ISL23445 Datasheet, PDF (6/20 Pages) Intersil Corporation – Quad, 256 Tap, Low Voltage Digitally Controlled Potentiometer (XDCP™)

ISL23445
Analog Specifications V_CC = 2.7V to 5.5V, V_LOGIC = 1.2V to 5.5V over recommended operating conditions unless otherwise
stated. Boldface limits apply over the operating temperature range, -40°C to +125°C. (Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
MAX
(Note 20) TYP (Note 8) (Note 20) UNITS
R_offset Offset, wiper at 0 position
(Note 16)
W option; V_CC = 2.7V to 5.5V
0
3
5.5
MI
(Note 15)
W option; V_CC = 1.7V
6.3
MI
(Note 15)
U, T option; V_CC = 2.7V to 5.5V
0
0.5
2
MI
(Note 15)
U, T option; V_CC = 1.7V
1.1
MI
(Note 15)
Rmatch DCP to DCP Matching
(Note 23)
Any two DCPs at the same tap position with the
-2
same terminal voltages
±0.5
2
LSB
(Note 9)
TCR Resistance Temperature Coefficient
(Note 19)
W option; Wiper register set between 32 hex
and FF hex
170
ppm/°C
U option; Wiper register set between 32 hex and
80
ppm/°C
FF hex
T option; Wiper register set between 32 hex and
50
ppm/°C
FF hex
Operating Specifications V_CC = 2.7V to 5.5V, V_LOGIC = 1.2V to 5.5V over recommended operating conditions unless otherwise
stated. Boldface limits apply over the operating temperature range, -40°C to +125°C.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
MAX
(Note 20) TYP (Note 8) (Note 20) UNITS
I_LOGIC V_LOGIC Supply Current (Write/Read)
I_CC
V_CC Supply Current (Write/Read)
I_{LOGIC SB} V_LOGIC Standby Current
V_LOGIC = 5.5V, V_CC = 5.5V,
f_SCK = 5MHz (for SPI active read and write)
V_LOGIC = 1.2V, V_CC = 1.7V,
f_SCK = 1MHz (for SPI active read and write)
V_LOGIC = 5.5V, V_CC = 5.5V
V_LOGIC = 1.2V, V_CC = 1.7V
V_LOGIC = V_CC = 5.5V,
SPI interface in standby
1.5
mA
30
µA
110
µA
10
µA
2
µA
V_LOGIC = 1.2V, V_CC = 1.7V,
SPI interface in standby
0.5
µA
I_{CC SB} V_CC Standby Current
V_LOGIC = V_CC = 5.5V,
SPI interface in standby
3
µA
V_LOGIC = 1.2V, V_CC = 1.7V,
SPI interface in standby
1.5
µA
I_{LOGIC SHDN} V_LOGIC Shutdown Current
V_LOGIC = V_CC = 5.5V,
SPI interface in standby
V_LOGIC = 1.2V, V_CC = 1.7V,
SPI interface in standby
2
µA
0.5
µA
I_{CC SHDN} V_CC Shutdown Current
V_LOGIC = V_CC = 5.5V,
SPI interface in standby
3
µA
V_LOGIC = 1.2V, V_CC = 1.7V,
SPI interface in standby
1.5
µA
I_LkgDig Leakage Current, at Pins CS, SDO, SDI,
SCK
Voltage at pin from GND to V_LOGIC
-0.4
<0.1
0.4
µA
6
FN7874.0
June 21, 2011