MAX5156AEEE+T Maxim Integrated Products, MAX5156AEEE+T Datasheet - Page 16

• Manufacturer Part Number: MAX5156AEEE+T
• Description: IC DAC 12BIT DUAL LP SER 16-QSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX5156AEEE+T

• Settling Time: 15µs
• Number Of Bits: 12
• Data Interface: Serial
• Number Of Converters: 2
• Voltage Supply Source: Single Supply
• Power Dissipation (max): 667mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 15 depicts a digitally programmable, unidirec-
tional current source that can be used in industrial con-
trol applications. The output current is:
where NB is the DAC code and R is the sense resistor.
On power-up, the input and DAC registers clear (resets
to zero code). For rated performance, V
at least 1.4V below V
a 4.7µF capacitor in parallel with a 0.1µF capacitor to
GND. Minimize lead lengths to reduce lead inductance.
Digital and AC transient signals on AGND can create
noise at the output. Connect AGND to the highest quali-
ty ground available. Use proper grounding techniques,
such as a multilayer board with a low-inductance
ground plane. Carefully lay out the traces between
channels to reduce AC cross-coupling and crosstalk.
Wire-wrapped boards and sockets are not recommend-
ed. If noise becomes an issue, shielding may be
required.
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
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.
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
16
16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 1997 Maxim Integrated Products
© 1997 Maxim Integrated Products
© 1997 Maxim Integrated Products
Low-Power, Dual, 12-Bit Voltage-Output DACs
with Configurable Outputs
TRANSISTOR COUNT: 3053
SUBSTRATE CONNECTED TO AGND
___________________Chip Information
__________________Pin Configuration
____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
Digitally Programmable Current Source
TOP VIEW
Grounding and Layout Considerations
I
OUT
AGND
OUTA
SCLK
REFA
FBA
DIN
CS
= (V
CL
Power-Supply Considerations
1
2
6
3
4
5
7
8
DD
REF
. Bypass the power supply with
DIP/QSOP
MAX5156
MAX5157
/ R) (NB / 4096)
16
15
14
13
12
11
10
9
Printed USA
Printed USA
Printed USA
V
OUTB
FBB
REFB
PDL
UPO
DOUT
DGND
REF_
DD
should be
Figure 15. Digitally Programmable Current Source
* Contact factory for availability.
_Ordering Information (continued)
MAX5156AEPE
MAX5156BEPE
MAX5156AEEE
MAX5156BEEE
MAX5156BMJE
MAX5157ACPE
MAX5157BCPE
MAX5157ACEE
MAX5157BCEE
MAX5157AEPE
MAX5157BEPE
MAX5157AEEE
MAX5157BEEE
MAX5157BMJE
PART
is a registered trademark of Maxim Integrated Products.
is a registered trademark of Maxim Integrated Products.
is a registered trademark of Maxim Integrated Products.
+5V/+3V
DGND
V
DD
MAX5156
MAX5157
DAC_
REF_
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
AGND
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
16 Plastic DIP
16 Plastic DIP
16 QSOP
16 QSOP
16 CERDIP*
16 Plastic DIP
16 Plastic DIP
16 QSOP
16 QSOP
16 Plastic DIP
16 Plastic DIP
16 QSOP
16 QSOP
16 CERDIP*
PIN-PACKAGE
OUT_
FB_
V
L
2N3904
R
I
OUT
(LSB)
±1/2
±1
±1/2
±1
±1
±1
±2
±1
±2
±1
±2
±1
±2
±2
INL