Rainbow Electronics MAX5191 - Manual (Page 7)

MAX5188/MAX5191
Dual, 8-Bit, 40MHz, Current/Voltage,
Alternate-Phase Output DACs
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Pin Description
Data Bit D7 (MSB) D7 21
Reference Bias Bypass, DAC2 CREF2 28
Positive Analog Output, DAC2. Current output for the MAX5188; voltage output for the MAX5191. OUT2P 27
Negative Analog Output, DAC2. Current output for the MAX5188; voltage output for the MAX5191. OUT2N 26
Reference Output REFO 25
PIN FUNCTION NAME
Data Bit D0 (LSB) D0 14
Data Bits D1–D6 D1–D6 15–20
Digital Supply, +2.7V to +3.3V DV DD 22
Reference Input REFR 24
Clock Input CLK 9
Not Connected. Do not connect to this pin. N.C. 10
Active-Low Reference Enable. Connect to DGND to activate on-chip +1.2V reference. REN 11
Digital Ground DGND 12, 13, 23
Active-Low Chip Select CS 8
Power-Down Select
0: Enter DAC standby mode (DACEN = DGND) or power-up DAC (DACEN = DV
DD )
1: Enter shutdown mode
PD 7
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)
DACEN 6
Negative Analog Output, DAC1. Current output for the MAX5188; voltage output for the MAX5191. OUT1N 3
Analog Ground AGND 4
Analog Positive Supply, +2.7V to +3.3V AV DD 5
Positive Analog Output, DAC1. Current output for the MAX5188; voltage output for the MAX5191. OUT1P 2
1 Reference Bias Bypass, DAC1 CREF1