ISL21400 Datasheet PDF - Intersil Corporation
| Part Number | ISL21400 | |
| Description | Programmable Temperature Slope Voltage Reference | |
| Manufacturers | Intersil Corporation | |
| Logo |  |
|
|
There is a preview and ISL21400 download ( pdf file ) link at the bottom of this page. Total 17 Pages | ||
Preview 1 page No Preview Available !
®
Data Sheet
December 14, 2006
ISL21400
FN8091.0
Programmable Temperature Slope
Voltage Reference
The ISL21400 features a precision voltage reference
combined with a temperature sensor whose output voltage
varies linearly with temperature. The precision 1.20V
reference has a very low temperature coefficient (tempco),
and its output voltage is scaled by an internal DAC (VREF) to
produce a temperature stable output voltage that is
programmable from 0V to 1.20V. The output voltage from the
temperature sensor (VTS) is summed with VREF to produce
a temperature dependent output voltage.
The slope of the VTS portion of the output voltage can be
programmed to be positive or negative in the range
-2.1mV/°C to +2.1mV/°C. A programmable gain amplifier
(PGA) sums the VTS and the VREF voltages and provides
gains of 1x, 2x, and 4x to scale the output up to 4.8V and the
slope to ±8.4mV/°C.
The VREF and VTS terms are programmable with 8 bits of
resolution via an I2C bus and the values are stored in non-
volatile registers. The PGA gain is also set via the I2C bus
and the value is stored in a non-volatile register. Non-volatile
memory storage assures the programmed settings are
www.DataSheet4U.com
retained on power-down, eliminating the need for software
initialization at device power-up.
Temperature Characteristics Curve
3.0
AV = 2
2.5
2.0
TS = 0
1.5
1.0
TS = 0
0.5
TS = 127
AV = 1
TS = 255
TS = 255 TS = 127
0.0
-40
-15 10
35
TEMPERATURE (°C)
60
85
Features
• Programmable reference voltage
• Programmable temperature slope
• Programmable Gain Amplifier
• Non-volatile storage of programming registers
• I2C serial interface
• 2% total accuracy over temperature and VCC range
• 200µA typical active supply current
• Operating temperature range = -40°C to +85°C
• 8 Ld MSOP package
Applications
• RF power amplifier bias compensation
• LCD bias compensation
• Laser diode bias compensation
• Sensor bias and linearization
• Data acquisition systems
• Variable DAC reference
• Amplifier biasing
Pinout
ISL21400
(8 LD MSOP)
TOP VIEW
A2 1
A1 2
A0 3
VSS 4
8 VCC
7 VOUT
6 SDA
5 SCL
Ordering Information
PART NUMBER (Note)
PART MARKING
VDD RANGE
(V)
TEMP RANGE
(°C)
PACKAGE
PKG. DWG. #
ISL21400IU8Z
DEW
2.7 to 5.5
-40 to +85
8 Ld MSOP (Pb-free)
M8.118
ISL21400IU8Z-TK
DEW
2.7 to 5.5
-40 to +85
8 Ld MSOP (Pb-free)
M8.118
NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination
finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at
Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
|
| |
 
ISL21400
Serial Interface Specification (for SCL, SDA, A0, A1, A2 unless specified otherwise) (Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
TYP
MIN (Note 2)
tsp Pulse Width Suppression Time at Any pulse narrower than the
SDA and SCL Inputs
max spec is suppressed
(Note 3)
tAA SCL Falling Edge to SDA Output SCL falling edge crossing
Data Valid
30% of VCC, until SDA exits
the 30% to 70% of VCC
window (Note 3)
tBUF
Time the Bus Must be Free Before
the Start of a New Transmission
SDA crossing 70% of VCC
during a STOP condition, to
SDA crossing 70% of VCC
during the following START
condition (Note 3)
1300
tLOW
Clock LOW Time
Measured at the 30% of VCC
crossing (Note 3)
1300
tHIGH
Clock HIGH Time
Measured at the 70% of VCC
crossing (Note 3)
600
tSU:STA START Condition Setup Time
tHD:STA START Condition Hold Time
tSU:DAT Input Data Setup Time
tHD:DAT Input Data Hold Time
tSU:STO STOP Condition Setup Time
tHD:STO
STOP Condition Hold Time for
Read, or Volatile Only Write
tDH Output Data Hold Time
tR SDA and SCL Rise Time
SCL rising edge to SDA
falling edge; both crossing
70% of VCC (Note 3)
From SDA falling edge
crossing 30% of VCC to SCL
falling edge crossing 70% of
VCC (Note 3)
From SDA exiting the 30% to
70% of VCC window, to SCL
rising edge crossing 30% of
VCC (Note 3)
From SCL rising edge
crossing 70% of VCC to SDA
entering the 30% to 70% of
VCC window (Note 3)
From SCL rising edge
crossing 70% of VCC, to SDA
rising edge crossing 30% of
VCC (Note 3)
From SDA rising edge to SCL
falling edge; both crossing
70% of VCC (Note 3)
From SCL falling edge
crossing 30% of VCC, until
SDA enters the 30% to 70%
of VCC window (Note 3)
From 30% to 70% of VCC
(Note 3)
600
600
100
0
600
1300
0
20 +
0.1 x Cb
tF SDA and SCL Fall Time
From 70% to 30% of VCC
(Note 3)
20 +
0.1 x Cb
Cb Capacitive Loading of SDA or SCL Total on-chip and off-chip
(Note 4)
10
MAX
50
900
250
250
400
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
pF
5 FN8091.0
December 14, 2006
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for ISL21400 electronic component. |
| Information | Total 17 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ ISL21400.PDF Datasheet ] | |
Share Link :
Electronic Components Distributor
|
An electronic components distributor is a company that sources, stocks, and sells electronic components to manufacturers, engineers, and hobbyists. |
| SparkFun Electronics | Allied Electronics | DigiKey Electronics | Arrow Electronics |
| Mouser Electronics | Adafruit | Newark | Chip One Stop |
Featured Datasheets
| Part Number | Description | MFRS |
| ISL21400 | The function is Programmable Temperature Slope Voltage Reference. Intersil Corporation | |
Semiconductors commonly used in industry:
1N4148 |
BAW56 |
1N5400 |
NE555 | | ||
Quick jump to:
ISL2
1N4
2N2
2SA
2SC
74H
BC
HCF
IRF
KA | ||