AD7998BRU-1 Analog Devices Inc, AD7998BRU-1 Datasheet - Page 8

• Manufacturer Part Number: AD7998BRU-1
• Description: IC,Data Acquisition System,8-CHANNEL,12-BIT,TSSOP,20PIN,PLASTIC
• Manufacturer: Analog Devices Inc

Specifications of AD7998BRU-1

• Number Of Bits: 12
• Sampling Rate (per Second): 188k
• Data Interface: I²C, Serial
• Number Of Converters: 1
• Power Dissipation (max): 2.2mW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP (0.173", 4.40mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: EVAL-AD7998CBZ - BOARD EVALUATION FOR AD7998CBZ
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

AD7997/AD7998
Parameter
t
t
t
t
t
t
1
2
10
11
11A
12
SP
POWER-UP
A device must provide a data hold time for SDA in order to bridge the undefined region of the SCL falling edge.
For 3 V supplies, the maximum hold time with
SDA
SCL
S = START CONDITION
P = STOP CONDITION
Conditions
Standard mode
Fast mode
High speed mode
Standard mode
Fast mode
High speed mode
Standard mode
Fast mode
High speed mode
Standard mode
Fast mode
High speed mode
Fast mode
High speed mode
P
C
C
C
C
C
C
C
C
t
7
B
B
B
B
B
B
B
B
= 100 pF max
= 400 pF max
= 100 pF max
= 400 pF max
= 100 pF max
= 400 pF max
= 100 pF max
= 400 pF max
S
t
6
t
2
t
11
Min
20 + 0.1 C
10
20
20 + 0.1 C
10
20
20 + 0.1 C
10
20
20 + 0.1 C
10
20
0
0
1
t
4
C
B
= 100 pF max is 100 ns max.
AD7997/AD7998 Limit at T
B
B
B
B
Figure 2. Timing Diagram for 2-Wire Serial Interface
Max
300
300
80
160
1000
300
40
80
1000
300
80
160
300
300
40
80
50
10
t
1
t
12
t
3
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Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
typ µs
MIN
, T
MAX
S
t
5
t
10
Description
t
t
t
condition and after an Acknowledge bit
t
Pulse width of suppressed spike
Power-up time
FDA
RCL
RCL1
FCL
t
6
, rise time of SCL signal
, fall time of SCL signal
, fall time of SDA signal
, rise time of SCL signal after a repeated start
t
8
P
t
9