19-1844; Rev 1; 4/01
KIT
ATION
EVALU
BLE
AVAILA
+3V/+5V, Low-Power, 8-Bit Octal DACs
with Rail-to-Rail Output Buffers
General Description
The MAX5258/MAX5259 are +3V/+5V single-supply,
digital serial-input, voltage-output, 8-bit octal digital-to-
analog converters (DACs). Internal precision buffers
swing Rail-to-Rail
®
, and the reference input range
extends from ground to the positive supply. The +5V
(MAX5258) and the +3V (MAX5259) feature a 10µA
(max) shutdown mode.
The serial interface is double-buffered. A 16-bit input
shift register is followed by eight 8-bit input registers
and eight 8-bit DAC registers. The 16-bit serial word
consists of two “don’t care” bits, three address bits,
three control bits, and eight data bits. The input and
DAC registers can both be updated independently or
simultaneously with a single software command. The
asynchronous control input (LDAC) provides simultane-
ous updating of all eight DAC registers.
The interface is compatible with SPI™, QSPI™ (CPOL =
CPHA = 0 or CPOL = CPHA = 1), and MICROWIRE™.
A buffered digital data output allows daisy-chaining of
serial devices.
The MAX5258/MAX5259 are available in a 16-pin QSOP
package.
♦
Low Supply Current: 1.3mA
♦
Low-Power Shutdown Mode
0.24µA (MAX5259)
0.45µA (MAX5258)
♦
±1LSB DNL (max)
♦
±1LSB INL (max)
♦
Ground to V
DD
Reference Input Range
♦
Output Buffer Amplifiers Swing Rail-to-Rail
♦
10MHz Serial Interface, SPI, QSPI (CPOL = CPHA
= 0 or CPOL = CPHA = 1), and MICROWIRE-
Compatible
♦
Double-Buffered Registers for Synchronous
Updating
♦
Serial Data Output for Daisy-Chaining
♦
Ultra-Small 16-Pin QSOP Package
Features
♦
+2.7V to +5.5V Single-Supply Operation
MAX5258/MAX5259
________________________Applications
Digital Gain and Offset Adjustment
Programmable Attenuators
Programmable Current Sources
Portable Instruments
PART
Ordering Information
SUPPLY
TEMP. RANGE PIN-PACKAGE VOLTAGE
(V)
16 QSOP
16 QSOP
+5.0
+3.0
o
o
MAX5258EEE
-40
o
C to +85
o
C
MAX5259EEE
-40 C to +85 C
Pin Configuration
TOP VIEW
OUTB 1
OUTA 2
GND 3
V
DD
4
REF 5
LDAC 6
16 OUTC
15 OUTD
14 DOUT
MAX5258
MAX5259
13 DIN
12 SCLK
11 CS
10 OUTH
9
OUTG
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
OUTE 7
OUTF 8
QSOP
1
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
+3V/+5V, Low-Power, 8-Bit Octal DAC
with Rail-to-Rail Output Buffers
MAX5258/MAX5259
ABSOLUTE MAXIMUM RATINGS
V
DD
to GND ..............................................................-0.3V to +6V
DIN, DOUT,
CS,
SCLK,
LDAC
to GND.....................-0.3V to +6V
REF to GND ................................................-0.3V to (V
DD
+ 0.3V)
OUT_ to GND ...........................................................-0.3V to V
DD
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (T
A
= +70°C)
16-Pin Plastic QSOP (derate 8.3mW/°C about +70°C)...667mW
Operating Temperature Range ..........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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 (MAX5258)
(V
DD
= +4.5V to +5.5V, V
REF
= +4.096V, GND = 0, R
L
= 10kΩ, C
L
= 100pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical
values are at V
DD
= +5V and T
A
= +25°C.)
PARAMETER
STATIC ACCURACY
Resolution
Integral Nonlinearity (Note 1)
Differential Nonlinearity (Note 1)
Zero-Code Error
Zero-Code Error Supply
Rejection
Zero-Code Temperature
Coefficient
Full-Scale Error
Full-Scale Error Supply Rejection
Full-Scale Temperature
Coefficient
REFERENCE INPUTS
Input Voltage Range
Input Resistance
Input Capacitance
DAC OUTPUTS
Output Voltage Swing
Output Voltage Range
DIGITAL INPUTS
Input High Voltage
Input Low Voltage
V
IH
V
IL
0.7
✕
V
DD
0.3
✕
V
DD
V
V
R
L
= 10kΩ to GND
R
L
= 10kΩ to GND
0
0
V
DD
-
0.3
V
REF
V
V
0
161
230
20
V
DD
300
V
kΩ
pF
INL
DNL
ZCE
Guaranteed monotonic (all codes)
Code = 0A hex
Code = 0A hex
Code = 0A hex
Code = FF hex
Code = FF hex
Code = FF hex
8
±0.1
±0.05
±2.5
0.02
±10
±1
0.25
±10
±30
1
±1
±1
±20
1
Bits
LSB
LSB
mV
LSB
µV/
o
C
mV
LSB
µV/
o
C
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
2
_______________________________________________________________________________________
+3V/+5V, Low-Power, 8-Bit Octal DAC
with Rail-to-Rail Output Buffers
ELECTRICAL CHARACTERISTICS (MAX5258) (continued)
(V
DD
= +4.5V to +5.5V, V
REF
= +4.096V, GND = 0, R
L
= 10kΩ, C
L
= 100pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical
values are at V
DD
= +5V and T
A
= +25°C.)
PARAMETER
Input Current
Input Capacitance
DIGITAL OUTPUTS
Output High Voltage
Output Low Voltage
DYNAMIC PERFORMANCE
Voltage-Output Slew Rate
Output Settling Time
Digital Feedthrough
Digital-to-Analog Glitch Impulse
Signal-to-Noise Plus Distortion
Ratio
Code = FF hex
To 1/2 LSB, from code 0A to code FF hex
(Note 2)
Code = 00 hex
Code = 80 to code = 7F hex
V
REF
= 4V
p-p
at 1kHz centered at 2.5V
code = FF hex
SINAD
V
REF
= 4V
p-p
at 10kHz centered at 2.5V
code = FF hex
V
REF
= 0.1V
p-p
centered at V
DD
/2, -3dB
bandwidth
55
700
16
V
DD
I
DD
I
SHDN
4.5
1.4
0.45
5.5
2.6
10
kHz
µV
V
mA
µA
0.55
10
0.15
30
68
dB
V/µs
µs
nV-s
nV-s
V
OH
V
OL
I
SOURCE
= 0.2mA
I
SINK
= 1.6mA
V
DD
-
0.5
0.4
V
V
SYMBOL
I
IN
C
IN
V
IN
= 0 to V
DD
(Note 3)
10
CONDITIONS
MIN
TYP
MAX
±1.0
UNITS
µA
pF
MAX5258/MAX5259
Multiplying Bandwidth
Wideband Amplifier Noise
POWER REQUIREMENTS
Power-Supply Voltage
Supply Current
Shutdown Supply Current
_______________________________________________________________________________________
3
+3V/+5V, Low-Power, 8-Bit Octal DAC
with Rail-to-Rail Output Buffers
MAX5258/MAX5259
ELECTRICAL CHARACTERISTICS (MAX5259)
(V
DD
= +2.7V to +3.3V, V
REF
= +2.5V, GND = 0, R
L
= 10kΩ, C
L
= 100pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values
are at V
DD
= +3V, and T
A
= +25°C.)
PARAMETER
STATIC ACCURACY
Resolution
Integral Non Linearity (Note 1)
Differential Non Linearity (Note 1)
Zero-Code Error
Zero-Code Error Supply
Rejection
Zero-Code Temperature
Coefficient
Full-Scale Error
Full-Scale Error Supply Rejection
Full-Scale Temperature
Coefficient
REFERENCE INPUTS
Input Voltage Range
Input Resistance
Input Capacitance
DAC OUTPUTS
Output Voltage Swing
Output Voltage Range
DIGITAL INPUTS
Input High Voltage
Input Low Voltage
Input Current
Input Capacitance
DIGITAL OUTPUTS
Output High Voltage
Output Low Voltage
DYNAMIC PERFORMANCE
Voltage-Output Slew Rate
Output Settling Time
Code = FF hex
To 1/2 LSB, from code 0A to code FF hex
(Note 2)
0.55
7
V/µs
µs
V
OH
V
OL
I
SOURCE
= 0.2mA
I
SINK
= 1.6mA
V
DD
–
0.5
0.4
V
V
V
IH
V
IL
I
IN
C
IN
V
IN
= 0 to V
DD
(Note 3)
10
0.7 x
V
DD
0.3 x
V
DD
±1.0
V
V
µA
pF
R
L
= 10kΩto GND
R
L
= 10kΩ to GND
0
0
V
DD
–
0.3
V
REF
V
V
0
161
218
20
V
DD
300
V
kΩ
pF
INL
DNL
ZCE
Guaranteed monotonic (all codes)
Code = 0A hex
Code = 0A hex.
Code = 0A hex
Code = FF hex
Code = FF hex
Code = FF hex
8
±0.1
±0.1
±2.5
0.15
±10
±0.7
0.2
±10
±30
1
±1
±1
±20
1
Bits
LSB
LSB
mV
LSB
µV/
o
C
mV
LSB
µV/
o
C
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
4
_______________________________________________________________________________________
+3V/+5V, Low-Power, 8-Bit Octal DAC
with Rail-to-Rail Output Buffers
ELECTRICAL CHARACTERISTICS (MAX5259) (continued)
(V
DD
= +2.7V to +3.3V, V
REF
= +2.5V, GND = 0, R
L
= 10kΩ, C
L
= 100pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values
are at V
DD
= +3V, and T
A
= +25°C.)
PARAMETER
Digital Feedthrough
Digital-to-Analog Glitch Impulse
Signal-to-Noise Plus Distortion
Ratio
SYMBOL
Code = 00 hex
Code = 80 to code = 7F hex
V
REF
= 2.5V
p-p
at 1kHz centered at 1.5V
code = FF hex
SINAD
V
REF
= 2.5V
p-p
at 10kHz centered at 1.5V
code = FF hex
V
REF
= 0.1V
p-p
centered at V
DD
/2, -3dB
bandwidth
54
700
60
V
DD
I
DD
I
SHDN
2.7
1.3
0.24
3.6
2.6
10
kHz
µV
V
mA
µA
CONDITIONS
MIN
TYP
0.1
20
65
dB
MAX
UNITS
nV-s
nV-S
MAX5258/MAX5259
Multiplying Bandwidth
Wideband Amplifier Noise
POWER REQUIREMENTS
Power-Supply Voltage
Supply Current
Shutdown Supply Current
TIMING CHARACTERISTICS (MAX5258)
(V
REF
= +4.096V, GND = 0, C
DOUT
= 100pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
DD
= +5V and
T
A
= +25°C.)
PARAMETER
V
DD
Rise-to-CS Fall-Setup Time
LDAC
Pulse Width Low
CS
Rise-to-LDAC Fall-Setup Time
(Note 4)
CS
Pulse Width High
SCLK Clock Frequency (Note 5)
SCLK Pulse Width High
SCLK Pulse Width Low
CS
Fall-to-SCLK Rise-Setup Time
SCLK Rise-to-CS Rise-Hold Time
DIN to SCLK Rise-to-Setup Time
DIN to SCLK Rise-to-Hold Time
SCLK Rise-to-DOUT Valid
Propagation Delay (Note 6)
SCLK Fall-to-DOUT Valid
Propagation Delay (Note 7)
CS
Rise-to-SCLK Rise-Setup
Time
SYMBOL
t
VDCS
t
LDAC
t
CLL
t
CSW
f
CLK
t
CH
t
CL
t
CSS
t
CSH
t
DS
t
DH
t
DO1
t
DO2
t
CS1
40
40
40
40
0
40
0
200
210
40
40
90
10
CONDITIONS
MIN
TYP
5
20
MAX
UNITS
µs
ns
ns
ns
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
_______________________________________________________________________________________
5
嵌入式系统
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