MCP4922 Microchip Technology, MCP4922 Datasheet - Page 7

• Manufacturer Part Number: MCP4922
• Description: 8/10/12-Bit Dual Voltage Output Digital-to-Analog Converter
• Manufacturer: Microchip Technology

AC CHARACTERISTICS (SPI TIMING SPECIFICATIONS)
FIGURE 1-1:
 2010 Microchip Technology Inc.
Electrical Specifications: Unless otherwise indicated, V
Typical values are at +25°C.
Schmitt Trigger High-Level
Input Voltage (All digital input
pins)
Schmitt Trigger Low-Level
Input Voltage
(All digital input pins)
Hysteresis of Schmitt Trigger
Inputs
Input Leakage Current
Digital Pin Capacitance
(All inputs/outputs)
Clock Frequency
Clock High Time
Clock Low Time
CS Fall to First Rising CLK
Edge
Data Input Setup Time
Data Input Hold Time
SCK Rise to CS Rise Hold
Time
CS High Time
LDAC Pulse Width
LDAC Setup Time
SCK Idle Time before CS Fall
Note 1:
LDAC
SCK
CS
Parameters
SI
This parameter is ensured by design and not 100% tested.
Mode 1,1
Mode 0,0
t
CSSR
SPI Input Timing Data.
t
SU
MSb in
t
HD
I
LEAKAGE
t
C
V
Sym
F
t
CSSR
t
t
C
V
t
t
CHS
CSH
IDLE
V
t
t
t
t
HYS
OUT
CLK
HD
LO
SU
LD
LS
HI
IN
IH
IL
,
t
HI
0.7 V
Min
100
15
15
40
15
10
15
15
40
40
—
—
—
—
-1
t
LO
DD
0.05 V
Typ
DD
10
—
—
—
—
—
—
—
—
—
—
—
—
—
—
= 2.7V – 5.5V, T
DD
0.2 V
MCP4902/4912/4922
Max
—
—
—
20
—
—
—
—
—
—
—
—
—
—
1
DD
Units
MHz T
A
pF
A
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
V
V
= -40 to +125°C.
LSb in
SHDN = LDAC = CS = SDI =
SCK + V
V
f
Note 1
Note 1
Applies only when CS falls with
CLK high. (Note 1)
Note 1
Note 1
Note 1
Note 1
Note 1
Note 1
Note 1
CLK
A
DD
t
CHS
= +25°C (Note 1)
= 5.0V, T
= 1 MHz (Note 1)
t
REF
LS
Conditions
= V
t
A
CSH
t
IDLE
= +25°C,
DD
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DS22250A-page 7
or V
t
LD
SS