max5500 Maxim Integrated Products, Inc., max5500 Datasheet

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max5500

Manufacturer Part Number
max5500
Description
Low-power, Quad, 12-bit Voltage-output Dacs With Serial Interface
Manufacturer
Maxim Integrated Products, Inc.
Datasheet

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max5500AGAP+
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The MAX5500/MAX5501 integrate four low-power, 12-bit
digital-to analog converters (DACs) and four precision
output amplifiers in a small, 20-pin package. Each nega-
tive input of the four precision amplifiers is externally
accessible providing flexibility in gain configurations,
remote sensing, and high output drive capacity, making
the MAX5500/MAX5501 ideal for industrial-process-con-
trol applications. Other features include software shut-
down, hardware shutdown lockout, an active-low reset
which clears all registers and DACs to zero, a user-pro-
grammable logic output, and a serial-data output.
Each DAC provides a double-buffered input organized
as an input register followed by a DAC register. A 16-bit
serial word loads data into each input register. The seri-
al interface is compatible with SPI™/QSPI™/
MICROWIRE™. The serial interface allows the input and
DAC registers to be updated independently or simulta-
neously with a single software command. The 3-wire
interface simultaneously updates the DAC registers. All
logic inputs are TTL/CMOS-logic compatible. The
MAX5500 operates from a single +5V power supply,
and the MAX5501 operates from a single +3V power
supply. The MAX5500/MAX5501 are specified over the
extended -40°C to +105°C temperature range.
19-4368; Rev 0; 11/08
SPI/QSPI are trademarks of Motorola, Inc.
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.
Industrial Process Controls
Automatic Test Equipment
Microprocessor (µP)-Controlled Systems
Motion Control
Digital Offset and Gain Adjustment
Remote Industrial Controls
Voltage-Output DACs with Serial Interface
________________________________________________________________ Maxim Integrated Products
General Description
DOUT
CS DIN SCLK
REGISTER
CONTROL
16-BIT
SHIFT
SR
Applications
CL
OUTPUT
CONTROL
DECODE
LOGIC
UPO
PDL
DGND
REGISTER C
REGISTER D
REGISTER A
REGISTER B
INPUT
INPUT
INPUT
INPUT
AGND
Low-Power, Quad, 12-Bit
V
DD
REGISTER B
REGISTER C
REGISTER D
REGISTER A
♦ Four 12-Bit DACs with Configurable Output
♦ +5V or +3V Single-Supply Operation
♦ Low Supply Current:
♦ Force-Sense Outputs
♦ Power-On Reset Clears All Registers and DACs
♦ Capable of Recalling Last State Prior to Shutdown
♦ SPI/QSPI/MICROWIRE Compatible
♦ Simultaneous or Independent Control of DACs
♦ User-Programmable Digital Output
♦ Guaranteed Over Extended Temperature Range
MICROWIRE is a trademark of National Semiconductor, Corp.
+ Denotes a lead-free/RoHS-compliant package.
* Future product—contact factory for availability.
Note: All devices are specified over the -40°C to +105°C operating
temperature range.
Pin Configuration appears at end of data sheet.
MAX5500AGAP+
MAX5500BGAP+
MAX5501AGAP+*
MAX5501BGAP+*
DAC
DAC
DAC
DAC
Amplifiers
to Zero
through 3-Wire Serial Interface
(-40°C to +105°C)
0.85mA Normal Operation
10µA Shutdown Mode (MAX5500)
PART
DAC A
DAC B
DAC C
DAC D
REFAB
REFCD
MAX5500
MAX5501
PIN-
PACKAGE
20 SSOP
20 SSOP
20 SSOP
20 SSOP
Ordering Information
Functional Diagram
FBA
FBB
OUTB
FBC
OUTC
FBD
OUTD
OUTA
INL (LSB)
±0.75
±0.75
± 2
±2
Features
SUPPLY (V)
+5
+5
+3
+3
1

Related parts for max5500

max5500 Summary of contents

Page 1

... The 3-wire interface simultaneously updates the DAC registers. All logic inputs are TTL/CMOS-logic compatible. The MAX5500 operates from a single +5V power supply, and the MAX5501 operates from a single +3V power supply. The MAX5500/MAX5501 are specified over the extended -40°C to +105°C temperature range. ...

Page 2

... 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 (MAX5500 (V = +5V ±10 ...

Page 3

... Voltage-Output DACs with Serial Interface ELECTRICAL CHARACTERISTICS (continued) (MAX5500 (V = +5V ±10 REFAB R = 5kΩ 100pF MIN MAX gain configuration (Figure 9).) PARAMETER SYMBOL DIGITAL OUTPUTS Output High Voltage V Output Low Voltage V DYNAMIC PERFORMANCE Voltage Output Slew Rate SR Output Settling Time ...

Page 4

... Low-Power, Quad, 12-Bit Voltage-Output DACs with Serial Interface ELECTRICAL CHARACTERISTICS (continued) (MAX5500 (V = +5V ±10 REFAB R = 5kΩ 100pF MIN MAX gain configuration (Figure 9).) PARAMETER SYMBOL SCLK Rise to DOUT Valid t D01 Propagation Delay SCLK Fall to DOUT Valid t D02 ...

Page 5

... DACA CODE SWITCHING FROM 00C hex TO FCC hex DACB CODE SET TO 800 hex DYNAMIC RESPONSE 5V MAX5500 toc11 OUTA 1V/div 10µs/div V = 2.5V 5kΩ 100pF REF L L SWITCHING FROM CODE 000 hex TO FB4 hex OUTPUT AMPLIFIER GAIN = + 100 MAX5500 toc09 OUTA 1V/div OUTB AC-COUPLED 10mV/div 5 ...

Page 6

... V = 1.5V 5kΩ 100pF REF 3.3V PDL CL DIN DACA CODE SET TO 800 hex FUNCTION DIGITAL FEEDTHROUGH 5V (SCLK = 100kHz) MAX5500 toc14 SCLK 2V/div OUTA AC-COUPLED 10mV/div 2µs/div V = 2.5V 5kΩ 100pF REF 5V PDL CL ...

Page 7

... The REFAB and REFCD inputs enter a high-impedance state, with a typical input leakage current of 0.02µA, when the MAX5500/MAX5501 are in shutdown. The ref- erence input capacitance is also code dependent and typically ranges from 20pF with an input code of all 0s to 100pF with an input code of all 1s. ...

Page 8

... If the device is to enter shutdown mode (assuming PDL is high) • How the device is configured when exiting out of shutdown mode MAX5500 MAX5501 SK *THE DOUT-MISO CONNECTION IS NOT REQUIRED FOR WRITING TO THE MAX5500/MAX5501, BUT CAN BE USED FOR READBACK PURPOSES. SO Figure 3. Connections for SPI/QSPI MICROWIRE SI* PORT MSB.................................................................................................................................LSB I/O ...

Page 9

... CSS The serial-data output, DOUT, is the internal shift regis- ter’s output. The MAX5500/MAX5501 can be pro- grammed so that data is clocked out of DOUT on the rising edge of SCLK (mode 1) or the falling edge (mode 0). In mode 0, output data at DOUT lags input data at DIN by 16 ...

Page 10

... When in shutdown, transitioning PDL from high to low wakes up the device with the output set to the state prior to shutdown. Use PDL to asynchronously wake up the device. Daisy Chaining Devices The MAX5500/MAX5501 can be daisy chained by con- necting DOUT of one device to DIN of another device (Figure 7). 10 ______________________________________________________________________________________ ...

Page 11

... MAX5501 DIN DIN CS CS Figure 7. Daisy Chaining MAX5500/MAX5501 DIN SCLK CS1 CS2 CS3 CS MAX5500 MAX5501 SCLK DIN Figure 8. Multiple MAX5500/MAX5501 Devices Sharing a Common DIN Line ______________________________________________________________________________________ Low-Power, Quad, 12-Bit MAX5500 SCLK MAX5501 DOUT DOUT DIN CS CS MAX5500 MAX5501 SCLK DIN MAX5500 ...

Page 12

... Applications Information For a unipolar output, the output voltages and the refer- ence inputs are of the same polarity. Figure 9 shows the MAX5500/MAX5501 unipolar output circuit, which is also the typical operating circuit. Table 2 lists the unipo- lar output codes. See Figure 10 for rail-to-rail outputs. Figure 10 shows ...

Page 13

... MAX5500 10kΩ ± 0.1% MAX5501 Figure 11. Bipolar Output Circuit ______________________________________________________________________________________ Low-Power, Quad, 12-Bit For rated MAX5500/MAX5501 performance, limit 1.4V below V REFCD capacitor in parallel with a 0.1µF capacitor to AGND. Use short lead lengths and place the bypass capaci- tors as close as possible to the supply inputs. ...

Page 14

... Low-Power, Quad, 12-Bit Voltage-Output DACs with Serial Interface Pin Configuration TOP VIEW + AGND 1 FBA 2 3 OUTA OUTB 4 MAX5500 FBB 5 MAX5501 REFAB DIN 9 SCLK 10 SSOP Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied ...

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