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LTC1605-1CG#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22
LTC1605-1/LTC1605-2
1
160512fa
For more information www.linear.com/LTC1605-1
Typical applicaTion
FeaTures DescripTion
Single Supply 16-Bit, 100ksps,
Sampling ADCs
The LT C
®
1605-1/LTC1605-2 are 100ksps, sampling
16-bit A/D converters that draw only 55mW (typical)
from
a single 5V supply. These easy-to-use devices include a
sample-and-hold, precision reference, switched capacitor
successive approximation A/D and trimmed internal clock.
The LTC1605-1’s input range is 0V to 4V while the
LTC1605-2’s input range is ±4V. An external reference
can be used if greater accuracy over temperature is
needed.
The ADC has a microprocessor compatible
,
16-bit or two
byte parallel output port. A convert start input and a data
ready signal (BUSY) ease connections to FIFOs, DSPs and
microprocessors.
applicaTions
n
Sample Rate: 100ksps
n
Complete 16-Bit Solution on a Single 5V Supply
n
Unipolar Input Range: 0V to 4V (LTC1605-1)
n
Bipolar Input Range: ±4V (LTC1605-2)
n
Power Dissipation: 55mW Typ
n
Signal-to-Noise Ratio: 86dB Typ
n
Operates with Internal or External Reference
n
Internal Synchronized Clock
n
28-Pin SSOP Package
n
Industrial Process Control
n
Multiplexed Data Acquisition Systems
n
High Speed Data Acquisition for PCs
n
Digital Signal Processing
L, LTC and LT are registered trademarks of Linear Technology Corporation.
LTC1605-1 Low Power, 100kHz, 16-Bit Sampling ADC on 5V Supply
4k
4k
200Ω
2.5V
REFERENCE
20k 10k
16-BIT
SAMPLING ADC
D15 TO D0
33.2k
2.2μF
2.5V
2.5V
10μF 0.1μF
2.2μF
0V TO 4V
INPUT
V
IN
CAP
REF
AGND1
1
4
2
AGND2
5
DGND
14
CONTROL
LOGIC AND
TIMING
BYTE
CS
R/C
28 27
6 TO 13
15 TO 22
26
25
24
23
DIGITAL
CONTROL
SIGNALS
1605-1/2 TA01
16-BIT
OR 2 BYTE
PARALLEL
BUS
5V
V
DIG
V
ANA
BUFFER
3
BUSY
CODE
0
INL (LSBs)
65535
1605-1/2 TA02/G04
16384
32768
49152
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
Typical INL Curve
LTC1605-1/LTC1605-2
2
160512fa
For more information www.linear.com/LTC1605-1
absoluTe MaxiMuM raTings
V
ANA
..........................................................................7V
V
DIG
to V
ANA
............................................................0.3V
V
DIG
...........................................................................7V
Ground Voltage Difference
DGND, AGND1 and AGND2 ................................±0.3V
Analog Inputs (Note 3)
V
IN
.....................................................................±25V
CAP ............................. V
ANA
+ 0.3V to AGND2 – 0.3V
REF ....................................Indefinite Short to AGND2
Momentary Short to V
ANA
(Notes 1, 2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
IN
AGND1
REF
CAP
AGND2
D15 (MSB)
D14
D13
D12
D11
D10
D9
D8
DGND
V
DIG
V
ANA
BUSY
CS
R/C
BYTE
D0
D1
D2
D3
D4
D5
D6
D7
G PACKAGE
28-LEAD PLASTIC SSOP
TOP VIEW
T
JMAX
= 125°C, θ
JA
= 95°C/W
EXPOSED PAD (PIN #) IS GND, MUST BE SOLDERED TO PCB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
IN
AGND1
REF
CAP
AGND2
D15 (MSB)
D14
D13
D12
D11
D10
D9
D8
DGND
V
DIG
V
ANA
BUSY
CS
R/C
BYTE
D0
D1
D2
D3
D4
D5
D6
D7
N PACKAGE
28-LEAD PDIP
TOP VIEW
T
JMAX
= 125°C, θ
JA
= 130°C/W
OBSOLETE PACKAGE
pin conFiguraTion
Digital Input Voltage (Note 4) ......... V
DGND
– 0.3V to 10V
Digital Output Voltage ........ V
DGND
– 0.3V to V
DIG
+ 0.3V
Power Dissipation .............................................. 500mW
Operating Ambient Temperature Range
LTC1605-1C/LTC1605-2C ......................... 0°C to 70°C
LTC1605-1I/LTC1605-2I .......................–40°C to 85°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ...................300°C
LTC1605-1/LTC1605-2
3
160512fa
For more information www.linear.com/LTC1605-1
converTer characTerisTics
analog inpuT
PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution
l
16 Bits
No Missing Codes
l
15 Bits
Transition Noise 1 LSB
RMS
Integral Linearity Error (Note 7)
l
±3 LSB
Zero Error Ext. Reference = 2.5V (Note 8)
l
±10 mV
Zero Error Drift ±2 ppm/°C
Full-Scale Error Drift ±7 ppm/°C
Full-Scale Error Ext. Reference = 2.5V (Notes 12, 13)
l
±0.50 %
Full-Scale Error Drift Ext. Reference = 2.5V ±2 ppm/°C
Power Supply Sensitivity
V
ANA
= V
DIG
= V
DD
V
DD
= 5V ±5% (Note 9)
±8
LSB
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. With external reference (Notes 5, 6).
The l denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at T
A
= 25°C. (Note 5)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Analog Input Range (Note 9) 4.75V ≤ V
ANA
≤ 5.25V, 4.75V ≤ V
DIG
≤ 5.25V
LTC1605-1
LTC1605-2
l
l
0 to 4
±4
V
V
C
IN
Analog Input Capacitance 10 pF
R
IN
Analog Input Impedance 10 kΩ
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC1605-1CG#PBF LTC1605-1CG#TRPBF LTC1605-1CG 28-Lead Plastic SSOP 0°C to 70°C
LTC1605-1IG#PBF LTC1605-1IG#TRPBF LTC1605-1IG 28-Lead Plastic SSOP –40°C to 85°C
LTC1605-2CG#PBF LTC1605-2CG#TRPBF LTC1605-2CG 28-Lead Plastic SSOP 0°C to 70°C
LTC1605-2IG#PBF LTC1605-2IG#TRPBF LTC1605-2IG 28-Lead Plastic SSOP –40°C to 85°C
OBSOLETE PACKAGE
LTC1605-1CN#PBF LTC1605-1CN#TRPBF LTC1605-1CN 28-Lead PDIP 0°C to 70°C
LTC1605-1IN#PBF LTC1605-1IN#TRPBF LTC1605-1IN 28-Lead PDIP –40°C to 85°C
LTC1605-2CN#PBF LTC1605-2CN#TRPBF LTC1605-2CN 28-Lead PDIP 0°C to 70°C
LTC1605-2IN#PBF LTC1605-2IN#TRPBF LTC1605-2IN 28-Lead PDIP –40°C to 85°C
Consult factory for Military grade parts.
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on nonstandard lead based finish parts.
For more information on lead free part markings, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
orDer inForMaTion
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LTC1605-1CG#PBF

Mfr. #:
Buy LTC1605-1CG#PBF
Manufacturer:
Analog Devices Inc.
Description:
Analog to Digital Converters - ADC 100ksps 16-Bit ADC 0V to 4V
Lifecycle:
New from this manufacturer.
Delivery:
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