19-2151; Rev 0; 8/01
Low-Power, Low-Glitch, Octal 10-Bit Voltage-
Output DACs with Serial Interface
General Description
The MAX5308/MAX5309 are 10-bit, eight channel, low-
power, voltage-output, digital-to-analog converters (DACs)
in a space-saving 16-pin TSSOP package. The wide
+2.7V to +5.5V supply voltage range and less than 215µA
(max) supply current per DAC are excellent for low-power
and low-voltage applications. The low 2nV-s glitch energy
of the MAX5308/MAX5309 makes them ideal for digital
control of fast-response, closed-loop systems.
The MAX5308 has a digital output (DOUT) that can be
used for daisy-chaining multiple devices. The MAX5309
has a hardware reset input (CLR) which clears all regis-
ters and DACs to zero. The MAX5308/MAX5309 have a
software shutdown feature that reduces the supply cur-
rent to 1µA. The MAX5308/MAX5309 feature a load
DAC (LDAC) function that updates the output of all
eight DACs simultaneously.
The 3-wire SPI™, QSPI™, MICROWIRE™ and DSP-
compatible serial interface allows the input and DAC
registers to be updated independently or simultaneous-
ly with a single software command. These devices use
a double-buffered design to minimize the digital-noise
feedthrough from the digital inputs to the outputs.
The MAX5308/MAX5309 operating temperature range
is from -40°C to +85°C.
Features
o
Eight Highly Integrated 10-Bit DACs in 16-Pin
TSSOP (6.4mm
✕
5mm) Package
o
Ultra-Low Glitch Energy <2nV-s
o
Low Total Supply Current:
1.7mA (max) with V
REF
= V
DD
= +5.5V
o
+2.7V to +5.5V Wide Single-Supply Range
o
Fast 5µs Settling Time
o
Software-Selectable Shutdown Mode < 1µA
o
15MHz 3-Wire SPI, QSPI, and MICROWIRE-
Compatible Serial Interface
o
Power-Up Reset to Zero Scale
MAX5308/MAX5309
Ordering Information
PART
MAX5308EUE
MAX5309EUE
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 TSSOP
16 TSSOP
Applications
Gain and Offset Adjustment
Power Amplifier Control
Process Control I/O Boards
Portable Instrumentation Equipment
Control of Optical Components
TOP VIEW
SCLK 1
DIN 2
LDAC 3
REF 4
OUT1 5
OUT2 6
OUT3 7
OUT4 8
16 CS
15 DOUT (CLR)
14 V
DD
Pin Configuration
MAX5308
MAX5309
13 GND
12 OUT8
11 OUT7
10 OUT6
9
OUT5
16-TSSOP
() FOR MAX5309 ONLY
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor, Corp.
________________________________________________________________
Maxim Integrated Products
1
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.
Low-Power, Low-Glitch, Octal 10-Bit Voltage-
Output DACs with Serial Interface
MAX5308/MAX5309
ABSOLUTE MAXIMUM RATINGS
V
DD
to GND ............................................................. -0.3V to +6V
All Other Pins to GND.................................-0.3V to (V
DD
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
16-Pin TSSOP (derate 9.4mW/°C above +70°C) .........775mW
Maximum Current into Any Pin .........................................±50mA
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°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
(V
DD
= +2.7V to +5.5V, GND = 0, V
REF
= V
DD
, C
L
= 200pF, R
L
= 2kΩ, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are
at V
DD
= +5V, T
A
= +25°C.)
PARAMETER
STATIC ACCURACY
(Notes 1, 2)
Resolution
Integral Nonlinearity
Differential Nonlinearity
Offset Error (Note 3)
Offset Error Temperature Coefficient
Gain Error (Note 3)
Gain Error Temperature Coefficient
REFERENCE INPUT
Reference Input Voltage Range (Note 4)
Reference Input Impedance
Reference Current
DAC OUTPUTS
Output Voltage Range
DC Output Impedance
Capacitive Load
Resistive Load
Short-Circuit Current
Wake-Up Time
C
L
R
L
V
DD
= +5V
V
DD
= +2.7V
From shutdown mode
With no-load
0.020
0.5
500
2
33
20
24
V
DD
-
0.020
V
Ω
pF
kΩ
mA
µs
V
REF
R
REFIN
I
REFPD
In power-down mode
0.8
135
200
1
V
DD
265
10
V
kΩ
µA
V
GE
N
INL
DNL
V
OE
Guaranteed monotonic
±10
±10
±0.1
±5
±1
10
±0.5
±2
±0.5
±60
Bits
LSB
LSB
mV
µV/°C
% of
FS
ppm/°C
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
2
_______________________________________________________________________________________
Low-Power, Low-Glitch, Octal 10-Bit Voltage-
Output DACs with Serial Interface
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +2.7V to +5.5V, GND = 0, V
REF
= V
DD
, C
L
= 200pF, R
L
= 2kΩ, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are
at V
DD
= +5V, T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
V
DD
= +5V ±10%
V
DD
= +3V ±10%
V
DD
= +5V ±10%
V
DD
= +3V ±10%
All digital inputs 0 or V
DD
±0.1
10
I
SINK
= 1mA
I
SOURCE
= 1mA
V
DD
-
0.5
1
5
0.5
2
600
0.5
V
DD
All digital inputs at 0 or V
DD
,
V
DD
= V
REF
= +5.5V
Supply Current with No-Load (Note 5)
I
DD
All digital inputs at 0 or V
DD
,
V
DD
= +5.5V, V
REF
= +1.2V
All digital inputs at 0 or V
DD
,
V
DD
= V
REF
= +3V
Shutdown mode
2.7
1.5
1.1
1.3
1
10
µA
5.5
1.7
1.3
mA
0.5
MIN
2.4
2.1
0.8
0.6
±10
TYP
MAX
UNITS
MAX5308/MAX5309
DIGITAL INPUTS (SCLK, DIN,
CS, LDAC, CLR—MAX5309)
Input High Voltage
Input Low Voltage
Input Leakage Current
Input Capacitance
DIGITAL OUTPUT (MAX5308)
Output Low Voltage
Output High Voltage
DYNAMIC PERFORMANCE
Voltage-Output Slew Rate
Voltage-Output Settling Time
Digital Feedthrough
DAC Glitch Impulse
DAC Output Noise
DAC to DAC crosstalk
POWER REQUIREMENTS
Supply Voltage Range
V
SR
t
S
Positive and negative
FFHhex to 2FFhex
Code 0, all digital inputs from 0 to
V
DD
Major carry glitch
V/µs
µs
nV-s
nV-s
µVp-p
nV-s
V
OL
V
OH
V
V
V
IH
V
IL
I
IN
C
IN
V
V
µA
pF
_______________________________________________________________________________________
3
Low-Power, Low-Glitch, Octal 10-Bit Voltage-
Output DACs with Serial Interface
MAX5308/MAX5309
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +2.7V to +5.5V, GND = 0, V
REF
= V
DD
, C
L
= 200pF, R
L
= 2kΩ, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are
at V
DD
= +5V, T
A
= +25°C.)
PARAMETER
TIMING CHARACTERISTICS
Serial Clock Frequency
SCLK Pulse Width High
SCLK Pulse Width Low
CS
Fall to SCLK Fall Setup Time
SCLK Fall to
CS
Rise Setup Time
LDAC
Pulse Width Low
CLR
Pulse Width Low
DIN to SCLK Fall Setup Time
DIN to SCLK Fall Hold Time
CS
Pulse Width High
SCLK Rise to DOUT Fall
SCLK Rise to DOUT Rise
f
SCLK
t
CH
t
CL
t
CSS
t
CSH
t
LDACPWL
t
CLRPWL
t
DS
t
DH
t
CSPWH
t
SDL
t
SDH
Load capacitance = 20pF
Load capacitance = 20pF
MAX5309 only
0
33
33
16
20
20
20
16
10
20
50
50
15
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Static accuracy tested without load.
Linearity is tested within codes 1Dhex to 3E3hex.
Gain and offset tested within codes 1Dhex to 3E3hex.
Static accuracy specifications valid for V
REF
= 1.2V to V
DD
.
Current scales linearly between these two extremes of V
REF.
4
_______________________________________________________________________________________
Low-Power, Low-Glitch, Octal 10-Bit Voltage-
Output DACs with Serial Interface
Typical Operating Characteristics
(V
DD
= +5V, T
A
= +25°C, unless otherwise noted.)
INTEGRAL NONLINEARITY
vs. DIGITAL INPUT CODE
MAX5308 toc01
MAX5308/MAX5309
DIFFERENTIAL NONLINEARITY
vs. DIGITAL INPUT CODE
MAX5308 toc02
REFERENCE VOLTAGE INPUT
FREQUENCY RESPONSE
0
RELATIVE OUTPUT (dB)
MAX5308 toc03
0.20
0.15
0.10
0.05
0
-0.05
-0.10
0
200
400
600
800
0.040
0.030
0.020
DNL (LSB)
-5
INL (LSB)
0.010
0
-0.010
-0.020
-0.030
-0.040
-10
-15
V
REF
SWEPT 1V
P-P
R
L
= 2kΩ, C
L
= 200pF
-20
0
200
400
600
800
1000
0
100
200
300
400
500
DIGITAL INPUT CODE
FREQUENCY (kHz)
1000
DIGITAL INPUT CODE
SUPPLY CURRENT vs. TEMPERATURE
1.100
SUPPLY CURRENT (mA)
1.095
1.090
1.085
1.080
1.075
1.070
1.065
1.060
-40
-20
0
20
40
60
80
TEMPERATURE (°C)
0.7
0.6
V
REF
= +2.5V
CODE = 000
MAX5308 toc04
SUPPLY CURRENT
vs. REFERENCE VOLTAGE
MAX5308 toc05
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
T
A
= -40°C
0.95
SUPPLY CURRENT (mA)
0.90
0.85
0.80
T
A
= +85°C
0.75
0.70
V
REF
= +1.2V
CODE = 000
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
T
A
= +25°C
MAX5308 toc06
1.105
1.3
1.2
SUPPLY CURRENT (mA)
1.1
1.0
0.9
0.8
V
DD
= +3V
V
DD
= +5V
1.00
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
REFERENCE VOLTAGE (V)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(C0DE = 3FFHEX)
MAX5308 toc07
SOURCE-AND-SINK CURRENT CAPABILITY
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
V
DD
= V
REF
= +5V
CODE = 3FFHEX,
SOURCING CURRENT FROM OUT_
MAX5308 toc08
FULL-SCALE ERROR
vs. REFERENCE VOLTAGE
MAX5308 toc09
1.80
1.75
SUPPLY CURRENT (mA)
T
A
= -40°C
1.70
1.65
T
A
= +85°C
1.60
1.55
1.50
V
REF
= +1.2V
CODE = 3FFHEX
T
A
= +25°C
0
FULL-SCALE ERROR (LSB)
-0.5
V
OUT
(V)
CODE = 100HEX,
SINKING CURRENT
INTO OUT_
CODE = 300HEX,
SOURCING CURRENT
FROM OUT_
CODE = 000HEX,
SINKING CURRENT INTO OUT_
5
10
15
20
I
SOURCE/SINK
(mA)
25
30
-1.0
-1.5
-2.0
V
DD
= +5V, CODE = 3FFHEX
NORMALIZED TO V
REF
= +5V
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
REFERENCE VOLTAGE (V)
-2.25
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
_______________________________________________________________________________________
5
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