ISL28127_12 Datasheet, PDF (28/44 Pages) Intersil Corporation – Providing high-performance solutions for every link in the signal chain

► 12-bit SAR
Easy to Use, Cost
Effective SAR ADCs
with 1, 2, 4, and
8-channel Inputs
The new ISL263xx family of multichannel-
input SAR ADCs from Intersil offer a new
level of cost-effectiveness and ease of use
for all types of Industrial Process Control,
Instrumentation, and related measurement
applications. Input buffers that simplify input
drive requirements and pin—compatibility
across the entire product family make the
family easy to design, and re-use across
multiple platforms and product families.
Key Features
• Single, 2, 4, and 8-channel Multiplexed Inputs
• Single-Ended and Differential Input Versions
• Excellent Linearity: +/- 0.7LSB DNL, +/-0.7LSB
INL at 12 bits (max)
• Buffered Inputs Ease Input Drive Requirements,
Reduce Solution Cost
• Pin-compatible Family Simplifies Re-use of
Proven Designs
• Robust 5kV ESD Rating Perfect for Industrial
Environments
• SPI Interface Connects to Popular Micros and
FPGAs
• Specified for 2.7V to 5.5V Operation - Only 8mW
at 3V
• Popular TSSOP and SOIC Packages
• Competitively Priced
12-bit, 125kSPS – 250kSPS SAR: ISL2631x, ISL2632x
Highly Integrated
VDD
VREF
ISL26310/11/12/13/14/15/19
ANALOG INPUTS
DIFFERENTIAL/
SINGLE-ENDED
MUX
BUFFER
GND
ADC
OSC
SPI
POR
CNV
SCLK
SDO
SDI
Superior Linearity Specifications
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
-2000
-1000
0
CODE
1000
2000
DIFFERENTIAL NONLINEARITY (DNL) vs CODE
125ksps
250ksps
Single channel
Differential
Single-Ended
8L SOIC
8L SOIC
ISL26310FBZ
ISL26311FBZ
ISL26320FBZ
ISL26321FBZ
2-channel
Differential
Single-ended
16L TSSOP
8L SOIC
ISL26312FVZ
ISL26313FBZ
ISL26322FVZ
ISL26323FBZ
4-channel
Differential
Single-ended
16L TSSOP
16L TSSOP
ISL26314FVZ
ISL26315FVZ
ISL26324FVZ
ISL26325FVZ
8-channel
Single-ended
16L TSSOP
ISL26319FVZ
ISL26329FVZ
28
Intersil Signal Path Products  2012  www.intersil.com