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PDF MAX5802 Data sheet ( Hoja de datos )
| Número de pieza | MAX5802 | |
| Descripción | (MAX5800 - MAX5802) 8-/10-/12-Bit Buffered Output DACs | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX5802 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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EVALUATION KIT AVAILABLE
MAX5800/MAX5801/MAX5802
Ultra-Small, Dual-Channel, 8-/10-/12-Bit Buffered Output
DACs with Internal Reference and I2C Interface
General Description
The MAX5800/MAX5801/MAX5802 2-channel, low-power,
8-/10-/12-bit, voltage-output 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
MAX5800/MAX5801/MAX5802 accept a wide supply
voltage range of 2.7V to 5.5V with extremely low power
(1.5mW) 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 MAX5800/MAX5801/MAX5802 have an I2C-compatible,
2-wire interface that operates at clock rates up to
400kHz. The DAC output is buffered and has a low sup-
ply current of less than 250FA per channel and a low
offset error of Q0.5mV (typ). On power-up, the MAX5800/
MAX5801/MAX5802 reset the DAC outputs to zero, pro-
viding additional safety for applications that drive valves
or other transducers which need to be off on power-up.
The internal reference is initially powered down to allow
use of an external reference. The MAX5800/MAX5801/
MAX5802 allow simultaneous output updates using soft-
ware LOAD commands.
A clear logic input (CLR) allows the contents of the CODE
and the DAC registers to be cleared asynchronously and
sets the DAC outputs to zero. The MAX5800/MAX5801/
MAX5802 are available in a small 10-pin µMAXM and an
ultra-small, 10-pin TDFN package 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
µMAX is a registered trademark of Maxim Integrated Products, Inc.
Ordering Information appears at end of data sheet.
Benefits and Features
S Two High-Accuracy DAC Channels
12-Bit Accuracy Without Adjustment
±1 LSB INL Buffered Voltage Output
Monotonic Over All Operating Conditions
Independent Mode Settings for Each DAC
S Three Precision Selectable Internal References
2.048V, 2.500V, or 4.096V
S Internal Output Buffer
Rail-to-Rail Operation with External Reference
4.5µs Settling Time
Outputs Directly Drive 2kI Loads
S Small 5mm x 3mm 10-Pin µMAX or Ultra-Small
3mm x 3mm 10-Pin TDFN Package
S Wide 2.7V to 5.5V Supply Range
S Separate 1.8V to 5.5V VDDIO Power-Supply Input
S Fast 400kHz I2C-Compatible, 2-Wire Serial
Interface
S Power-On-Reset to Zero-Scale DAC Output
www.DataSheet.net/
S CLR For Asynchronous Control
S Three Software-Selectable Power-Down Output
Impedances
1kI, 100kI, or High Impedance
S Low 350µA Supply Current at 3V VDD
Functional Diagram
VDDIO
VDD REF
SCL
SDA
ADDR
CLR
I2C SERIAL
INTERFACE
POR
INTERNAL REFERENCE/
EXTERNAL BUFFER
CODE
REGISTER
DAC
LATCH
8 -/10-/12-BIT
DAC
CODE
CLEAR /
RESET
LOAD
CLEAR /
RESET
DAC CONTROL LOGIC
POWER-DOWN
GND
MAX5800
MAX5801
MAX5802
1 OF 2 DAC CHANNELS
BUFFER
OUTA
OUTB
100kI 1kI
For related parts and recommended products to use with this part, refer to: www.maximintegrated.com/MAX5800.related
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-6461; Rev 0; 9/12
Datasheet pdf - http://www.DataSheet4U.co.kr/
1 page  
MAX5800/MAX5801/MAX5802
Ultra-Small, Dual-Channel, 8-/10-/12-Bit Buffered Output
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. Typical
values are at TA = +25NC.) (Note 2)
PARAMETER
REFERENCE INPUT
Reference Input Range
Reference Input Current
Reference Input Impedance
REFERENCE OUPUT
Reference Output Voltage
Reference Output Noise Density
Integrated Reference Output
Noise
Reference Temperature
Coefficient (Note 9)
Reference Drive Capacity
Reference Capacitive Load
Reference Load Regulation
Reference Line Regulation
POWER REQUIREMENTS
Supply Voltage
I/O Supply Voltage
Interface Supply Current
(Note 10)
SYMBOL
CONDITIONS
VREF
IREF
RREF
VREF = VDD = 5.5V
VREF
VREF = 2.048V, TA = +25NC
VREF = 2.5V, TA = +25NC
VREF = 4.096V, TA = +25NC
VREF = 2.048V
f = 1kHz
f = 10kHz
VREF = 2.500V
f = 1kHz
f = 10kHz
VREF = 4.096V
f = 1kHz
f = 10kHz
www.DataSheet.net/
f = 0.1Hz to 10Hz
VREF = 2.048V
f = 0.1Hz to 10kHz
f = 0.1Hz to 300kHz
f = 0.1Hz to 10Hz
VREF = 2.500V
f = 0.1Hz to 10kHz
f = 0.1Hz to 300kHz
f = 0.1Hz to 10Hz
VREF = 4.096V
f = 0.1Hz to 10kHz
f = 0.1Hz to 300kHz
MAX5802A
MAX5800/MAX5801/MAX5802B
External load
ISOURCE = 0 to 500FA
VDD
VDDIO
IDDIO
VREF = 4.096V
All other options
MIN
1.24
75
2.043
2.494
4.086
4.5
2.7
1.8
TYP
55
100
2.048
2.5
4.096
129
122
158
151
254
237
12
110
390
15
129
430
20
205
525
Q3.7
Q10
25
200
2
0.05
MAX UNITS
VDD
V
74 FA
kI
2.053
2.506
4.106
V
nV/√Hz
µVP-P
Q10
Q25
ppm/NC
kI
pF
mV/mA
mV/V
5.5
5.5
V
5.5 V
1 FA
Maxim Integrated
5
Datasheet pdf - http://www.DataSheet4U.co.kr/
5 Page 
MAX5800/MAX5801/MAX5802
Ultra-Small, Dual-Channel, 8-/10-/12-Bit Buffered Output
DACs with Internal Reference and I2C Interface
Typical Operating Characteristics (continued)
(MAX5802, 12-bit performance, TA = +25°C, unless otherwise noted.)
MAJOR CODE TRANSITION GLITCH ENERGY
(VDD = VREF = 5V, RL = 2kI, CL = 200pF)
MAX5800 toc19
1 LSB CHANGE
(MIDCODE TRANSITION
FROM 0x800 TO 0x7FF)
GLITCH ENERGY = 6nV*s
VOUT vs. TIME TRANSIENT
EXITING POWER-DOWN
MAX5800 toc20
0V
36TH EDGE
VSCL
5V/div
DAC OUTPUT
500mV/div
VOUT
3.3mV/div
TRIGGER PULSE
5V/div
2µs/div
POWER-ON RESET TO 0V
MAX5800 toc21
0V
VDD = 5V, VREF = 2.5V
EXTERNAL
10µs /div
CHANNEL-TO-CHANNEL FEEDTHROUGH
(VDD = VREF = 5V, TA = +25NC,
RL = 2kI, CL = 200pF)
MAX5800 toc22
VDD = VREF = 5V
10kI LOAD TO VDD
VDD
2V/div
www.DataSheet.net/
RL = 2kI
0V
NO LOAD
TRANSITIONING
DAC
1V/div
STATIC DAC
1.25mV/div
VOUT
2V/div
TRANSITIONING DAC: 0 TO FULL SCALE
STATIC DAC: MIDSCALE
TRIGGER PULSE
0V
ANALOG CROSSTALK = 3.5nV*s
10V/div
20µs /div
4µs /div
CHANNEL-TO-CHANNEL FEEDTHROUGH
(VDD = VREF = 5V, TA = +25NC, NO LOAD)
MAX5800 toc23
NO LOAD
NO LOAD
TRANSITIONING
DAC
1V/div
STATIC DAC
1.25mV/div
CHANNEL-TO-CHANNEL FEEDTHROUGH
(VDD = 5V, VREF = 4.096V (INTERNAL),
TA = +25NC, RL = 2kI, CL = 200pF)
MAX5800 toc24
RL = 2kI
NO LOAD
TRANSITIONING
DAC
1V/div
STATIC DAC
1.25mV/div
TRANSITIONING DAC: 0 TO FULL SCALE
STATIC DAC: MIDSCALE
ANALOG CROSSTALK = 1.8nV*s
TRIGGER PULSE
10V/div
5µs /div
TRANSITIONING DAC: 0 TO FULL SCALE
STATIC DAC: MIDSCALE
ANALOG CROSSTALK = 3.3nV*s
TRIGGER PULSE
10V/div
5µs /div
Maxim Integrated
11
Datasheet pdf - http://www.DataSheet4U.co.kr/
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MAX5802.PDF ] | |
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