CAT522 Datasheet, PDF (3/10 Pages) Catalyst Semiconductor – 8-Bit Dual Digital POT With Independent Reference Inputs

Advanced Information
CAT522
DC ELECTRICAL CHARACTERISTICS (Cont.):
V_DD = +2.7V to +5.5V, V_REFH = V_DD, V_REFL = 0V, unless otherwise specified
Symbol Parameter
Analog Output
FSO
Full-Scale Output Voltage
ZSO
Zero-Scale Output Voltage
I_L
DAC Output Load Current
R_OUT
DAC Output Impedance
PSSR
Power Supply Rejection
Temperature
TC_O
V_OUT Temperature Coefficient
TC_REF
Temperature Coefficient of
V_REF Resistance
Power Supply
I_DD1
Supply Current (Read)
I_DD2
Supply Current (Write)
V_DD
Operating Voltage Range
Conditions
Min
V_R = V_REFH – V_REFL
V_R = V_REFH – V_REFL
V_DD = V_REFH = +5V
V_DD = V_REFH = +3V
I_LOAD = 1 µA
0.99 V_R
—
—
—
—
—
V_DD = +5V, I_LOAD = 250nA —
V_REFH= +5V, V_REFL = 0V
V_REFH to V_REFL
—
Normal Operating
—
Programming, V_DD = 5V
—
V_DD = 3V
—
2.7
Typ
Max
0.995 V_R
0.005 V_R
—
—
—
—
—
0.01 V_R
1
1K
1K
1
—
200
700
—
0.4
0.6
1.6
2.5
1.0
1.6
—
5.5
Units
V
V
µA
Ω
Ω
LSB / V
µV/ °C
ppm / °C
mA
mA
mA
V
AC ELECTRICAL CHARACTERISTICS:
V_DD = +2.7V to +5.5V, V_REFH = V_DD, V_REFL = 0V, unless otherwise specified
Symbol Parameter
Conditions
Digital
t_CSMIN
t_CSS
Minimum CS Low Time
CS Setup Time
t_CSH
CS Hold Time
t_DIS
DI Setup Time
t_DIH
DI Hold Time
t_DO1
Output Delay to 1
C_L = 100 pF,
see note 1
t_DO0
t_HZ
t_LZ
t_BUSY
Output Delay to 0
Output Delay to High-Z
Output Delay to Low-Z
Erase/Write Cycle Time
t_PS
t_PROG
t_CLKH
t_CLKL
PROG Setup Time
Minimum Pulse Width
Minimum CLK High Time
Minimum CLK Low Time
f_C
Clock Frequency
Analog
t_DS
DAC Settling Time to 1 LSB
Pin Capacitance
C_LOAD = 10 pF, V_DD = +5V
C_LOAD = 10 pF, V_DD = +3V
C_IN
Input Capacitance
V_IN = 0V, f = 1 MHz⁽²⁾
C_OUT
Output Capacitance
V_OUT = 0V, f = 1 MHz⁽²⁾
NOTES: 1. All timing measurements are defined at the point of signal crossing V_DD / 2.
2. These parameters are periodically sampled and are not 100% tested.
Min
150
100
0
50
50
—
—
—
—
—
150
700
500
300
DC
—
—
—
—
Typ
Max
—
—
—
—
—
—
—
—
—
—
—
150
—
150
400
—
400
—
4
5
—
—
—
—
—
—
—
—
—
1
3
10
6
10
8
—
6
—
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
ns
ns
ns
ns
MHz
µs
µs
pF
pF
3
8/00