MAX5156BCEE+ Maxim Integrated Products, MAX5156BCEE+ Datasheet

IC DAC DUAL 5VOLT 12BIT 16-QSOP

MAX5156BCEE+

Manufacturer Part Number
MAX5156BCEE+
Description
IC DAC DUAL 5VOLT 12BIT 16-QSOP
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX5156BCEE+

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
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
16-QSOP
Resolution
12 bit
Interface Type
Serial (SPI)
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.5 V
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
0 C
Supply Current
0.65 mA
Voltage Reference
External
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX5156/MAX5157 low-power, serial, voltage-out-
put, dual 12-bit digital-to-analog converters (DACs)
consume only 500µA from a single +5V (MAX5156) or
+3V (MAX5157) supply. These devices feature Rail-to-
Rail
16-pin QSOP and DIP packages. Access to the invert-
ing input allows for specific gain configurations, remote
sensing, and high output current capability, making
these devices ideally suited for industrial process con-
trols. These devices are also well suited for digitally
programmable (4–20mA) current loops.
The 3-wire serial interface is SPI™/QSPI™ and
Microwire™ compatible. Each DAC has a double-
buffered input organized as an input register followed
by a DAC register, which allows the input and DAC reg-
isters to be updated independently or simultaneously.
Additional features include a programmable shutdown
(2µA), hardware-shutdown lockout, a separate voltage
reference for each DAC, power-on reset, and an active-
low clear input (CL) that resets all registers and DACs to
zero. The MAX5156/MAX5157 provide a programmable
logic output pin for added functionality, and a serial-
data output pin for daisy chaining.
Industrial Process Control
Digital Offset and Gain
Adjustment
Remote Industrial Controls
________________________Applications
19-1317; Rev 1; 12/97
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.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
_________________________________________________________Functional Diagram
_______________General Description
®
Low-Power, Dual, 12-Bit Voltage-Output DACs
output swing and are available in space-saving
________________________________________________________________ Maxim Integrated Products
CS
DOUT
REGISTER
CONTROL
16-BIT
SHIFT
SR
DIN
CL
SCLK UPO
Motion Control
Digitally Programmable
4–20mA Current Loops
Automatic Test Equipment
CONTROL
DECODE
OUTPUT
LOGIC
PDL
INPUT
REG A
INPUT
REG B
DGND
with Configurable Outputs
AGND
REG A
REG B
DAC
DAC
____________________________Features
_______________Ordering Information
Ordering Information continued at end of data sheet.
Pin Configuration appears at end of data sheet.
V
MAX5156ACPE
MAX5156BCPE
MAX5156ACEE
MAX5156BCEE
DD
12-Bit Dual DAC with Configurable Output
Amplifier
Single-Supply Operation: +5V (MAX5156)
Rail-to-Rail Output Swing
Low Quiescent Current: 500µA (normal operation)
Power-On Reset Clears DAC Outputs to Zero
SPI/QSPI and Microwire Compatible
Space-Saving 16-Pin QSOP Package
MAX5156
MAX5157
PART
DAC A
DAC B
REFA
REFB
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
2µA (shutdown mode)
+3V (MAX5157)
16 Plastic DIP
16 Plastic DIP
16 QSOP
16 QSOP
PIN-PACKAGE
OUTA
FBA
OUTB
FBB
(LSB)
±1/2
±1
±1/2
±1
INL
1

Related parts for MAX5156BCEE+

MAX5156BCEE+ Summary of contents

Page 1

... 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. ________________________________________________________________ Maxim Integrated Products For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 408-737-7600 ext. 3468. ...

Page 2

Low-Power, Dual, 12-Bit Voltage-Output DACs with Configurable Outputs ABSOLUTE MAXIMUM RATINGS V to AGND............................................................-0. DGND ...........................................................-0.3V to +6V DD AGND to DGND ..................................................................±0.3V FBA, FBB to AGND.....................................-0. REF_, OUT_ to AGND.................................-0. ...

Page 3

Low-Power, Dual, 12-Bit Voltage-Output DACs ELECTRICAL CHARACTERISTICS—MAX5156 (continued +5V ±10 2.5V REFA REFB T = +25°C, output buffer connected in unity-gain configuration (Figure 9).) A PARAMETER SYMBOL DIGITAL OUTPUTS (DOUT, UPO) Output ...

Page 4

Low-Power, Dual, 12-Bit Voltage-Output DACs with Configurable Outputs ELECTRICAL CHARACTERISTICS—MAX5157 (V = +2.7V to +3.6V 1.25V REFA REFB are +25°C, output buffer connected in unity-gain configuration (Figure 9).) A PARAMETER SYMBOL ...

Page 5

Low-Power, Dual, 12-Bit Voltage-Output DACs ELECTRICAL CHARACTERISTICS—MAX5157 (continued +2.7V to +3.6V REFA REFB are +25°C, output buffer connected in unity-gain configuration (Figure 9).) A PARAMETER SYMBOL POWER SUPPLIES Positive Supply Voltage ...

Page 6

Low-Power, Dual, 12-Bit Voltage-Output DACs with Configurable Outputs __________________________________________Typical Operating Characteristics (V = +5V 10kΩ 100pF, FB_ connected to OUT_ REFERENCE VOLTAGE INPUT FREQUENCY RESPONSE -10 -12 ...

Page 7

Low-Power, Dual, 12-Bit Voltage-Output DACs ____________________________Typical Operating Characteristics (continued +3V 10kΩ 100pF, FB_ connected to OUT_ REFERENCE VOLTAGE INPUT FREQUENCY RESPONSE -10 -12 -14 -16 ...

Page 8

Low-Power, Dual, 12-Bit Voltage-Output DACs with Configurable Outputs ____________________________Typical Operating Characteristics (continued +5V (MAX5156 +3V (MAX5157 otherwise noted.) MAX5156 SUPPLY CURRENT vs. SUPPLY VOLTAGE 0.60 0.55 CODE = 1FFE (HEX) 0.50 CODE = ...

Page 9

Low-Power, Dual, 12-Bit Voltage-Output DACs ______________________________________________________________Pin Description PIN NAME 1 AGND Analog Ground 2 OUTA DAC A Output Voltage 3 FBA DAC A Output Amplifier Feedback Input. Inverting input of the output amplifier. 4 REFA Reference for DAC A CL ...

Page 10

Low-Power, Dual, 12-Bit Voltage-Output DACs with Configurable Outputs Table 1. Serial-Interface Programming Commands 16-BIT SERIAL WORD ...

Page 11

Low-Power, Dual, 12-Bit Voltage-Output DACs SCLK MAX5156 DIN MAX5157 CS Figure 2. Connections for Microwire DIN MAX5156 SCLK MAX5157 CS Figure 3. Connections for SPI/QSPI MSB...................................................................................LSB 16 Bits of Serial Data Address Bits Control Bits MSB...DataBits...LSB A0 C1, C0 D11.......................D0 ...

Page 12

Low-Power, Dual, 12-Bit Voltage-Output DACs with Configurable Outputs CS SCLK D11 D10 DIN A0 Figure 5. Serial-Interface Timing Diagram CS t CSS t CSO SCLK DIN Figure 6. Detailed Serial-Interface Timing Diagram SCLK ...

Page 13

Low-Power, Dual, 12-Bit Voltage-Output DACs DIN SCLK CS1 CS2 CS3 CS MAX5156 MAX5157 SCLK DIN Figure 8. Multiple MAX5156/MAX5157s Sharing a Common DIN Line +5V/+3V REF_ V DD MAX5156 MAX5157 DAC DGND AGND Figure 9. Unipolar Output Circuit __________Applications Information ...

Page 14

Low-Power, Dual, 12-Bit Voltage-Output DACs with Configurable Outputs REF_ +5V/+ MAX5156 MAX5157 DAC DGND AGND ( ) ( )( ) = REF_ OUT R2 4096 Figure 10. Configurable Output Gain Table 3. ...

Page 15

Low-Power, Dual, 12-Bit Voltage-Output DACs Digital Calibration and Threshold Selection Figure 13 shows the MAX5156/MAX5157 in a digital calibration application. With a bright value applied to the photodiode (on), the DAC is digitally ramped up until it trips the comparator. ...

Page 16

... Maxim reserves the right to change the circuitry and specifications without notice at any time. 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 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © ...

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