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CAT511 PDF даташит

Спецификация CAT511 изготовлена ​​​​«Catalyst Semiconductor» и имеет функцию, называемую «8-Bit Digital POT with Independent Reference Inputs».

Детали детали

Номер произв CAT511
Описание 8-Bit Digital POT with Independent Reference Inputs
Производители Catalyst Semiconductor
логотип Catalyst Semiconductor логотип 

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CAT511 Даташит, Описание, Даташиты
Advanced Information
CAT511
8-Bit Digital POT with Independent Reference Inputs
FEATURES
s Output settings retained without power
s Output range includes both supply rails
s Programming voltage generated on-chip
s Serial µP interface
s Single supply operation: 2.7V-5.5V
APPLICATIONS
s Automated product calibration.
s Remote control adjustment of equipment
s Offset, gain and zero adjustments in Self-
Calibrating and Adaptive Control systems.
s Tamper-proof calibrations.
DESCRIPTION
The CAT511 is an 8-Bit Memory DAC designed as an
electronic replacement for mechanical potentiometers
and trim pots. Intended for final calibration of products
such as camcorders, fax machines and cellular tele-
phones on automated high volume production lines and
systems capable of self calibration, it is also well suited
for applications were equipment requiring periodic ad-
justment is either difficult to access or located in a
hazardous environment.
The CAT511 consists of a programmable DAC with
independent high and low reference inputs and is ca-
pable of a rail to rail output swing. Output settings, stored
non-volatile EEPROM memory, are not lost when the
device is powered down and are automatically rein-
stated when power is returned. The output can be
dithered to test new output values without effecting the
stored setting and can be read back without disturbing
the DAC’s output.
FUNCTIONAL DIAGRAM
VDD
1
RDY/BSY
3
SERIAL DATA OUTPUT
6
DO
PROG
7
PROGRAM
CONTROL
CLK
2
4
CS
5
DI
DATA
CONTROLLER
EEPROM
LATCH
DAC 1
14 VREF H1
12 VOUT 1
9 VREF L1
H.V.
CHARGE
PUMP
CAT511
8
GND
Control of the CAT511 is accomplished with a simple 3
wire serial interface. A Chip Select pin allows several
CAT511's to share a common serial interface and com-
munications back to the host controller is via a single
serial data line thanks to the CAT511’s Tri-Stated Data
Output pin. A RDY/BSYoutput working in concert with
an internal low voltage detector signals proper operation
of EEPROM Erase/Write cycle.
The CAT511 operates from a single 3–5 volt power
supply. The high voltage required for EEPROM Erase/
Write operations is generated on-chip.
The CAT511 is available in the 0°C to 70°C Commercial
and –40°C to +85°C Industrial operating temperature
ranges and offered in 14-pin plastic DIP and Surface
mount packages.
PIN CONFIGURATION
DIP Package (P)
SOIC Package (J)
VDD
CLK
RDY/BSY
CS
DI
DO
PROG
1 14
2 13
3 12
4 11
CAT511
5 10
69
78
VREF H1
NC
VOUT1
NC
NC
VREF L1
GND
VDD
CLK
RDY/BSY
CS
DI
DO
PROG
1 14
2 13
3 12
4 11
CAT511
5 10
69
78
VREF H1
NC
VOUT1
NC
NC
VREF L1
GND
© 2001 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1









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CAT511 Даташит, Описание, Даташиты
CAT511
ABSOLUTE MAXIMUM RATINGS
Supply Voltage*
VDD to GND ...................................... –0.5V to +7V
Inputs
CLK to GND ............................ –0.5V to VDD +0.5V
CS to GND .............................. –0.5V to VDD +0.5V
DI to GND ............................... –0.5V to VDD +0.5V
RDY/BSY to GND ................... –0.5V to VDD +0.5V
PROG to GND ........................ –0.5V to VDD +0.5V
VREFH to GND ........................ –0.5V to VDD +0.5V
VREFL to GND ......................... –0.5V to VDD +0.5V
Outputs
D0 to GND ............................... –0.5V to VDD +0.5V
VOUT to GND ........................... –0.5V to VDD +0.5V
Advanced Information
Operating Ambient Temperature
Commercial (‘C’ suffix) .................... 0°C to +70°C
Industrial (‘I’ suffix) ...................... – 40°C to +85°C
Junction Temperature ..................................... +150°C
Storage Temperature ....................... –65°C to +150°C
Lead Soldering (10 sec max) .......................... +300°C
* Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Absolute
Maximum Ratings are limited values applied individually while
other parameters are within specified operating conditions,
and functional operation at any of these conditions is NOT
implied. Device performance and reliability may be impaired by
exposure to absolute rating conditions for extended periods of
time.
RELIABILITY CHARACTERISTICS
Symbol
VZAP(1)
ILTH(1)(2)
Parameter
ESD Susceptibility
Latch-Up
Min
2000
100
Max
Units
Volts
mA
Test Method
MIL-STD-883, Test Method 3015
JEDEC Standard 17
Notes: 1. This parameter is tested initially and after a design or process change that affects the parameter.
2. Latch-up protection is provided for stresses up to 100mA on address and data pins from –1V to VCC + 1V.
DC ELECTRICAL CHARACTERISTICS: VDD = +2.7V to +5.5V, VREFH = VDD, VREFL = 0V, unless otherwise specified
Symbol Parameter
Conditions
Min Typ Max Units
Accuracy
INL
Resolution
Integral Linearity Error
DNL
Differential Linearity Error
Logic Inputs
IIH Input Leakage Current
IIL Input Leakage Current
VIH High Level Input Voltage
VIL Low Level Input Voltage
References
VRH VREFH Input Voltage Range
VRL VREFL Input Voltage Range
ZIN VREFH–VREFL Resistance
Logic Outputs
8
ILOAD = 250 nA, TR = C
TR = I
ILOAD = 1 µA, TR = C
TR = I
ILOAD = 250 nA, TR = C
TR = I
ILOAD = 1 µA, TR = C
TR = I
VIN = VDD
VIN = 0V
2
0
2.7
GND
— — Bits
0.6 ± 1 LSB
0.6 ± 1 LSB
1.2 — LSB
1.2 — LSB
0.25
± 0.5
LSB
0.25
± 0.5
LSB
0.5 — LSB
0.5 — LSB
— 10 µA
— –10 µA
VDD
V
— 0.8 V
VDD
V
— VDD -2.7 V
28K —
VOH
High Level Output Voltage
IOH = – 40 µA
VDD–0.3
—V
VOL
Low Level Output Voltage
IOL = 1 mA, VDD = +5V
— 0.4 V
IOL = 0.4 mA, VDD = +3V
— 0.4 V
2









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CAT511 Даташит, Описание, Даташиты
Advanced Information
CAT511
DC ELECTRICAL CHARACTERISTICS (Cont.):
VDD = +2.7V to +5.5V, VREFH = VDD, VREFL = 0V, unless otherwise specified
Symbol Parameter
Analog Output
FSO
Full-Scale Output Voltage
ZSO
Zero-Scale Output Voltage
IL DAC Output Load Current
ROUT
DAC Output Impedance
PSSR
Power Supply Rejection
Temperature
TCO VOUT Temperature Coefficient
TCREF
Temperature Coefficient of
VREF Resistance
Power Supply
IDD1 Supply Current (Read)
IDD2 Supply Current (Write)
VDD Operating Voltage Range
Conditions
Min
VR = VREFH – VREFL
VR = VREFH – VREFL
VDD = VREFH = +5V
VDD = VREFH = +3V
ILOAD = 1 µA
0.99 VR
VDD = +5V, ILOAD = 250nA
VREFH= +5V, VREFL = 0V
VREFH to VREFL
Normal Operating
VDD = 5V
VDD = 3V
2.7
Typ Max
0.995 VR
0.005 VR
0.01 VR
1
100K
150K
1
— 200
700 —
40 50
1.2 2.0
.6 1.2
— 5.5
AC ELECTRICAL CHARACTERISTICS:
VDD = +2.7V to +5.5V, VREFH = VDD, VREFL = 0V, unless otherwise specified
Symbol
Digital
tCSMIN
tCSS
tCSH
tDIS
tDIH
tDO1
tDO0
tHZ
tLZ
tBUSY
tPS
tPROG
tCLKH
tCLKL
fC
Analog
tDS
Parameter
Minimum CS Low Time
CS Setup Time
CS Hold Time
DI Setup Time
DI Hold Time
Output Delay to 1
Output Delay to 0
Output Delay to High-Z
Output Delay to Low-Z
Erase/Write Cycle Time
PROG Setup Time
Minimum Pulse Width
Minimum CLK High Time
Minimum CLK Low Time
Clock Frequency
DAC Settling Time to 1 LSB
Pin Capacitance
CIN Input Capacitance
COUT
Output Capacitance
Conditions
Min
CL = 100 pF,
see note 1
150
100
0
50
50
150
700
500
300
DC
CLOAD = 10 pF, VDD = +5V
CLOAD = 10 pF, VDD = +3V
VIN = 0V, f = 1 MHz(2)
VOUT = 0V, f = 1 MHz2)
Notes: 1. All timing measurements are defined at the point of signal crossing VDD / 2.
2. These parameters are periodically sampled and are not 100% tested.
Typ Max
——
——
——
——
——
— 150
— 150
400 —
400 —
45
——
——
——
——
—1
3 10
6 10
8—
6—
Units
V
V
µA
LSB / V
µV/ °C
ppm / °C
µA
mA
mA
V
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
ns
ns
ns
ns
MHz
µs
µs
pF
pF
3










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