Datasheet

MAX5186/MAX5189
Dual, 8-Bit, 40MHz, Current/Voltage,
Simultaneous-Output DACs
_______________________________________________________________________________________ 7
Pin Description
Reference InputREFR24
Digital GroundDGND23
Digital Supply, 2.7V to 3.3VDV
DD
22
Data Bit D7 (MSB)D721
7 PD
Power-Down Select
0: Enter DAC standby mode (DACEN = DGND) or power-up DAC (DACEN = DV
DD
).
1: Enter shutdown mode.
3 OUT1N Negative Analog Output, DAC1. Current output for MAX5186; voltage output for MAX5189.
Data Bits D1–D6D1–D615–20
Data Bit D0 (LSB)D014
Digital GroundDGND13
Digital GroundDGND12
Active-Low Reference Enable. Connect to DGND to activate on-chip 1.2V reference.
REN
11
No Connect. Do not connect to this pin.N.C.10
Clock inputCLK9
Active-Low Chip Select
CS
8
NAME FUNCTION
1 CREF1 Reference Bias Bypass, DAC1
2 OUT1P Positive Analog Output, DAC1. Current output for MAX5186; voltage output for MAX5189.
PIN
6 DACEN
DAC Enable, Digital Input
0: Enter DAC standby mode with PD = DGND.
1: Power-up DAC with PD = DGND.
X: Enter shutdown mode with PD = DV
DD
(X = don’t care).
5 AV
DD
Analog Positive Supply, 2.7V to 3.3V
4 AGND Analog Ground
Reference Bias Bypass, DAC2CREF228
Positive Analog Output, DAC2. Current output for MAX5186; voltage output for MAX5189.OUT2P27
Negative Analog Output, DAC2. Current output for MAX5186; voltage output for MAX5189.OUT2N26
Reference OutputREFO25