X79000 Datasheet, PDF (5/18 Pages) Intersil Corporation – NV DAC with Selectable Output Range and Memory

X79000, X79001, X79002
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Min
Reference
Vrefout
Output Voltage at VRef at 25°C
1.20
TCOref
Temperature coefficient of VRef
output voltage
R_VHVL
Resistance between VL and VH
9
Digital Interface
t_OEVALID
OE rising edge to output valid
delay
t_OEDIS
OE falling edge to high impedance
output delay
C_out
SO and RDY pin capacitance
C_in
CLR, CS, SCK, A0, A1, A2, A3, A4,
A5, SI, UP, DOWN, OE
pin capacitance
I_PLDN
On-chip pull down current at A0,
0
A1, A2, A3, A4, A5, UP, DOWN,
and CLR
V_ILSPI
CS, SCK and SI input Low voltage -0.8
V_IHSPI
I_INSPI
CS, SCK and SI input High voltage
CS, CLK and SI input current
0.8 x
Vcc
-1
V_OHSO
SO output High voltage
V_OLSO
I_OZSO
V_OLSO
I_OHRDY
V_ILCMOS
SO Output Low Voltage
SO output High impedance current
RDY and SO output Low voltage
RDY output High current
CLR, OE, UP, DOWN, A0, A1, A2,
A3, A4, and A5 input Low voltage
V_IHCMOS
CLR, OE, UP, DOWN, A0, A1, and
A2 input High voltage
V_HYST
CS, SI, SCK, CLR, OE, UP and
DOWN input hysteresis
Power Requirements
Iccstby
Standby current into Vcc pin
Iccfull
Full operation current into Vcc pin
Vcc-
0.4
0
-20
0
0
-0.3
0.8 x
Vcc
0.5
Iccwrite
Nonvolatile Write current into Vcc
pin
Typ Max Unit
Test Conditions / Notes
1.21 1.22
V -20µA < I(VRef) < 0,
Vref as an output
50
ppm/ ⁽⁵⁾
°C
11.4 14 kΩ VH & VL external
100 µs
100 µs
10
pF Voltage at pin of 0V or Vcc. 1 MHz
8
pF ^{signal. (4)}
1
20 µA Voltage at the pin between 0V and
Vcc
0.2 x V
Vcc
Vcc + V
0.3
10 µA Voltage at the pin between 0V and
Vcc
Vcc
V I(SO) = -2mA
0.4
V I(SO) = 2mA
+20 µA V(SO) between 0 and Vcc
0.4
V I(SO) or I(RDY) = 2 mA
100 µA V(RDY) = Vcc
0.2 x V
Vcc
Vcc + V
0.3
V (5)
2.5 mA V(SCK) = V(SI) = 0 V, V(CS) = Vcc
3
mA 2-wire interface reading from
memory, 2.5 MHz clock at SCK,
V(OE) = V_CC, VFB = VBUF ⁽²⁾
3
mA Average during internal
non-volatile write cycle
5
FN8147.0
March 17, 2005