ISL26134AVZ-T7A Intersil, ISL26134AVZ-T7A Datasheet - Page 4

• Manufacturer Part Number: ISL26134AVZ-T7A
• Description: Analog to Digital Converters - ADC ISL26134AVZ LW-NOISE 24BIT DELTASIGMA ADC
• Manufacturer: Intersil

Specifications of ISL26134AVZ-T7A

• Product Category: Analog to Digital Converters - ADC
• Rohs: yes
• Number Of Channels: 4
• Architecture: Sigma-Delta
• Conversion Rate: 80 sps
• Resolution: 24 bit
• Input Type: Differential
• Snr: No
• Interface Type: Serial (2-Wire)
• Operating Supply Voltage: 5 V
• Maximum Operating Temperature: + 105 C
• Package / Case: TSSOP-28
• Maximum Power Dissipation: 68 mW
• Minimum Operating Temperature: - 40 C
• Number Of Converters: 1
• Voltage Reference: External

Pin Descriptions
Circuit Description
The ISL26132 (2-channel) and ISL26134 (4-channel) devices are
very low noise 24-bit delta-sigma ADCs that include a
programmable gain amplifier and an input multiplexer. The
ISL26132 offers an on-chip temperature measurement
capability.
The ISL26132, ISL26134 provide pin compatibility and output
data compatibility with the ADS1232/ADS1234, and offer the
same conversion rates of 10Sps and 80Sps.
All the features of the ISL26132, ISL26134 are pin-controllable,
while offset calibration, standby mode, and output conversion
data are accessible through a simple 2-wire interface.
The clock can be selected to come from an internal oscillator, an
external clock signal, or crystal (4.9152MHz typical).
SDO/RDY
SPEED
PDWN
NAME
SCLK
ISL26132
21
22
23
24
4
(Continued)
PIN NUMBER
ISL26134
25
26
27
28
ISL26132, ISL26134
ANALOG/DIGITAL
INPUT/OUTPUT
Digital Output
Digital Input
Digital Input
Digital Input
Power-Down: Holding this pin low powers down the entire
converter and resets the ADC.
Serial Clock: Clock out data on the rising edge. Also used to
initiate Offset Calibration and Sleep modes. See “Serial Clock
Input (SCLK)” on page 14 for more details.
Dual-Purpose Output:
Data Ready: Indicate valid data by going low.
Data Output: Outputs data, MSB first, on the first rising edge
of SCLK.
SPEED
0
1
TABLE 4. DATA RATE SELECT
DESCRIPTION
DATA RATE
10Sps
80Sps
September 9, 2011
FN6954.1