ADT7519ARQZ-REEL ,SPI/I2C Compatible, Temperature Sensor, 4-Channel ADC and Quad Voltage Output DACSpecifications subject to change without notice. No license is granted by implication www.analog.c ..
ADT7519ARQZ-REEL7 ,SPI/I2C Compatible, Temperature Sensor, 4-Channel ADC and Quad Voltage Output DACCharacteristics ....... 13 SMBus Alert Response 43 Theory of Operation ....... 19 Outline Dimension ..
ADT75ARMZ-REEL , -1°C Accurate, 12-Bit Digital Temperature Sensor
ADT75ARMZ-REEL7 , -1°C Accurate, 12-Bit Digital Temperature Sensor
ADT75ARMZ-REEL7 , -1°C Accurate, 12-Bit Digital Temperature Sensor
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ADT7516ARQ-ADT7517ARQ-ADT7519ARQ-ADT7519ARQZ-ADT7519ARQZ-REEL-ADT7519ARQZ-REEL7
SPI/I2C Compatible,Temperature Sensor, Four Channel ADC and Quad Voltage Output DAC
SPI/I2C Compatible, Temperature Sensor,
4-Channel ADC and Quad Voltage Output DAC
Rev. A
FEATURES
ADT7516—four 12-bit DACs
ADT7517—four 10-bit DACs
ADT7519—four 8-bit DACs
Buffered voltage output
Guaranteed monotonic by design over all codes
10-bit temperature-to-digital converter
10-bit 4-channel ADC
DC input bandwidth
Input range: 0 V to 2.28 V
Temperature range: –40°C to +120°C
Temperature sensor accuracy of typ: ±0.5°C
Supply range: 2.7 V to 5.5 V
DAC output range: 0 V to 2 VREF
Power-down current: 1 µA
Internal 2.28 VREF option
Double-buffered input logic
Buffered reference input
Power-on reset to 0 V DAC output
Simultaneous update of outputs (LDAC function)
On-chip rail-to-rail output buffer amplifier
SPI®, I2C®, QSPI™, MICROWIRE™, and DSP compatible
4-wire serial interface
SMBus packet error checking (PEC) compatible
16-lead QSOP package
APPLICATIONS
Portable battery-powered instruments
Personal computers
Smart battery chargers
Telecommunications systems
Electronic text equipment
Domestic appliances
Process control
PIN CONFIGURATION
VOUT-BVOUT-C
VOUT-AVOUT-D
VREF-INAIN4SCL/SCLK
GNDSDA/DIN
VDDDOUT/ADD
D+/AIN1INT/INT
D–/AIN2LDAC/AIN302883-A
-006Figure 1.
GENERAL DESCRIPTION The ADT7516/ADT7517/ADT75191 combine a 10-bit temp-
erature-to-digital converter, a 10-bit 4-channel ADC, and a
quad 12-/10-/8-bit DAC, respectively, in a 16-lead QSOP
package. The parts also include a band gap temperature sensor
and a 10-bit ADC to monitor and digitize the temperature
reading to a resolution of 0.25°C.
The ADT7516/ADT7517/ ADT7519 operate from a single 2.7 V
to 5.5 V supply. The input voltage range on the ADC channels is
0 V to 2.28 V, and the input bandwidth is dc. The reference for
the ADC channels is derived internally. The output voltage of
the DAC ranges from 0 V to VDD, with an output voltage settling
time of 7 ms typical.
The ADT7516/ADT7517/ADT7519 provide two serial interface
options: a 4-wire serial interface that is compatible with SPI,
QSPI, MICROWIRE, and DSP interface standards, and a 2-wire
SMBus/I2C interface. They feature a standby mode that is
controlled through the serial interface.
The reference for the four DACs is derived either internally or
from a reference pin. The outputs of all DACs may be updated
simultaneously using the software LDAC function or the
external LDAC pin. The ADT7516/ADT7517/ADT7519
incorporate a power-on reset circuit, which ensures that the
DAC output powers up to 0 V and remains there until a valid
write takes place.
The ADT7516/ADT7517/ADT7519’s wide supply voltage range,
low supply current, and SPI/I2C compatible interface make
them ideal for a variety of applications, including personal
computers, office equipment, and domestic appliances.
Protected by the following U.S. Patent Numbers: 6,169,442; 5,867,012;
5,764174. Other patents pending.
TABLE OF CONTENTS Specifications.....................................................................................3
DAC AC Characteristics..............................................................6
Functional Block Diagram..............................................................8
Absolute Maximum Ratings............................................................9
ESD Caution..................................................................................9
Pin Configuration and Functional Descriptions........................10
Terminology....................................................................................11
Typical Performance Characteristics...........................................13
Theory of Operation......................................................................19
Power-Up Calibration................................................................19
Conversion Speed.......................................................................19
Function Description—Voltage Output..................................20
Functional Description—Analog Inputs.................................23
ADC Transfer Function.............................................................23
Functional Description—Measurement..................................25
ADT7516/ADT7517/ADT7519 Registers...............................28
Serial Interface............................................................................37
SMBus Alert Response...............................................................43
Outline Dimensions.......................................................................44
Ordering Guide..........................................................................44
REVISION HISTORY
8/04—Data Sheet Changed from Rev. 0 to Rev. A Updated Format......................................................................Universal
Deleted ADT7518
Added ADT7519.....................................................................Universal
Change to Internal VREF Value..............................................................5
Change to Equation.............................................................................26
7/03—Initial Version: Rev. 0 SPECIFICATIONS
Table 1. Temperature range is as follows: A version: –40°C to +120°C. VDD = 2.7 V to 5.5 V, GND = 0 V, REFIN = 2.25 V, unless
otherwise noted.
