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PDF LT1096L Data sheet ( Hoja de datos )
| Número de pieza | LT1096L | |
| Descripción | (LT1096 / LT1098) Micropower Sampling 8-Bit Serial I/O A/D Converters | |
| Fabricantes | Linear | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LT1096L (archivo pdf) en la parte inferior de esta página. Total 28 Páginas | ||
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LTC1096/LTC1096L
m LTC1098/LTC1098L
U.co Micropower Sampling
t4 8-Bit Serial I/O A/D Converters
taSheeFEATURES
.Das 80µA Maximum Supply Current
s 1nA Typical Supply Current in Shutdown
ws 8-Pin SO Plastic Package
wws 5V Operation (LTC1096/LTC1098)
s 3V Operation (LTC1096L/LTC1098L)(2.65V Min)
ms Sample-and-Hold
os 16µs Conversion Time
.cs 33kHz Sample Rate
s ±0.5LSB Total Unadjusted Error Over Temp
s Direct 3-Wire Interface to Most MPU Serial Ports and
UAll MPU Parallel I/O Ports
t4APPLICATI S
es Battery-Operated Systems
es Remote Data Acquisition
hs Battery Monitoring
s Battery Gas Gauges
Ss Temperature Measurement
tas Isolated Data Acquisition
, LTC and LT are registered trademarks of Linear Technology Corporation.
DESCRIPTIO
The LTC®1096/LTC1096L/LTC1098/LTC1098L are
micropower, 8-bit A/D converters that draw only 80µA of
supply current when converting. They automatically power
down to 1nA typical supply current whenever they are not
performing conversions. They are packaged in 8-pin SO
packages and have both 3V (L) and 5V versions. These
8-bit, switched-capacitor, successive approximation ADCs
include sample-and-hold. The LTC1096/LTC1096L have a
single differential analog input. The LTC1098/LTC1098L
offer a software selectable 2-channel MUX.
On-chip serial ports allow efficient data transfer to a wide
range of microprocessors and microcontrollers over three
wires. This, coupled with micropower consumption, makes
remote location possible and facilitates transmitting data
through isolation barriers.
These circuits can be used in ratiometric applications or
with an external reference. The high impedance analog
inputs and the ability to operate with reduced spans
(below 1V full scale) allow direct connection to sensors
and transducers in many applications, eliminating the
need for gain stages.
.DaTYPICAL APPLICATI
w10µW, S8 Package, 8-Bit A/D
Samples at 200Hz and Runs Off a 5V Battery
w 1µF 5V
w et4U.comANALOG INPUT
www.DataShe 10V TO 5V RANGE
CS/
SHUTDOWN
VCC
+IN CLK
LTC1096
–IN DOUT
GND VREF
MPU
(e.g., 8051)
P1.4
P1.3
P1.2
LTC1096/8 • TA01
Supply Current vs Sample Rate
1000
TA = 25°C
VCC = VREF = 5V
100
10
1
0.1
1 10 100
SAMPLE FREQUENCY, fSMPL (kHz)
LTC1096/98 • TPC03
1 page  
LTC1096/LTC1096L
LTC1098/LTC1098L
DIGITAL AND DC ELECTRICAL CHARACTERISTICS
LTC1096/LTC1098
VCC = 5V, VREF = 5V, unless otherwise noted.
SYMBOL PARAMETER
VIH High Level Input Voltage
VIL Low Level Input Voltage
IIH High Level Input Current
IIL Low Level Input Current
VOH High Level Output Voltage
VOL
IOZ
ISOURCE
ISINK
IREF
Low Level Output Voltage
Hi-Z Output Leakage
Output Source Current
Output Sink Current
Reference Current
ICC Supply Current
CONDITIONS
VCC = 5.25V
VCC = 4.75V
VIN = VCC
VIN = 0V
VCC = 4.75V, IO = 10µA
VCC = 4.75V, IO = 360µA
VCC = 4.75V, IO = 1.6mA
CS ≥ VIH
VOUT = 0V
VOUT = VCC
CS = VCC
tCYC ≥ 200µs, fCLK ≤ 50kHz
tCYC = 29µs, fCLK = 500kHz
CS = VCC
LTC1096, tCYC ≥ 200µs, fCLK ≤ 50kHz
LTC1096, tCYC = 29µs, fCLK = 500kHz
LTC1098, tCYC ≥ 200µs, fCLK ≤ 50kHz
LTC1098, tCYC = 29µs, fCLK = 500kHz
LTC1096/LTC1098
VCC = 3V, VREF = 2.5V, unless otherwise noted.
SYMBOL
VIH
VIL
IIH
IIL
VOH
PARAMETER
High Level Input Voltage
Low Level Input Voltage
High Level Input Current (Note 9)
Low Level Input Current (Note 9)
High Level Output Voltage
VOL
IOZ
ISOURCE
ISINK
IREF
Low Level Output Voltage
Hi-Z Output Leakage (Note 9)
Output Source Current (Note 9)
Output Sink Current (Note 9)
Reference Current (Note 9)
ICC Supply Current (Note 9)
CONDITIONS
VCC = 3.6V
VCC = 3V
VIN = VCC
VIN = 0V
VCC = 3V, IO = 10µA
VCC = 3V, IO = 360µA
VCC = 3V, IO = 400µA
CS ≥ VIH
VOUT = 0V
VOUT = VCC
CS = VCC
tCYC ≥ 200µs, fCLK ≤ 50kHz
tCYC = 58µs, fCLK = 250kHz
CS = VCC
LTC1096, tCYC ≥ 200µs, fCLK ≤ 50kHz
LTC1096, tCYC = 58µs, fCLK = 250kHz
LTC1098, tCYC ≥ 200µs, fCLK ≤ 50kHz
LTC1098, tCYC = 58µs, fCLK = 250kHz
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
MIN TYP MAX
2.0
0.8
2.5
– 2.5
4.5 4.74
2.4 4.72
0.4
±3.0
– 25
45
0.001 2.5
3.500 7.5
35.000 50.0
0.001 3.0
40 80
120 180
44 88
155 230
MIN TYP MAX
1.9
0.45
2.5
– 2.5
2.3 2.69
2.1 2.64
0.3
±3.0
– 10
15
0.001 2.5
3.500 7.5
35.000 50.0
0.001 3.0
40 80
120 180
44 88
155 230
UNITS
V
V
µA
µA
V
V
V
µA
mA
mA
µA
µA
µA
µA
µA
µA
µA
µA
UNITS
V
V
µA
µA
V
V
V
µA
mA
mA
µA
µA
µA
µA
µA
µA
µA
µA
5
5 Page 
TEST CIRCUITS
On and Off Channel Leakage Current
5V
ION
A ON CHANNEL
IOFF
A
POLARITY
••••
OFF
CHANNEL
LTC1096/98 • TC1
LTC1096/LTC1096L
LTC1098/LTC1098L
Load Circuit for tdDO, tr and tf
DOUT
1.4V
3kΩ
100pF
TEST POINT
LTC1096/98 • TC02
Voltage Waveforms for DOUT Delay Time, tdDO
CLK
DOUT
VIL
tdDO
VOH
VOL
LTC1096/98 • TC03
Voltage Waveforms for DOUT Rise and Fall Times, tr, tf
DOUT
tr
VOH
VOL
tf LTC1096/98 • TC04
Load Circuit for tdis and ten
TEST POINT
DOUT
3k
100pF
5V tdis WAVEFORM 2, ten
tdis WAVEFORM 1
LTC1096/98 • TC05
Voltage Waveforms for tdis
CS 2.0V
DOUT
WAVEFORM 1
(SEE NOTE 1)
90%
tdis
DOUT
WAVEFORM 2
(SEE NOTE 2)
10%
NOTE 1: WAVEFORM 1 IS FOR AN OUTPUT WITH INTERNAL CONDITIONS SUCH
THAT THE OUTPUT IS HIGH UNLESS DISABLED BY THE OUTPUT CONTROL.
NOTE 2: WAVEFORM 2 IS FOR AN OUTPUT WITH INTERNAL CONDITIONS SUCH
THAT THE OUTPUT IS LOW UNLESS DISABLED BY THE OUTPUT CONTROL.
LTC1096/98 • TC06
11
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet LT1096L.PDF ] | |
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