MCP4921-E/SN Microchip Technology Inc., MCP4921-E/SN Datasheet - Page 6

• Manufacturer Part Number: MCP4921-E/SN
• Description: SINGLE 12-BIT DAC WITH SPI INTERACE
• Manufacturer: Microchip Technology Inc.

Specifications of MCP4921-E/SN

• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

MCP4921/4922
AC CHARACTERISTICS (SPI TIMING SPECIFICATIONS)
FIGURE 1-1:
DS21897B-page 6
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
SI
Parameters
By design and characterization, not production tested.
Mode 1,1
Mode 0,0
t
CSSR
SPI™ Input Timing.
t
SU
MSB in
t
HD
I
LEAKAGE
C
t
V
Sym
F
t
CSSR
t
t
C
V
t
IDLE
V
t
t
CHS
CSH
t
t
t
HYS
OUT
CLK
LO
SU
HD
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
10
DD
—
—
—
—
—
—
—
—
—
—
—
—
—
—
= 2.7V – 5.5V, T
DD
0.2 V
Max
20
—
—
—
—
—
—
—
—
—
—
—
—
—
D
1
D
Units
MHz T
μA
pF
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
A
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)
= 1 MHz (Note 1)
= 5.0V, T
© 2007 Microchip Technology Inc.
t
LS
REF
Conditions
t
= V
CSH
A
t
IDLE
= +25°C,
DD
or AV
t
LD
SS