Rainbow Electronics MAX5173 - Manual (Page 9)

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.)
-25.0
-20.0
-10.0
-15.0
-5.0
0
0 1000 500 1500 2000 2500 3000
REFERENCE VOLTAGE
INPUT FREQUENCY RESPONSE
MAX5173-27
FREQUENCY (kHz)
GAIN (dB)
V REF = 0.67Vp-p + 1.25V DC
V DD
(1V/div)
V OUT
(10mV/div)
AC-COUPLED
START-UP GLITCH
MAX5173 toc28
50ms/div
Pin Description
Voltage Output. High impedance in shutdown. Output voltage is limited to V
DD
. OUT 2
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.
RS 3
Chip-Select Input (digital input) CS 6
Serial Clock Input (digital input) SCLK 8
Serial-Data Input (digital input). Data is clocked in on the rising edge of SCLK. DIN 7
Clear DAC (digital input). Clears the DAC to its predetermined output state as set by RS. CLR 5
Serial-Data Output DOUT 10
Shutdown (digital input). Pulling SHDN high when PDL = V
DD
places the chip in shutdown mode with a
maximum shutdown current 0f 10µA.
SHDN 12
User-Programmable Output. State is set by serial input. UPO 11
Reference Input. Maximum V REF is V DD - 1.4V. REF 14
PIN
Positive Supply. Bypass to AGND with a 4.7µF capacitor in parallel with a 0.1µF capacitor. V DD 16
Feedback Input FB 1
FUNCTION NAME
No Connection N.C. 15
Analog Ground AGND 13
Digital Ground DGND 9