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LTC2302CDD#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22
LTC2302/LTC2306
1
23026fb
For more information www.linear.com/LTC2302
Typical applicaTion
FeaTures
applicaTions
DescripTion
Low Noise, 500ksps,
1-/2-Channel, 12-Bit ADCs
The LT C
®
2302/LTC2306 are low noise, 500ksps, 1‑/2‑chan‑
nel, 12‑bit ADCs with an SPI/MICROWIRE compatible
serial interface. These ADCs include a fully differential
sample‑and‑hold circuit to reduce common mode noise.
The internal conversion clock allows the external serial
output data clock (SCK) to operate at any frequency up
to 40MHz.
The LTC2302/LTC2306 operate from a single 5V supply
and draw just 2.8mA at a sample rate of 500ksps. The
auto‑shutdown feature reduces the supply current to 14µA
at a sample rate of 1ksps.
The LTC2302/LTC2306 are packaged in a tiny 10‑pin 3mm
× 3mm DFN. The low power consumption and small size
make the LTC2302/LTC2306 ideal for battery‑operated
and portable applications, while the 4‑wire SPI compat
‑
ible serial interface makes these ADCs a good match for
isolated or remote data acquisition systems.
8192 Point FFT, f
IN
= 1kHz (LTC2306)
n
12-Bit Resolution
n
500ksps Sampling Rate
n
Low Noise: SINAD = 72.8dB
n
Guaranteed No Missing Codes
n
Single 5V Supply
n
Auto‑Shutdown Scales Supply Current with Sample
Rate
n
Low Power: 14mW at 500ksps
70µW at 1ksps
35µW Sleep Mode
n
1‑Channel (LTC2302) and 2‑Channel (LTC2306)
Versions
n
Unipolar or Bipolar Input Ranges (Software
Selectable)
n
Internal Conversion Clock
n
SPI/MICROWIRE
Compatible Serial Interface
n
Separate Output Supply OV
DD
(2.7V to 5.25V)
n
Software Compatible with the LTC2308
n
10‑Pin (3mm × 3mm) DFN Package
n
High Speed Data Acquisition
n
Industrial Process Control
n
Motor Control
n
Accelerometer Measurements
n
Battery‑Operated Instruments
n
Isolated and/or Remote Data Acquisition
TYPE
NUMBER OF INPUT CHANNELS
1 2 8
Int Reference LTC2308
Ext Reference LTC2302 LTC2306
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
SDI
SDO
SCK
CONVST
23026 TA01
SERIAL
PORT
ANALOG
INPUT
MUX
CH0 (IN
+
)
CH1 (IN
–
)
ANALOG INPUTS
0V TO 4.096V UNIPOLAR
±2.048V BIPOLAR
V
REF
2.7V TO 5.25V
SERIAL DATA LINK TO
ASIC, PLD, MPU, DSP
OR SHIFT REGISTER
LTC2302
LTC2306
V
DD
OV
DD
GND
0.1µF
5V
12-BIT
500ksps
ADC
+
–
0.1µF
PIN NAMES IN PARENTHESIS
REFER TO LTC2302
10µF0.1µF
10µF
FREQUENCY (kHz)
0
–40
–20
0
200
23026 TA01b
–60
–80
50 100 150 250
–100
–120
–50
–30
–10
–70
–90
–110
–130
–140
MAGNITUDE (dB)
f
SMPL
= 500kHz
SINAD = 72.8dB
THD = –88.7dB
LTC2302/LTC2306
2
23026fb
For more information www.linear.com/LTC2302
absoluTe MaxiMuM raTings
Supply Voltage (V
DD
, OV
DD
) ........................ –0.3V to 6V
Analog Input Voltage (Note 3)
CH0(IN
+
)‑CH1(IN
–
),
REF ..............................(GND – 0.3V) to (V
DD
+ 0.3V)
Digital Input Voltage
(Note 3) .............................(GND – 0.3V) to (V
DD
+ 0.3V)
(Notes 1, 2)
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2302CDD#PBF LTC2302CDD#TRPBF LDGV 10‑Lead (3mm × 3mm) Plastic DFN 0°C to 70°C
LTC2302IDD#PBF LTC2302IDD#TRPBF LDGV 10‑Lead (3mm × 3mm) Plastic DFN –40°C to 85°C
LTC2306CDD#PBF LTC2306CDD#TRPBF LDGW 10‑Lead (3mm × 3mm) Plastic DFN 0°C to 70°C
LTC2306IDD#PBF LTC2306IDD#TRPBF LDGW 10‑Lead (3mm × 3mm) Plastic DFN –40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
orDer inForMaTion
TOP VIEW
11
LTC2302
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
10
9
6
7
8
4
5
3
2
1
OV
DD
SCK
SDI
GND
V
REF
SDO
CONVST
V
DD
IN
+
IN
–
T
JMAX
= 150°C, θ
JA
= 43°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
TOP VIEW
11
LTC2306
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
10
9
6
7
8
4
5
3
2
1
OV
DD
SCK
SDI
GND
V
REF
SDO
CONVST
V
DD
CH0
CH1
T
JMAX
= 150°C, θ
JA
= 43°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
pin conFiguraTion
Digital Output Voltage ... (GND – 0.3V) to (OV
DD
+ 0.3V)
Power Dissipation .............................................. 500mW
Operating Temperature Range
LTC2302C/LTC2306C .............................. 0°C to 70°C
LTC2302I/LTC2306I .............................–40°C to 85°C
Storage Temperature Range ..................–65°C to 150°C
LTC2302/LTC2306
3
23026fb
For more information www.linear.com/LTC2302
conVerTer anD MulTiplexer cHaracTerisTics
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
+
Absolute Input Range (CH0, CH1, IN
+
) (Note 9)
l
–0.05 V
REF
V
V
IN
–
Absolute Input Range (CH0, CH1, IN
–
) Unipolar (Note 9)
Bipolar (Note 9)
l
l
–0.05
–0.05
0.25 • V
REF
0.75 • V
REF
V
V
V
IN
+
– V
IN
–
Input Differential Voltage Range V
IN
= V
IN
+
– V
IN
–
(Unipolar)
V
IN
= V
IN
+
– V
IN
–
(Bipolar)
l
l
0 to V
REF
±V
REF
/2
V
V
I
IN
Analog Input Leakage Current
l
±1 µA
C
IN
Analog Input Capacitance Sample Mode
Hold Mode
55
5
pF
pF
CMRR Input Common Mode Rejection Ratio 70 dB
The l denotes the specifications
which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C. (Notes 4, 5)
PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No Missing Codes)
l
12 Bits
Integral Linearity Error (Note 6)
l
±0.3 ±1 LSB
Differential Linearity Error
l
±0.25 ±1 LSB
Bipolar Zero Error (Note 7)
l
±1 ±6 LSB
Bipolar Zero Error Drift 0.002 LSB/°C
Unipolar Zero Error (Note 7)
l
±1 ±6 LSB
Unipolar Zero Error Drift 0.002 LSB/°C
Unipolar Zero Error Match (LTC2306) ±0.3 ±3 LSB
Bipolar Full‑Scale Error (Note 8)
l
±1.5 ±8 LSB
Bipolar Full‑Scale Error Drift 0.05 LSB/°C
Unipolar Full‑Scale Error (Note 8)
l
±1.2 ±6 LSB
Unipolar Full‑Scale Error Drift 0.05 LSB/°C
Unipolar Full‑Scale Error Match (LTC2306) ±0.3 ±3 LSB
analog inpuT
The l denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at T
A
= 25°C. (Note 4)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
REF
Input Range
l
0.1 V
DD
V
I
REF
Reference Input Current f
SMPL
= 0ksps, V
REF
= 4.096V
f
SMPL
= 500ksps, V
REF
= 4.096V
l
l
50
230
80
260
µA
µA
C
REF
Reference Input Capacitance 55 pF
reFerence inpuT
The l denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at T
A
= 25°C. (Note 4)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22

LTC2302CDD#TRPBF

Mfr. #:
Buy LTC2302CDD#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Analog to Digital Converters - ADC 12-Bit -1ch Differential 500ksps SAR ADC with SPI I/F
Lifecycle:
New from this manufacturer.
Delivery:
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