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PDF ADT7519 Data sheet ( Hoja de datos )
| Número de pieza | ADT7519 | |
| Descripción | Temperature Sensor | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ADT7519 (archivo pdf) en la parte inferior de esta página. Total 44 Páginas | ||
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SPI-/I2C-Compatible, Temperature Sensor,
4-Channel ADC and Quad Voltage Output
ADT7516/ADT7517/ADT7519
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: ±0.5°C typ
Supply range: 2.7 V to 5.5 V
DAC output range: 0 V to 2 VREF
Power-down current: <10 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-B 1
16 VOUT-C
VOUT-A 2 ADT7516/ 15 VOUT-D
VREF-IN 3 ADT7517/ 14 AIN4
CS 4 ADT7519 13 SCL/SCLK
GND 5 TOP VIEW 12 SDA/DIN
(Not to Scale)
VDD 6
11 DOUT/ADD
D+/AIN1 7
10 INT/INT
D–/AIN2 8
9 LDAC/AIN3
Figure 1.
GENERAL DESCRIPTION
The ADT7516/ADT7517/ADT75191 combine a 10-bit tempera-
ture-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
thewww.DataSheet4U.com 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 μs 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 can be updated
simultaneously using the software LDAC function or the
external LDAC pin. The ADT7516/ADT7517/ADT7519
incorporate a power-on reset circuit, ensuring that the DAC
output powers up to 0 V and remains there until a valid write
takes place.
The wide supply voltage range, low supply current, and SPI-/
I2C-compatible interface of the ADT7516/ADT7517/ADT7519
make them ideal for a variety of applications, including
personal computers, office equipment, and domestic appliances.
1 Protected by U.S. Patent Numbers: 6,169,442; 5,867,012; and 5,764,174. Other patents pending.
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.
1 page  
Parameter1
ON-CHIP REFERENCE
Reference Voltage4
Temperature Coefficient4
OUTPUT CHARACTERISTICS4
Output Voltage6
Min Typ
2.2662 2.28
80
0.001
DC Output Impedance
Short Circuit Current
Power-Up Time
DIGITAL INPUTS4
Input Current
VIL, Input Low Voltage
VIH, Input High Voltage
Pin Capacitance
SCL, SDA Glitch Rejection
0.5
25
16
2.5
5
1.89
3
LDAC Pulse Width
DIGITAL OUTPUT
Digital High Voltage, VOH
Output Low Voltage, VOL
Output High Current, IOH
Output Capacitance, COUT
INT/INT Output Saturation Voltage
I2C TIMING CHARACTERISTICS7, 8
Serial Clock Period, t1
Data In Setup Time to SCL High, t2
Data Out Stable after SCL Low, t3
SDA Low Setup Time to SCL
Low (Start Condition), t4
SDA High Hold Time after SCL
High (Stop Condition), t5
SDA and SCL Fall Time, t6
SDA and SCL Rise Time, t7
SPI TIMING CHARACTERISTICS4, 10
CS to SCLK Setup Time, t1
SCLK High Pulse Width, t2
SCLK Low Pulse Width, t3
Data Access Time after SCLK
Falling Edge, t411
Data Setup Time Prior to SCLK
Rising Edge, t5
Data Hold Time after SCLK
Rising Edge, t6
CS to SCLK Hold Time, t7
CS to DOUT High Impedance, t8
POWER REQUIREMENTS
VDD
VDD Settling Time
IDD (Normal Mode)12
20
2.4
2.5
50
0
50
50
0
50
50
20
0
0
2.7
2.2
Max Unit
2.2938
V
ppm/°C
VDD − 0.1 V
Ω
mA
mA
μs
μs
±1 μA
0.8 V
V
10 pF
50 ns
ns
V
0.4 V
1 mA
50 pF
0.8 V
μs
ns
ns
ns
ns
300
3009
ns
ns
ns
ns
ns
35 ns
ns
ns
μs
40 ns
5.5 V
50 ms
3 mA
3 mA
Rev. B | Page 5 of 44
ADT7516/ADT7517/ADT7519
Conditions/Comments
This is a measure of the minimum and maximum
drive capability of the output amplifier
VDD = 5 V
VDD = 3 V
Coming out of power-down mode, VDD = 5 V
Coming out of power-down mode, VDD = 3.3 V
VIN = 0 V to VDD
All digital inputs
Input filtering suppresses noise spikes of less
than 50 ns
Edge triggered input
ISOURCE = ISINK = 200 μA
IOL = 3 mA
VOH = 5 V
IOUT = 4 mA
Fast mode I2C, see Figure 2
See Figure 2
See Figure 2
See Figure 2
See Figure 2
See Figure 2
See Figure 3
See Figure 3
See Figure 3
See Figure 3
See Figure 3
See Figure 3
See Figure 3
VDD settles to within 10% of its final voltage level
VDD = 3.3 V, VIH = VDD, and VIL = GND
VDD = 5 V, VIH = VDD, and VIL = GND
5 Page 
TYPICAL PERFORMANCE CHARACTERISTICS
0.20
0.15
0.10
0.05
0
–0.05
–0.10
–0.15
–0.20
0
50 100 150 200 250
DAC CODE
Figure 8. ADT7519 Typical DAC INL Plot
ADT7516/ADT7517/ADT7519
0.10
0.08
0.06
0.04
0.02
0
–0.02
–0.04
–0.06
–0.08
–0.10
0
50 100 150 200 250
DAC CODE
Figure 11. ADT7519 Typical DAC DNL Plot
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
0
200 400 600 800 1000
DAC CODE
Figure 9. ADT7517 Typical DAC INL Plot
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
0
200 400 600 800 1000
DAC CODE
Figure 12. ADT7517 Typical DAC DNL Plot
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–2.5
0
500 1000 1500 2000 2500 3000 3500 4000
DAC CODE
Figure 10. ADT7516 Typical DAC INL Plot
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
500 1000 1500 2000 2500 3000 3500 4000
DAC CODE
Figure 13. ADT7516 Typical DAC DNL Plot
Rev. B | Page 11 of 44
11 Page | ||
| Páginas | Total 44 Páginas | |
| PDF Descargar | [ Datasheet ADT7519.PDF ] | |
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