ADS1110 differential ADC connection guide

• +3.3 V
  • VDD (5)
  • Host 3.3 V
  • C1.1
  • R1.1
  • R2.1
• Ground
  • GND (2)
  • Host ground
  • C1.2
  • VIN− (6)
  • Test source return
• I²C data
  • SDA (4)
  • Host SDA
  • R1.2
• I²C clock
  • SCL (3)
  • Host SCL
  • R2.2
• Analog test input
  • VIN+ (1)
  • 1.000 V low-impedance test source output

Bench checks

• Find the address associated with the ED0–ED7 top marking. Configure continuous conversion at 15 samples/s and gain 1.
• Read the two data bytes as a signed 16-bit number. A 1.000 V input ideally gives about +16000 counts. Compare with the actual source voltage and the device error limits.

Texas Instruments SBAS276A Rev. A, pp. 2–3 and 6–12.

Highlighted contacts are used in the required step or selected circuit. Select a contact to inspect it.

The same SOT-23-6 pinout applies to the eight hardware address selections. Match the A0 through A7 suffix to the fitted device.

ADS1110A0IDBVT

Address 0x48 · marking ED0 · 250-piece reel.

ADS1110A0IDBVR

Address 0x48 · marking ED0 · 3000-piece reel.

ADS1110A1IDBVT

Address 0x49 · marking ED1 · 250-piece reel.

ADS1110A1IDBVR

Address 0x49 · marking ED1 · 3000-piece reel.

ADS1110A2IDBVT

Address 0x4A · marking ED2 · 250-piece reel.

ADS1110A2IDBVR

Address 0x4A · marking ED2 · 3000-piece reel.

ADS1110A3IDBVT

Address 0x4B · marking ED3 · 250-piece reel.

ADS1110A3IDBVR

Address 0x4B · marking ED3 · 3000-piece reel.

ADS1110A4IDBVT

Address 0x4C · marking ED4 · 250-piece reel.

ADS1110A4IDBVR

Address 0x4C · marking ED4 · 3000-piece reel.

ADS1110A5IDBVT

Address 0x4D · marking ED5 · 250-piece reel.

ADS1110A5IDBVR

Address 0x4D · marking ED5 · 3000-piece reel.

ADS1110A6IDBVT

Address 0x4E · marking ED6 · 250-piece reel.

ADS1110A6IDBVR

Address 0x4E · marking ED6 · 3000-piece reel.

ADS1110A7IDBVT

Address 0x4F · marking ED7 · 250-piece reel.

ADS1110A7IDBVR

Address 0x4F · marking ED7 · 3000-piece reel.

• ADS1110 manufacturer documentation· Texas Instruments SBAS276A Rev. A, pp. 2–3 and 6–12.