Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsData collecting ICsData acquisition IC - DA converter (DAC) uMAX 10

MAX5803/MAX5804/MAX5805

Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output

Voltage DACs with Internal Reference and I

C Interface

General Description

The MAX5803/MAX5804/MAX5805 single-channel, low-

power, 8-/10-/12-bit, voltage-output this is an addition

to content digital-to-analog converters (DACs) include

output buffers and an internal reference that is selectable

to be 2.048V, 2.500V, or 4.096V. The MAX5803/MAX5804/

MAX5805 accept a wide supply voltage range of 2.7V to

5.5V with extremely low power (< 1mW) consumption to

accommodate most low-voltage applications. A precision

external reference input allows rail-to-rail operation and

presents a 100kI (typ) load to an external reference.

The MAX5803/MAX5804/MAX5805 have an I

C-

compatible, 2-wire interface that operates at clock rates

up to 450kHz. The DAC output is buffered and has

a low supply current of 155FA (typical at 3.5V) and a

low offset error of Q0.5mV (typical). On power-up, the

MAX5803/MAX5804/MAX5805 reset the DAC outputs

to zero, providing additional safety for applications that

drive valves or other transducers which need to be off on

power-up.

The MAX5803/MAX5804/MAX5805 include a user-

configurable active-low asynchronous input, AUX for

additional flexibility. This input can be programmed to

asynchronously clear (CLR) or temporarily gate (GATE) the

DAC output to a user-programmable value. A dedicated

active-low asynchronous LDAC input is also included. This

allows simultaneous output updates of multiple devices.

The MAX5803/MAX5804/MAX5805 are available in 10-pin

TDFN/µMAX

packages and are specified over the -40NC

to +125NC temperature range

Applications

Programmable Voltage and Current Sources

Gain and Offset Adjustment

Automatic Tuning and Optical Control

Power Amplifier Control and Biasing

Process Control and Servo Loops

Portable Instrumentation

Data Acquisition

Benefits and Features

S Single High-Accuracy DAC Channel

 12-Bit Accuracy Without Adjustments

 ±1 LSB INL Buffered Voltage Output

 Guaranteed Monotonic Over All Operating

Conditions

S Three Precision Selectable Internal References

 2.048V, 2.500V, or 4.096V

S Internal Output Buffer

 Rail-to-Rail Operation with External Reference

 6.3µs Settling Time

 Output Directly Drives 2kI Loads

S Small, 10-Pin, 2mm x 3mm TDFN and 3mm x 5mm

µMAX Packages

S Wide 2.7V to 5.5V Supply Range

S Fast 400kHz I

C-Compatible, 2-Wire Serial Interface

with Readback Capability

S Power-On-Reset to Zero-Scale DAC Output

S User-Configurable Asynchronous I/O Functions:

CLR, LDAC, GATE

S Three Software-Selectable Power-Down Output

Impedances: 1kI, 100kI, or High Impedance

S Low 155µA DAC Supply Current at 3V

19-6464; Rev 3; 11/14

Ordering Information appears at end of data sheet.

µMAX is a registered trademark of Maxim Integrated Products,

Inc.

Functional Diagram

For related parts and recommended products to use with this part, refer to: www.maximintegrated.com/MAX5803.related

ADDR

SDA

SCL

OUT

POR

GND

SERIAL

INTERFACE

CODE

DAC CONTROL LOGIC

DAC

LATCH

100kI 1kI

REF

INTERNAL REFERENCE/

EXTERNAL BUFFER

DDIO

AUX

LDAC

CODE

CLEAR/

RESET

POR

LOAD GATE

CLEAR /

RESET

POWER

DOWN

BUFFER

MAX5803

MAX5804

MAX5805

8-/10-/

12-BIT

DAC

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

Summary of content (31 pages)

PAGE 1
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface General Description The MAX5803/MAX5804/MAX5805 single-channel, lowpower, 8-/10-/12-bit, voltage-output this is an addition to content digital-to-analog converters (DACs) include output buffers and an internal reference that is selectable to be 2.048V, 2.500V, or 4.096V. The MAX5803/MAX5804/ MAX5805 accept a wide supply voltage range of 2.7V to 5.
PAGE 2
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface ABSOLUTE MAXIMUM RATINGS VDD to GND..............................................................-0.3V to +6V VDDIO to GND..........................................................-0.3V to +6V OUT, REF to GND.........-0.3V to lower of (VDD + 0.3V) and +6V SCL, SDA, AUX, LDAC to GND...............................-0.3V to +6V ADDR to GND.....................................
PAGE 3
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface ELECTRICAL CHARACTERISTICS (continued) (VDD = 2.7V to 5.5V, VDDIO = 1.8V to 5.5V, VGND = 0V, CL = 200pF, RL = 2kI , TA = -40NC to +125NC, unless otherwise noted.
PAGE 4
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface ELECTRICAL CHARACTERISTICS (continued) (VDD = 2.7V to 5.5V, VDDIO = 1.8V to 5.5V, VGND = 0V, CL = 200pF, RL = 2kI , TA = -40NC to +125NC, unless otherwise noted.) (Note 2) PARAMETER Output Voltage-Noise Density (DAC Output at Midscale) SYMBOL CONDITIONS f = 1kHz External reference f = 10kHz f = 10kHz 98 2.5V internal reference f = 1kHz 117 f = 10kHz 110 4.
PAGE 5
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface ELECTRICAL CHARACTERISTICS (continued) (VDD = 2.7V to 5.5V, VDDIO = 1.8V to 5.5V, VGND = 0V, CL = 200pF, RL = 2kI , TA = -40NC to +125NC, unless otherwise noted.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS REFERENCE INPUT Reference Input Range VREF Reference Input Current IREF Reference Input Impedance RREF 1.24 VREF = VDD = 5.
PAGE 6
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface ELECTRICAL CHARACTERISTICS (continued) (VDD = 2.7V to 5.5V, VDDIO = 1.8V to 5.5V, VGND = 0V, CL = 200pF, RL = 2kI , TA = -40NC to +125NC, unless otherwise noted.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER REQUIREMENTS Supply Voltage I/O Supply Voltage VDD VREF = 4.096V 4.5 5.5 All other options 2.7 5.5 1.8 5.
PAGE 7
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface ELECTRICAL CHARACTERISTICS (continued) (VDD = 2.7V to 5.5V, VDDIO = 1.8V to 5.5V, VGND = 0V, CL = 200pF, RL = 2kI , TA = -40NC to +125NC, unless otherwise noted.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP Hysteresis Voltage VH 0.15 Input Leakage Current (Note 9) IIN ±0.
PAGE 8
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface ELECTRICAL CHARACTERISTICS (continued) (VDD = 2.7V to 5.5V, VDDIO = 1.8V to 5.5V, VGND = 0V, CL = 200pF, RL = 2kI , TA = -40NC to +125NC, unless otherwise noted.) (Note 2) Note 2: Electrical specifications are production tested at TA = +25°C. Specifications over the entire operating temperature range are guaranteed by design and characterization.
PAGE 9
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface Typical Operating Characteristics (MAX5805, 12-bit performance, TA = +25NC, unless otherwise noted.) INL vs. CODE 0.6 0.1 -0.2 DNL (LSB) 0.2 0.2 INL (LSB) 0.4 0 -0.2 -0.4 -0.2 -0.6 -0.6 -0.3 -0.8 -0.8 -0.4 -1.0 -1.0 512 1024 1536 2048 2560 3072 3584 4096 0 DNL vs. CODE VDD = VREF 0.8 0.6 MAX INL 0.6 0.2 0 -0.2 0 -0.2 -0.4 -0.3 -0.6 -0.6 -0.
PAGE 10
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface Typical Operating Characteristics (continued) (MAX5805, 12-bit performance, TA = +25NC, unless otherwise noted.) 0.06 GAIN ERROR (VDD = 3V) 0.04 260 VREF = 2.048V, VDD = 3V VREF = 2.5V, VDD = 3V 220 180 0.
PAGE 11
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface Typical Operating Characteristics (continued) (MAX5805, 12-bit performance, TA = +25NC, unless otherwise noted.) SETTLING TO ±1 LSB (VDD = VREF = 5V, RL = 2kI, CL = 200pF) SETTLING TO ±1 LSB (VDD = VREF = 5V, RL = 2kI, CL = 200pF) MAX5803 toc18 5.
PAGE 12
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface Typical Operating Characteristics (continued) (MAX5805, 12-bit performance, TA = +25NC, unless otherwise noted.) DIGITAL FEEDTHROUGH (VDD = VREF = 5V, RL = 2kI, CL = 200pF) 3 VDD = VREF = 5V DAC AT MIDSCALE VDD = VREF MIDSCALE 2 1 ∆VOUT (mV) VOUT 125µV/div MAX5803 toc25 OUTPUT LOAD REGULATION MAX5803 toc24 VDD = 3V 0 DIGITAL FEEDTHROUGH = 0.
PAGE 13
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface Typical Operating Characteristics (continued) (MAX5805, 12-bit performance, TA = +25NC, unless otherwise noted.) 0.1Hz TO 10Hz OUTPUT NOISE, INTERNAL REFERENCE (VDD = 5V, VREF = 2.500V) 0.1Hz TO 10Hz OUTPUT NOISE, INTERNAL REFERENCE (VDD = 5V, VREF = 4.
PAGE 14
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface Pin Configurations TOP VIEW 1 LDAC 2 ADDR 3 SCL 4 SDA 5 10 REF + AUX MAX5803 MAX5804 MAX5805 *EP AUX 1 2 + 10 REF 9 OUT 8 GND 9 OUT LDAC 8 GND ADDR 3 7 VDD SCL 4 7 VDD 6 VDDIO SDA 5 6 VDDIO TDFN MAX5803 MAX5804 MAX5805 µMAX *CONNECTED TO GND Pin Description PIN NAME FUNCTION 1 AUX Active-Low Auxilliary Asynchronous Input
PAGE 15
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface Detailed Description The MAX5803/MAX5804/MAX5805 are single-channel, low-power, 8-/10-/12-bit voltage-output digital-to-analog converters (DACs) with an internal output buffer. The wide supply voltage range of 2.7V to 5.5V and low power consumption accommodate low-power and lowvoltage applications. The devices present a 100kI (typ) load to the external reference.
PAGE 16
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface data registers are cleared to their default/return values as defined by the configuration settings. Other userconfiguration settings are not affected. MAX5804/MAX5805 DAC output updates in response to each completed I/O CODE instruction update edge. A software LOAD command is also provided.
PAGE 17
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface Series resistors in line with SDA and SCL are optional. Series resistors protect the digital inputs of the MAX5803/ MAX5804/MAX5805 from high voltage spikes on the bus lines and minimize crosstalk and undershoot of the bus signals. The MAX5803/MAX5804/MAX5805 can accommodate bus voltages higher than VDD up to a limit of 5.
PAGE 18
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface I2C Broadcast Address A broadcast address is provided for the purpose of updating or configuring all MAX5803/MAX5804/MAX5805 devices on a given I2C bus. All MAX5803/MAX5804/ MAX5805 devices acknowledge and respond to the broadcast device address 00110010. The broadcast mode is intended for use in write mode only (as indicated by R/W = 0 in the address given).
PAGE 19
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface Interface Verification I2C Readback Operations Readback of all other registers is not directly supported. All requests to read unsupported registers read back the device’s current status and configuration settings as shown in Table 2.
PAGE 20
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface Sample command sequences are shown in Figure 7. The first command transfer is given in write mode with R/W = 0 and must be run to completion to qualify for interface verification readback.
PAGE 21
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface one time; partial and/or multiple attempts to readback executed in succession will not yield usable data. I2C Compatibility The MAX5803/MAX5804/MAX5805 are fully compatible with existing I2C systems. SCL and SDA are highimpedance inputs; SDA provides an open drain which pulls the data line low to transmit data or ACK pulses. Figure 8 shows a typical I2C application.
PAGE 22
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface CODE Command The CODE command (B[23:20] = 1000) updates the CODE register content for the DAC. Changes to the CODE register content based on this command will not affect the DAC output directly unless the LDAC input is in a low state. Otherwise, a subsequent hardware or software LOAD operation will be required to move this content to the active DAC latch.
PAGE 23
B23 1 1 1 1 0 CODE LOAD CODE_LOAD CODE_LOAD RETURN DAC COMMANDS COMMAND Maxim Integrated 1 0 0 0 0 B22 1 1 1 0 0 B21 1 1 0 1 0 B20 X X X X X B19 X X X X X B18 X X X X X B17 X X X X X B16 Table 4.
PAGE 24
COMMAND B23 B22 Maxim Integrated 0 0 0 0 SOFTWARE POWER CONFIG DEFAULT 1 1 1 0 0 1 0 1 0 1 0 1 0 0 1 1 B21 1 0 0 1 0 1 0 B20 X X X X X X B16 Type: 11 = 4.1V 10 = 2.0V 01 = 2.
PAGE 25
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface REF Command SOFTWARE Commands The REF (B[23:20] = 0010) command updates the global reference setting used for the DAC. Set B[17:16] = 00 to use an external reference for the DAC or set B[17:16] to 01, 10, or 11 to select either the 2.5V, 2.048V, or 4.096V internal reference, respectively.
PAGE 26
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface POWER Command mode, the DAC register retains its value so that the output is restored when the device powers up. The serial interface remains active in power-down mode with all registers accessible. The MAX5803/MAX5804/MAX5805 feature a softwarecontrolled POWER mode command (B[23:20] = 0100).
PAGE 27
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface CONFIG Command The CONFIG command (B[23:20] = 0101) updates the function of the AUX input enabling its gate or clear (default) operation mode. See Table 9. AUX Config settings are written by B[5:3]: GATE (011): AUX functions as a GATE. DAC code is gated to DEFAULT value input when pin is low. CLEAR (110): AUX functions as a CLR input (default).
PAGE 28
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface RETURN Command The RETURN command (B[23:20] = 0111) updates the RETURN register content for the DAC. If the DEFAULT configuration register is set to RETURN mode, the DAC will be cleared or gated to the RETURN register value in the event of a SW or HW CLEAR or GATE condition. It is not necessary to program this register if the DEFAULT = RETURN mode will not be used.
PAGE 29
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface Typical Operating Circuits 100nF 100nF VDD VDDIO RPU 5kI 4.7µF RPU 5kI OUT DAC VOUT = -VREF to +VREF SDA MICRO CONTROLLER SCL ADDR LDAC MAX5803 MAX5804 MAX5805 REF R1 AUX R2 R1 = R2 GND NOTE: BIPOLAR OPERATION SHOWN 100nF 100nF VDDIO RPU 5kI 4.
PAGE 30
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface Ordering Information PIN-PACKAGE RESOLUTION (BIT) INTERNAL REFERENCE TEMPCO (ppm/NC) MAX5803ATB+T PART 10 TDFN-EP* 8 10 (typ), 25 (max) MAX5803AUB+ 10 FMAX 8 10 (typ), 25 (max) MAX5804ATB+T 10 TDFN-EP* 10 10 (typ), 25 (max) MAX5804AUB+ 10 FMAX 10 10 (typ), 25 (max) MAX5805AAUB+ 10 FMAX 12 4 (typ), 12 (max) MAX5805BATB+T 10 TDFN-EP* 12 10 (typ),
PAGE 31
MAX5803/MAX5804/MAX5805 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface Revision History REVISION NUMBER REVISION DATE 0 11/12 Initial release 1 2/13 Released the MAX5803/MAX5804. Updated the Electrical Characteristics. 2 6/13 Released the MAX5803/MAX5804/MAX5805 TDFN packages. 3 11/14 Added details to AUX input description.