ltc2440cgn-trpbf Linear Technology Corporation, ltc2440cgn-trpbf Datasheet - Page 16

• Manufacturer Part Number: ltc2440cgn-trpbf
• Description: 24-bit High Speed Differential Delta Sigma Adc With Selectable Speed/resolution
• Manufacturer: Linear Technology Corporation

LTC2440
APPLICATIONS INFORMATION
(EXTERNAL)
16
BUSY
SDO
SCK
CS
(EXTERNAL)
CONVERSION
BUSY
SDO
SCK
CS
SLEEP
1
BIT 0
EOC
5
SLEEP
CONVERSION
Hi-Z
DATA OUTPUT
TEST EOC
Figure 6. External Serial Clock, Reduced Data Output Length
Hi-Z
Figure 7. External Serial Clock, CS = 0 Operation (2-Wire)
BIT 31
TEST EOC
EOC
ANALOG INPUT RANGE
REFERENCE VOLTAGE
–0.5V
SLEEP
ANALOG INPUT RANGE
Hi-Z
BIT 30
REFERENCE VOLTAGE
–0.5V
REF
0.1V TO V
TO 0.5V
REF
BIT 31
EOC
0.1V TO V
TO 0.5V
1μF
BIT 29
4.5V TO 5.5V
REF
CC
SIG
1, 8, 9, 16
1μF
4.5V TO 5.5V
REF
1, 8, 9, 16
BIT 30
CC
2
3
4
5
6
BIT 28
MSB
V
REF
REF
IN
IN
GND
2
3
4
5
6
CC
+
–
LTC2440
DATA OUTPUT
+
–
V
REF
REF
IN
IN
GND
CC
+
–
LTC2440
+
–
BUSY
BIT 29
SDO
SCK
SIG
EXT
BIT 27
SDI
CS
f
O
BUSY
SDO
SCK
EXT
SDI
CS
15
14
13
12
11
10
7
f
O
DATA OUTPUT
15
14
13
12
11
10
7
BIT 28
MSB
BIT 26
3-WIRE
SPI INTERFACE
V
CC
= EXTERNAL OSCILLATOR
= INTERNAL OSCILLATOR
3-WIRE
SPI INTERFACE
200nV NOISE, 50/60Hz REJECTION
10-SPEED/RESOLUTION PROGRAMMABLE
2μV NOISE, 880Hz OUTPUT RATE
BIT 27
V
= EXTERNAL OSCILLATOR
= INTERNAL OSCILLATOR
CC
200nV NOISE, 50/60Hz REJECTION
10-SPEED/RESOLUTION PROGRAMMABLE
2μV NOISE, 880Hz OUTPUT RATE
BIT 9
LSB
BIT 5
24
BIT 8
CONVERSION
Hi-Z
BIT 0
TEST EOC
2410 F06
CONVERSION
2440 F07
2440fc