ICM7722 ICMIC [IC MICROSYSTEMS], ICM7722 Datasheet

no-image

ICM7722

Manufacturer Part Number
ICM7722
Description
12-Bit 1.2v Low Power Dual DAC With Serial Interface and Voltage Output
Manufacturer
ICMIC [IC MICROSYSTEMS]
Datasheet
FEATURES
APPLICATION
ICm ic
ICm ic
IC M ICROSYSTEM S
IC M ICROSYSTEM S
Rev A0.1
• 12-Bit 1.2v Dual DAC in 8 Lead TSSOP
• Ultra-Low Power Consumption
• Guaranteed Monotonic
• Wide Voltage Output Swing Buffer
• Three-wire SPI/QSPI and Micro-wire
• Schmitt-Triggered Inputs for Direct
Package
Interface Compatible
Interfacing to opto-couplers
• Battery-Powered Applications
• Audio Applications
• Industrial Process Control
• Digital Gain and Offset Adjustment
ICmic reserves the right to change specifications without prior notice
TM
TM
With Serial Interface and Voltage Output
The ICM7722 is a 12-Bit Voltage Output, ultra
Low Power,
monotonic behavior. This DAC is available in
8- Lead TSSOP package.
The input interface is an easy to use three-wire
SPI, QSPI and Micro-wire compatible interface.
The DAC has Schmitt- Triggered inputs for
Direct Interfacing to opto-couplers easily.
BLOCK DIAGRAM
OVERVIEW
12-Bit 1.2v Low Power Dual DAC
ICM7722
INPUT
REGISTER A
INPUT
REGISTER B
INPUT CONTROL LOGIC, REGISTERS AND LATCHES
CS
SDI
DAC
REGISTER A
DAC
REGISTER B
Dual DAC, with guaranteed
SCK
DAC A
DAC B
REFIN
ICM7722
AMPLIFIER
AMPLIFIER
1
VOA
VOB

Related parts for ICM7722

ICM7722 Summary of contents

Page 1

... ICmic reserves the right to change specifications without prior notice 12-Bit 1.2v Low Power Dual DAC With Serial Interface and Voltage Output OVERVIEW The ICM7722 is a 12-Bit Voltage Output, ultra Low Power, Dual DAC, with guaranteed monotonic behavior. This DAC is available in 8- Lead TSSOP package. ...

Page 2

... Exposure to absolute maximum rating conditions for extended periods may affect reliability. Rev A0.1 ICmic reserves the right to change specifications without prior notice 08 Lead TSSOP VOA VDD 3 6 REFIN 5 VOB TOP VIEW 0.9 to 1.32 -0.3 to 1.32 -0.3 to 1.32 -65 to +150 ICM7722 Value Unit V +/- 25 300 C 2 ...

Page 3

... Settling Time Fs Conversion Speed Td Analog output Delay Note 1: Linearity is defined from code 127 to 3970 (ICM7722) Note 2: Guaranteed by design; not tested in production Note 3: See Applications Information Note 4: Output delay measured from the 50% point of the rising edge of input data to the full scale transition Note 5: Settling time measured from the 50% point of full scale transition to the output remaining within 1/2LSB ...

Page 4

... Td Vout 50% 0000..0000 1111..1111 Data Vout Ts Rev A0.1 ICmic reserves the right to change specifications without prior notice Test Conditions Min Typ Max (Note 2) 30 (Note 2) 10 (Note 2) 10 (Note 2) 0 (Note 2) 10 (Note 2) 20 0.5LSB ICM7722 Unit ...

Page 5

... ICmic reserves the right to change specifications without prior notice D11 D10 DATA WORD C0 D11 D10 Figure 3. Contents of Input Shift Register ICM7722 LSB (UPDATE OUTPUT LSB LSB ...

Page 6

... X 0 DETAILED DESCRIPTION The ICM7722 is a 12-bit voltage output Dual DAC. This device has a 16-bit input shift register and the DAC has a double buffered digital input. This DAC has a guaranteed monotonic behavior and the operating supply range is from 0.9v to 1.32v. Reference Input The reference input accepts positive DC and AC signals ...

Page 7

... Table 2 for details of operation of this function. Power-On Reset There is a power-on reset on board that will clear the contents of all the latches to all 0s on power-up and the DAC voltage output will go to ground. Rev A0.1 ICmic reserves the right to change specifications without prior notice is ICM7722 7 ...

Page 8

... VDD. A positive gain error or positive offset will cause the output to be limited to the positive supply voltage resulting in a dead-band of codes close to full-scale. Rev A0.1 ICmic reserves the right to change specifications without prior notice ICM7722 VDD DEADBAND NEGATIVE OFFSET Figure 4. Effect of Negative Offset ...

Page 9

... PACKAGE INFORMATION 8 Lead TSSOP PACKAGE INFORMATION Rev A0.1 ICmic reserves the right to change specifications without prior notice ICM7722 9 ...

Page 10

... ICM77x2 P G Device 2- ICM7722 Rev A0.1 ICmic reserves the right to change specifications without prior notice ICM7722 G = RoHS Compliant Lead-Free package. Blank = Standard package. Non lead-free. Package T = 8-Lead TSSOP 10 ...

Related keywords