.
PIN Diode Biasing
RF Attenuator Control
VCO Tuning
________________________________________________________________ Maxim Integrated Products
General Description
Dual, 10-Bit, Programmable, 30mA
2
C-/SPI™-compatible
Applications
High-Output-Current DAC
♦ Pin-Selectable I
♦ Guaranteed Low Output Leakage Current in
♦ Guaranteed Monotonic over Extended
♦ Dual Outputs for Balanced Systems
♦ Current Outputs Source Up to 30mA per DAC
♦ Parallelable Outputs for 60mA Applications
♦ Output Stable with RF Filters
♦ Internal or External Reference Capability
♦ Digital Output (DOUT) Available for Daisy
♦ +2.7V to +5.25V Single-Supply Operation
♦ 16-Pin (3mm x 3mm) Thin QFN Package
♦ Programmable Output Current Range Set by
*EP = Exposed paddle.
Note: Device is specified over the -40°C to +85°C operating
range.
M AX 5550E TE 16 Thi n Q FN - E P *
SPI/I2C
Shutdown (±1µA max)
Temperature Range
Chaining in SPI Mode
Software and Adjustment Resistor
PART
SCLK/SCL
DAC REGISTER A
16-BIT INPUT REGISTER
+1.25V
REF
DIN/SDA
PIN-PACKAGE
MAX5550
DAC REGISTER B
CS/A0
BUFFER
REFIN
2
DOUT/A1
C- or SPI-Compatible Interface
Ordering Information
10-BIT CURRENT-STEERING
10-BIT CURRENT-STEERING
Functional Diagram
DAC B
DAC A
GND
T1633F-3
CODE
PKG
Features
V
DD
V
DD
P
MARK
P
TOP
ACZ
FSADJA
OUTB
OUTA
FSADJB
1

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MAX5550ETE+ Summary of contents

Page 1

... PIN Diode Biasing RF Attenuator Control VCO Tuning SPI is a trademark of Motorola, Inc. Pin Configuration appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products 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. High-Output-Current DAC ♦ Pin-Selectable I ♦ ...

Page 2

Dual, 10-Bit, Programmable, 30mA High-Output-Current DAC ABSOLUTE MAXIMUM RATINGS V to GND .............................................................-0.3V to +6V DD OUTA, OUTB to GND .................................-0. CS/AO, DOUT/AI, SPI/I2C, FSADJA, REFIN, FSADJB to GND ......................................-0. SCLK/SCL, DIN/SDA ................................................-0.3V to +6V Continuous ...

Page 3

Dual, 10-Bit, Programmable, 30mA ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.25V, GND = -40°C to +85°C, unless otherwise noted. Typical values are at V SCLK/SCL A PARAMETER SYMBOL Digital-to-Analog Glitch Impulse ...

Page 4

Dual, 10-Bit, Programmable, 30mA High-Output-Current DAC ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.25V, GND = REFIN -40°C to +85°C, unless otherwise noted. Typical values are at V SCLK/SCL A PARAMETER SYMBOL ...

Page 5

Dual, 10-Bit, Programmable, 30mA (V = +3.0V, GND = +1.25V, internal reference REFIN INL vs. CODE 2.0 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 -2.0 0 128 256 384 512 640 768 896 1024 CODE ...

Page 6

Dual, 10-Bit, Programmable, 30mA High-Output-Current DAC (V = +3.0V, GND = +1.25V, internal reference REFIN GLITCH IMPULSE 40ns/div SHUTDOWN CURRENT vs. TEMPERATURE 620 NO LOAD, CODE = 0x00 520 420 V ...

Page 7

Dual, 10-Bit, Programmable, 30mA (V = +3.0V, GND = +1.25V, internal reference REFIN SUPPLY CURRENT vs. SUPPLY VOLTAGE 2.80 NO LOAD, CODE = 0x00 2.75 INTERNAL REFERENCE 2.70 2.65 EXTERNAL REFERENCE 2.60 2.5 3.0 3.5 ...

Page 8

Dual, 10-Bit, Programmable, 30mA High-Output-Current DAC PIN NAME SCLK/SC 1 Serial Clock Input. Connect SCL DIN/SDA Serial Data Input. Connect SDA to V Chip-Select Input in SPI Mode/Address Select CS/ GND to ...

Page 9

Dual, 10-Bit, Programmable, 30mA Compatibility (SPI/ The MAX5550 is compatible with existing I (Figure 2). SCL and SDA are high-impedance inputs; SDA has an open-drain output that pulls the data line low during the ninth clock pulse. ...

Page 10

Dual, 10-Bit, Programmable, 30mA High-Output-Current DAC S t RDA SDA t FDA t HD:DAT t t SU:STA HD:STA SCL t RCL t HIGH 2 Figure Serial-Interface Timing Diagram Early STOP Conditions The MAX5550 recognizes a STOP condition ...

Page 11

Dual, 10-Bit, Programmable, 30mA S SDA SCL Figure 5. Acknowledge Condition Table 3. Write Operation S T ADDRESS A BYTE Master SDA Slave SDA *Read operation not ...

Page 12

Dual, 10-Bit, Programmable, 30mA High-Output-Current DAC CSO CSS SCLK MSB DIN t CSE DOUT Figure 6. SPI-Interface Timing Diagram CS SCLK DIN Figure 7. SPI-Interface Format Applications ...

Page 13

Dual, 10-Bit, Programmable, 30mA Table 4. Command Summary SERIAL DATA INPUT ...

Page 14

Dual, 10-Bit, Programmable, 30mA High-Output-Current DAC DIN(0) CONTROLLER SCLK DEVICE CS DIN(1) SCLK CS DIN(2) SCLK CS Figure 8. Daisy-Chain Configuration Power Sequencing Ensure that the voltage applied to REFIN does not exceed V at any time. If proper power ...

Page 15

... 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 _____________________ 1 © 2006 Maxim Integrated Products ...

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