TC7106/A/TC7107/A is a 3-1/2 digit direct display drive analog-to-digital converter with features such as internal reference with low temperature drift, driving LCD or LED displays, zero reading with zero input, low noise for stable display, auto-zero cycle, true polarity indication, convenient 9V battery operation, high impedance CMOS differential inputs, simplified ratiometric measurements with differential reference inputs, and low power operation.
The TC7106/A and TC7107/A are 3‑1/2‑digit direct‑display analog‑to‑digital converters with internal reference, low‑drift temperature coefficient, and options for LCD or LED displays. They support low‑power operation, battery use, and high‑impedance differential inputs for ratiometric measurements.
The document includes a feature list, package options, detailed electrical specifications (supply voltage, power dissipation, leakage current, temperature coefficients), pin‑function tables, operation theory for dual‑slope conversion, and mechanical dimensions. It also provides ordering information and legal notices.
| Supply Voltage (TC7106A) | 15 V |
|---|---|
| Supply Voltage (TC7107A) | +6 V / –9 V |
| Power Dissipation (44‑Pin PQFP) | 1.00 W |
| Input Leakage Current | 1‑10 pA |
| Zero Input Reading | -000.0 |
| Full Scale Output | 200.0 mV |
| Temperature Coefficient (TC7106/7) | 80 ppm/°C typical |
| Temperature Coefficient (TC7106A/7A) | 20 ppm/°C typical |
The TC7106/A operates with a supply voltage up to 15 V.
The input leakage current is between 1 pA and 10 pA.
The reference temperature coefficient is 20 ppm/°C typical.