LTC1867AIGN#TRPBF Linear Technology, LTC1867AIGN#TRPBF Datasheet - Page 9

• Manufacturer Part Number: LTC1867AIGN#TRPBF
• Description: IC ADC 16BIT 8CH 200KSPS 16SSOP
• Manufacturer: Linear Technology

Specifications of LTC1867AIGN#TRPBF

• Number Of Bits: 16
• Sampling Rate (per Second): 200k
• Data Interface: MICROWIRE™, Serial, SPI™
• Number Of Converters: 1
• Power Dissipation (max): 9mW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP (0.150", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

APPLICATIONS INFORMATION
Analog Input Multiplexer
The analog input multiplexer is controlled by a 7-bit input
data word. The input data word is defi ned as follows:
SD OS S1 S0 COM UNI SLP
SD = SINGLE/DIFFERENTIAL BIT
OS = ODD/SIGN BIT
S1 = ADDRESS SELECT BIT 1
S0 = ADDRESS SELECT BIT 0
COM = CH7/COM CONFIGURATION BIT
UNI = UNIPOLAR/BIPOLAR BIT
SLP = SLEEP MODE BIT
+
–
+
–
+
–
+
–
(
(
(
(
(
(
(
(
–
+
–
+
–
+
–
+
)
)
)
)
)
)
)
)
+
+
+
+
+
+
+
{
{
{
{
7 Single-Ended
4 Differential
to CH7/COM
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7/COM
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7/COM (
Examples of Multiplexer Options
–
)
Combinations of Differential
+
–
–
+
+
+
+
+
+
+
+
+
+
+
+
+
{
{
8 Single-Ended
and Single-Ended
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7/COM
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7/COM
GND (
GND (
–
–
)
)
18637 AI01
Tables 1 and 2 show the confi gurations when COM = 0,
and COM = 1.
Table 1. Channel Confi guration (When COM = 0, CH7/COM Pin
Is Used as CH7)
Table 2. Channel Confi guration (When COM = 1, CH7/COM Pin
Is Used as COMMON)
SD
SD
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
+
–
+
–
{
{
OS
OS
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
Changing the MUX Assignment “On the Fly”
1st Conversion
CH2
CH3
CH4
CH5
CH7/COM
(UNUSED)
S1
S1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
LTC1863/LTC1867
S0
S0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
COM
COM
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
+
+
+
–
{
{
Channel Confi guration
Channel Confi guration
2nd Conversion
CH0
CH2
CH4
CH6
CH1
CH3
CH5
CH7
CH0
CH2
CH4
CH6
CH1
CH3
CH5
CH7
CH0
CH2
CH4
CH6
CH1
CH3
CH5
“+”
“+”
CH7/COM (
CH2
CH3
CH4
CH5
18637 AI02
–
)
CH7/COM
CH7/COM
CH7/COM
CH7/COM
CH7/COM
CH7/COM
CH7/COM
GND
GND
GND
GND
GND
GND
GND
GND
CH1
CH3
CH5
CH7
CH0
CH2
CH4
CH6
“–”
“–”
18637fa
9