MAX5171/MAX5173
Low-Power, Serial, 14-Bit DACs
with Force/Sense Voltage Output
_______________________________________________________________________________________ 9
Typical Operating Characteristics (continued)
(MAX5171: V
DD
= +5V, V
REF
= 2.5V; MAX5173: V
DD
= +3V, V
REF
= 1.25V; C
L
= 100pF, FB = OUT, code = 3FFF hex, T
A
= +25°C,
unless otherwise noted.)
Pin Description
Voltage Output. High impedance in shutdown. Output voltage is limited to V
DD
.OUT2
Power-Down Lockout (digital input). Connect to V
DD
to allow shutdown. Connect to DGND to disable shut-
down.
PDL
4
Reset Mode Select (digital input). Connect to V
DD
to select midscale reset output value. Connect to DGND
to select 0 reset output value.
RS3
Chip-Select Input (digital input)
CS
6
Serial Clock Input (digital input)SCLK8
Serial-Data Input (digital input). Data is clocked in on the rising edge of SCLK.DIN7
Clear DAC (digital input). Clears the DAC to its predetermined output state as set by RS.
CLR
5
Serial-Data OutputDOUT10
Shutdown (digital input). Pulling SHDN high when PDL = V
DD
places the chip in shutdown mode with a
maximum shutdown current 0f 10µA.
SHDN12
User-Programmable Output. State is set by serial input.UPO11
Reference Input. Maximum V
REF
is V
DD
- 1.4V.REF14
PIN
Positive Supply. Bypass to AGND with a 4.7µF capacitor in parallel with a 0.1µF capacitor.V
DD
16
Feedback InputFB1
FUNCTIONNAME
No Connection N.C.15
Analog GroundAGND13
Digital GroundDGND9
