Datasheet

7Maxim Integrated
MAX5318
18-Bit, High-Accuracy Voltage Output DAC with
Digital Gain, Offset Control, and SPI Interface
ELECTRICAL CHARACTERISTICS (continued)
(V
AVDD
= V
DDIO
= 2.7V to 3.3V, V
AVSS
= -1.25V, V
AGND
= V
DGND
= V
AGND_F
= V
AGND_S
= 0V, V
REF
= 2.5V, TC/SB = PD = LDAC =
M/Z = DGND, RST = V
DDIO
, C
REFO
= 100pF, C
L
= 100pF, R
L
= 10kω, C
BYPASS
= 1µF, GAIN = 0x3FFFF, OFFSET = 0x00000,
T
A
= -40°C to +105°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (GAIN = 0x3FFFF and OFFSET = 0x00000.)(Note 2)
DIGITAL INTERFACE ELECTRICAL CHARACTERISTICS
(V
AVDD
= 5V, V
DDIO
= 2.7V to 5.5V, V
AVSS
= -1.25V, V
REF
= 4.096V, R
L
= 10kω, TC/SB = M/Z = DGND, C
REFO
= 100pF, C
BYPASS
= 1µF, T
A
= -40°C to +105°C, unless otherwise noted. Typical values are at T
A
= +25°C.)(GAIN = 0x3FFFF and OFFSET = 0x00000.)
(Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Busy Time t
BUSY
(Note 5) 1.9 Fs
DAC Glitch Impulse
Major code transition (1FFFFh to 20000h),
R
L
= 10kI, C
L
= 50pF
2.5 nVs
Digital Feedthrough
CSB = V
DDIO
, f
SCLK
= 1kHz, all digital
inputs from 0V to V
DDIO
1 nVs
Output Voltage-Noise Spectral
Density
At f = 1kHz to 10kHz, without reference,
code = 20000h
26 nV/√Hz
Output Voltage Noise
At f = 0.1Hz to 10Hz, without reference,
code = 20000h
1.55 FV
P-P
Wake-Up Time From power-down mode 75 Fs
Power-Up Time From power-off 2 ms
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DIGITAL INPUTS (SCLK, DIN, CS, LDAC, M/Z, RST)
Input High Voltage V
IH
0.7 x
V
DDIO
V
Input Low Voltage V
IL
0.3 x
V
DDIO
V
Input Hysteresis (Note 4) V
IHYST
200 300 mV
Input Leakage Current I
IN
Q0.1 Q1 FA
Input Capacitance C
IN
10 pF
DIGITAL OUTPUT CHARACTERISTICS (DOUT, READY, BUSY)
Output Low Voltage V
OL
I
SOURCE
= 5.0mA 0.25 V
Output High Voltage V
OH
I
SINK
= 5.0mA, except for BUSY
V
DDIO
- 0.25
V
Output Three-State Leakage I
OZ
DOUT only
Q0.1 Q1 FA
Output Three-State Capacitance C
OZ
DOUT only 15 pF
Output Short-Circuit Current I
OSS
V
DDIO
= 5.25V
Q150
mA